Dabberlocks
- Group
- Seaweeds and algae
- Peak month
- June
- Records since 2000
- 2,258
Dace
- Group
- Fish
- Peak month
- August
- Records since 2000
- 484
Dacne bipustulata
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 325
Dacne rufifrons
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 162
Dacnusa areolaris
- Group
- Bees, wasps and ants
- Peak month
- May
- Records since 2000
- 187
Dacnusa laevipectus
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 263
Dacnusa longiradialis
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 56
Dacnusa maculipes
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 387
Dacrila fallax
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 93
Dacrymyces capitatus
- Group
- Fungi
- Peak month
- April
- Records since 2000
- 66
Dacryobolus karstenii
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 82
Dactylochelifer latreillii
- Group
- Mites, harvestmen and other arachnids
- Peak month
- July
- Records since 2000
- 272
Dactylospora parasitica
- Group
- Lichens
- Peak month
- December
- Records since 2000
- 50
Daddy Longleg
- Group
- Mites, harvestmen and other arachnids
- Peak month
- August
- Records since 2000
- 1,100
Daedalea quercina
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 445
Daedalea xantha
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 127
Dafa oliviella
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 54
Daffodil
- Group
- Flowering plants
- Peak month
- March
- Records since 2000
- 1,166
Dahlia Anemone
- Group
- Jellyfish, corals and anemones
- Peak month
- July
- Records since 2000
- 13,574
Dainty Bluet
- Group
- Dragonflies and damselflies
- Peak month
- June
- Records since 2000
- 169
Daisy
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 29,849
Daisy
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 583
Daisy Anemone
- Group
- Jellyfish, corals and anemones
- Peak month
- June
- Records since 2000
- 4,532
Daisy Rust
- Group
- Fungi
- Peak month
- April
- Records since 2000
- 1,467
Daldinia concentrica
- Group
- Fungi
- Peak month
- August
- Records since 2000
- 541
Daldinia vernicosa
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 82
Dalman's Leatherbug
- Group
- True bugs
- Peak month
- June
- Records since 2000
- 127
Dalmatian Pelican
- Group
- Birds
- Peak month
- May
- Records since 2000
- 93
Dalotia coriaria
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 77
Dame's-violet
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 1,377
Damsel ant bug
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 2,023
Damsel bug
- Group
- True bugs
- Peak month
- August
- Records since 2000
- 510
Dandelion
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 3,371
Dangling Swamp-lover
- Group
- True flies
- Peak month
- September
- Records since 2000
- 34,301
Danish Scurvygrass
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 3,402
Dannevig's Dragonfish
- Group
- Fish
- Peak month
- April
- Records since 2000
- 71
Dapple-mouthed Grimmia
- Group
- Mosses
- Peak month
- May
- Records since 2000
- 70
Daptonema furcatum
- Group
- Roundworms
- Peak month
- April
- Records since 2000
- 72
Daptonema hirsutum
- Group
- Roundworms
- Peak month
- May
- Records since 2000
- 101
Daptonema normandicum
- Group
- Roundworms
- Peak month
- May
- Records since 2000
- 60
Daptonema setosum
- Group
- Roundworms
- Peak month
- April
- Records since 2000
- 72
Daptonema tenuispiculum
- Group
- Roundworms
- Peak month
- November
- Records since 2000
- 66
Dark Arches
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 16,454
Dark Bordered Beauty
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 59
Dark Brocade
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 527
Dark Brown Cranefly
- Group
- True flies
- Peak month
- July
- Records since 2000
- 477
Dark brown speck lichen
- Group
- Fungi
- Peak month
- June
- Records since 2000
- 5,141
Dark Bush Cricket
- Group
- Grasshoppers and crickets
- Peak month
- August
- Records since 2000
- 12,688
Dark Chestnut
- Group
- Butterflies and moths
- Peak month
- October
- Records since 2000
- 625
Dark Crottle
- Group
- Lichens
- Peak month
- May
- Records since 2000
- 6,587
Dark dagger
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 159
Dark flour
- Group
- Beetles
- Peak month
- July
- Records since 2000
- 60
Dark Fruit-tree Tortrix
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 1,546
Dark giant horsefly
- Group
- True flies
- Peak month
- July
- Records since 2000
- 1,197
Dark Gray Boulder Lichen
- Group
- Lichens
- Peak month
- May
- Records since 2000
- 1,081
Dark Green Fritillary
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 61,080
Dark Groundling
- Group
- Butterflies and moths
- Peak month
- August
- Records since 2000
- 1,080
Dark leaved willow
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 81
Dark Marbled Carpet
- Group
- Butterflies and moths
- Peak month
- August
- Records since 2000
- 1,574
Dark Mullein
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 1,229
Dark Spectacle
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 958
Dark spinach
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 87
Dark Sword-grass
- Group
- Butterflies and moths
- Peak month
- August
- Records since 2000
- 1,433
Dark umber
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 409
Dark-barred Tortrix
- Group
- Butterflies and moths
- Peak month
- May
- Records since 2000
- 909
Dark-barred Twin-spot Carpet
- Group
- Butterflies and moths
- Peak month
- August
- Records since 2000
- 1,520
Dark-bracted Dandelion
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 58
Dark-footed harp ground beetle
- Group
- Beetles
- Peak month
- August
- Records since 2000
- 2,462
Dark-green Dandelion
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 93
Dark-green Flapwort
- Group
- Liverworts
- Peak month
- July
- Records since 2000
- 2,013
Dark-red Helleborine
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 200
Dark-saddled Leucozona
- Group
- True flies
- Peak month
- July
- Records since 2000
- 1,079
Dark-veined Emerald-bottle
- Group
- True flies
- Peak month
- July
- Records since 2000
- 216
Dark-winged Black
- Group
- True flies
- Peak month
- July
- Records since 2000
- 2,393
Dark-winged Chrysogaster
- Group
- True flies
- Peak month
- July
- Records since 2000
- 3,254
Dark-winged Flesh fly
- Group
- True flies
- Peak month
- June
- Records since 2000
- 601
Darkened Button Lichen
- Group
- Lichens
- Peak month
- June
- Records since 2000
- 2,926
Darparnaud's Glass Snail
- Group
- Molluscs
- Peak month
- April
- Records since 2000
- 843
Dartford Warbler
- Group
- Birds
- Peak month
- May
- Records since 2000
- 3,048
Darwin's barberry
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 454
Dasineura crataegi
- Group
- True flies
- Peak month
- September
- Records since 2000
- 243
Dasineura fraxinea
- Group
- True flies
- Peak month
- August
- Records since 2000
- 77
Dasineura fraxini
- Group
- True flies
- Peak month
- June
- Records since 2000
- 275
Dasineura kiefferiana
- Group
- True flies
- Peak month
- July
- Records since 2000
- 57
Dasineura plicatrix
- Group
- True flies
- Peak month
- September
- Records since 2000
- 144
Dasineura pteridis
- Group
- True flies
- Peak month
- July
- Records since 2000
- 130
Dasineura pustulans
- Group
- True flies
- Peak month
- August
- Records since 2000
- 303
Dasineura trifolii
- Group
- True flies
- Peak month
- September
- Records since 2000
- 53
Dasineura ulmaria
- Group
- True flies
- Peak month
- July
- Records since 2000
- 927
Dasybranchus caducus
- Group
- Worms (annelids)
- Peak month
- August
- Records since 2000
- 67
Dasyhelea incisurata
- Group
- True flies
- Peak month
- April
- Records since 2000
- 325
Dasyhelea saxicola
- Group
- True flies
- Peak month
- April
- Records since 2000
- 75
Dasyhelea turficola
- Group
- True flies
- Peak month
- June
- Records since 2000
- 52
Dasyphora cyanella
- Group
- True flies
- Peak month
- April
- Records since 2000
- 2,144
Dasyscyphella nivea
- Group
- Fungi
- Peak month
- April
- Records since 2000
- 242
Dasysyrphus pinastri
- Group
- True flies
- Peak month
- June
- Records since 2000
- 100
Dasytes aeratus
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 825
Dasytes plumbeus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 178
Date-Coloured Waxcap
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 73
Datonychus melanostictus
- Group
- Beetles
- Peak month
- July
- Records since 2000
- 163
Daubenton's Bat
- Group
- Mammals
- Peak month
- August
- Records since 2000
- 65,340
Davies' Cellophane Bee
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 700
Davis’s river diver
- Group
- Beetles
- Peak month
- April
- Records since 2000
- 120
Dawn redwood
- Group
- Conifers
- Peak month
- October
- Records since 2000
- 95
Dead Man's Fingers
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 1,186
Dead Men's Fingers
- Group
- Jellyfish, corals and anemones
- Peak month
- July
- Records since 2000
- 28,132
Dead Moll's Fingers
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 1,002
Dead-nettle leaf beetle
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 233
Deadly Nightshade
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 633
Deadman's finger
- Group
- Sponges
- Peak month
- August
- Records since 2000
- 2,367
Death watch beetle
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 193
Deathcap
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 621
Debaryomyces hansenii
- Group
- Fungi
- Peak month
- January
- Records since 2000
- 74
Deceiver
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 4,609
Deceiving Bolete
- Group
- Fungi
- Peak month
- August
- Records since 2000
- 122
December Moth
- Group
- Butterflies and moths
- Peak month
- November
- Records since 2000
- 1,667
Deceptive Earthtongue
- Group
- Fungi
- Peak month
- November
- Records since 2000
- 1,066
Deceptive Featherwort
- Group
- Liverworts
- Peak month
- February
- Records since 2000
- 763
Dechloromonas denitrificans
- Group
- Microorganisms and protists
- Peak month
- January
- Records since 2000
- 73
Deconica coprophila
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 180
Deconica horizontalis
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 279
Deconica inquilina
- Group
- Fungi
- Peak month
- November
- Records since 2000
- 70
Deconica montana
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 108
Deeplet Sea Anemone
- Group
- Jellyfish, corals and anemones
- Peak month
- August
- Records since 2000
- 564
Deer Ked
- Group
- True flies
- Peak month
- September
- Records since 2000
- 384
Deer Shield
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 2,660
Deergrass
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 3,568
Deflexilodes subnudus
- Group
- Crustaceans
- Peak month
- May
- Records since 2000
- 146
Deformed wing virus
- Group
- Microorganisms and protists
- Peak month
- August
- Records since 2000
- 163
Degeer's Thickjaw
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 1,024
Deinopsis erosa
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 51
Deleaster dichrous
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 154
Delia albula
- Group
- True flies
- Peak month
- June
- Records since 2000
- 79
Delia coarctata
- Group
- True flies
- Peak month
- July
- Records since 2000
- 125
Delia frontella
- Group
- True flies
- Peak month
- May
- Records since 2000
- 119
Delia lamelliseta
- Group
- True flies
- Peak month
- June
- Records since 2000
- 105
Delia penicillosa
- Group
- True flies
- Peak month
- July
- Records since 2000
- 58
Delicate
- Group
- Butterflies and moths
- Peak month
- September
- Records since 2000
- 327
Delicate Apple-capsid
- Group
- True bugs
- Peak month
- August
- Records since 2000
- 317
Delicate Earth-moss
- Group
- Mosses
- Peak month
- October
- Records since 2000
- 2,020
Delicate Germanderwort
- Group
- Liverworts
- Peak month
- July
- Records since 2000
- 2,119
Delicate Sedgesitter
- Group
- True flies
- Peak month
- June
- Records since 2000
- 872
Delicate Soldier
- Group
- True flies
- Peak month
- July
- Records since 2000
- 658
Delicate Tamarisk-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 1,113
Delicatula integrella
- Group
- Fungi
- Peak month
- January
- Records since 2000
- 159
Delphacodes venosus
- Group
- True bugs
- Peak month
- September
- Records since 2000
- 80
Delphax pulchellus
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 204
Delphinium ajacis
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 63
Delplanqueia dilutella
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 115
Deltalsia parasitica
- Group
- Seaweeds and algae
- Peak month
- August
- Records since 2000
- 285
Deltocephalus pulicaris
- Group
- True bugs
- Peak month
- August
- Records since 2000
- 256
Deltote uncula
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 174
Demeijerea rufipes
- Group
- True flies
- Peak month
- June
- Records since 2000
- 63
Demetrias atricapillus
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 3,443
Demetrias imperialis
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 581
Demetrias monostigma
- Group
- Beetles
- Peak month
- July
- Records since 2000
- 166
Demetrias monostigma
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 159
Demon Shrimp
- Group
- Crustaceans
- Peak month
- October
- Records since 2000
- 2,066
Dendrobaena attemsi
- Group
- Worms (annelids)
- Peak month
- May
- Records since 2000
- 276
Dendrobaena hortensis
- Group
- Worms (annelids)
- Peak month
- November
- Records since 2000
- 56
Dendrobaena octaedra
- Group
- Worms (annelids)
- Peak month
- April
- Records since 2000
- 436
Dendrobaena veneta
- Group
- Worms (annelids)
- Peak month
- March
- Records since 2000
- 79
Dendrocerus ramicornis
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 62
Dendrocoelum lacteum
- Group
- Flatworms
- Peak month
- September
- Records since 2000
- 187
Dendrographa decolorans
- Group
- Lichens
- Peak month
- February
- Records since 2000
- 1,107
Dendrophoma cytisporoides
- Group
- Fungi
- Peak month
- August
- Records since 2000
- 547
Dendrostoma leiphaemia
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 51
Dendrothele acerina
- Group
- Fungi
- Peak month
- November
- Records since 2000
- 135
Dendrothele citrisporella
- Group
- Fungi
- Peak month
- November
- Records since 2000
- 73
Dendroxena quadrimaculata
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 137
Dendryphion comosum
- Group
- Fungi
- Peak month
- May
- Records since 2000
- 108
Dengue fever mosquito
- Group
- True flies
- Peak month
- July
- Records since 2000
- 61
Dennisiella babingtonii
- Group
- Fungi
- Peak month
- March
- Records since 2000
- 179
Dense-flowered Fumitory
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 74
Dense-Flowered Orchid
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 74
Denseflowered mullein
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 53
Dentated pug
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 69
Dented Silk-moss
- Group
- Mosses
- Peak month
- April
- Records since 2000
- 2,324
Denticula tenuis
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 192
Deodar Cedar
- Group
- Conifers
- Peak month
- June
- Records since 2000
- 252
Deporaus betulae
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 83
Depressaria apiella
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 451
Depressaria badiella
- Group
- Butterflies and moths
- Peak month
- September
- Records since 2000
- 61
Depressaria radiella
- Group
- Butterflies and moths
- Peak month
- May
- Records since 2000
- 326
Depressed Feather-moss
- Group
- Mosses
- Peak month
- February
- Records since 2000
- 611
Depressed river mussel
- Group
- Molluscs
- Peak month
- September
- Records since 2000
- 338
Deptford pink
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 208
Deraeocoris flavilinea
- Group
- True bugs
- Peak month
- June
- Records since 2000
- 2,604
Deraeocoris lutescens
- Group
- True bugs
- Peak month
- August
- Records since 2000
- 2,268
Deraeocoris olivaceus
- Group
- True bugs
- Peak month
- June
- Records since 2000
- 68
Derbesia marina
- Group
- Seaweeds and algae
- Peak month
- July
- Records since 2000
- 54
Dermacentor reticulatus
- Group
- Mites, harvestmen and other arachnids
- Peak month
- March
- Records since 2000
- 225
Dermatocarpon meiophyllizum
- Group
- Fungi
- Peak month
- July
- Records since 2000
- 88
Dermestes murinus
- Group
- Beetles
- Peak month
- April
- Records since 2000
- 106
Dermoloma magicum
- Group
- Fungi
- Peak month
- January
- Records since 2000
- 63
Dermoloma pseudocuneifolium
- Group
- Fungi
- Peak month
- November
- Records since 2000
- 62
Deroceras agreste
- Group
- Molluscs
- Peak month
- August
- Records since 2000
- 87
Deroceras panormitanum
- Group
- Molluscs
- Peak month
- May
- Records since 2000
- 103
Derocrepis rufipes
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 108
Desarmillaria tabescens
- Group
- Fungi
- Peak month
- September
- Records since 2000
- 60
Desdemona ornata
- Group
- Worms (annelids)
- Peak month
- March
- Records since 2000
- 113
Desert Wheatear
- Group
- Birds
- Peak month
- November
- Records since 2000
- 724
Desmarestia ligulata
- Group
- Seaweeds and algae
- Peak month
- July
- Records since 2000
- 788
Desmarestia viridis
- Group
- Seaweeds and algae
- Peak month
- July
- Records since 2000
- 377
Desmodora pontica
- Group
- Roundworms
- Peak month
- November
- Records since 2000
- 53
Desmolaimus brasiliensis
- Group
- Roundworms
- Peak month
- April
- Records since 2000
- 76
Desmoscolex falcatus
- Group
- Roundworms
- Peak month
- November
- Records since 2000
- 50
Desmoulin's whorl snail
- Group
- Molluscs
- Peak month
- October
- Records since 2000
- 297
Desoria trispinata
- Group
- Springtails
- Peak month
- August
- Records since 2000
- 55
Desulfobacca acetoxidans
- Group
- Microorganisms and protists
- Peak month
- May
- Records since 2000
- 65
Desulfococcus biacutus
- Group
- Microorganisms and protists
- Peak month
- May
- Records since 2000
- 81
Desulfomonile tiedjei
- Group
- Microorganisms and protists
- Peak month
- January
- Records since 2000
- 93
Desulforegula conservatrix
- Group
- Microorganisms and protists
- Peak month
- May
- Records since 2000
- 72
Desulforhopalus singaporensis
- Group
- Microorganisms and protists
- Peak month
- October
- Records since 2000
- 64
Desulfotomaculum peckii
- Group
- Microorganisms and protists
- Peak month
- January
- Records since 2000
- 93
Deuteragenia variegata
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 151
Deuterosminthurus pallipes
- Group
- Springtails
- Peak month
- May
- Records since 2000
- 123
Devil leafhopper
- Group
- True bugs
- Peak month
- August
- Records since 2000
- 957
Devil's bolete
- Group
- Fungi
- Peak month
- August
- Records since 2000
- 53
Devil's Coach-horse
- Group
- Beetles
- Peak month
- September
- Records since 2000
- 1,098
Devil's Tooth
- Group
- Fungi
- Peak month
- August
- Records since 2000
- 1,809
Devil's-bit Scabious
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 11,742
Devonshire Cup-coral
- Group
- Jellyfish, corals and anemones
- Peak month
- July
- Records since 2000
- 12,047
Dew Moth
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 84
Dewberry
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 2,072
Dewdrop Bonnet
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 463
Dewdrop Mottlegill
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 826
Dewick’s plusia
- Group
- Butterflies and moths
- Peak month
- September
- Records since 2000
- 201
Dexamine spinosa
- Group
- Crustaceans
- Peak month
- September
- Records since 2000
- 762
Dexamine thea
- Group
- Crustaceans
- Peak month
- March
- Records since 2000
- 511
Dexia rustica
- Group
- True flies
- Peak month
- August
- Records since 2000
- 122
Dexiosoma caninum
- Group
- True flies
- Peak month
- July
- Records since 2000
- 1,157
Diadegma fenestrale
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 73
Diadegma sordipes
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 85
Diadumene cincta
- Group
- Jellyfish, corals and anemones
- Peak month
- July
- Records since 2000
- 285
Diadumene lineata
- Group
- Jellyfish, corals and anemones
- Peak month
- July
- Records since 2000
- 106
Diaea dorsata
- Group
- Spiders
- Peak month
- December
- Records since 2000
- 765
Dialineura anilis
- Group
- True flies
- Peak month
- June
- Records since 2000
- 126
Dialonectria episphaeria
- Group
- Fungi
- Peak month
- April
- Records since 2000
- 247
Dialychone collaris
- Group
- Worms (annelids)
- Peak month
- October
- Records since 2000
- 427
Dialychone dunerificta
- Group
- Worms (annelids)
- Peak month
- September
- Records since 2000
- 108
Dialytrichia saxicola
- Group
- Mosses
- Peak month
- December
- Records since 2000
- 62
Diamond Northern Caddisfly
- Group
- Caddisflies
- Peak month
- August
- Records since 2000
- 1,762
Diamond-back Marble
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 546
Diamond-backed Moth
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 4,928
Dianous coerulescens
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 69
Diaperis boleti
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 354
Diaphorodoris alba
- Group
- Molluscs
- Peak month
- June
- Records since 2000
- 66
Diaphorus nigricans
- Group
- True flies
- Peak month
- July
- Records since 2000
- 61
Diaphorus oculatus
- Group
- True flies
- Peak month
- July
- Records since 2000
- 56
Diaporthe arctii
- Group
- Fungi
- Peak month
- May
- Records since 2000
- 61
Diaporthe eres
- Group
- Fungi
- Peak month
- April
- Records since 2000
- 56
Diaporthe samaricola
- Group
- Fungi
- Peak month
- February
- Records since 2000
- 207
Diaporthopsis urticae
- Group
- Fungi
- Peak month
- April
- Records since 2000
- 74
Diapterobates humeralis
- Group
- Mites, harvestmen and other arachnids
- Peak month
- April
- Records since 2000
- 61
Diarthonis spadicea
- Group
- Lichens
- Peak month
- April
- Records since 2000
- 1,150
Diastata adusta
- Group
- True flies
- Peak month
- June
- Records since 2000
- 382
Diastata costata
- Group
- True flies
- Peak month
- June
- Records since 2000
- 89
Diastata fuscula
- Group
- True flies
- Peak month
- July
- Records since 2000
- 279
Diastrophus rubi
- Group
- Bees, wasps and ants
- Peak month
- April
- Records since 2000
- 99
Diastylis bradyi
- Group
- Crustaceans
- Peak month
- July
- Records since 2000
- 1,839
Diastylis cornuta
- Group
- Crustaceans
- Peak month
- October
- Records since 2000
- 295
Diastylis laevis
- Group
- Crustaceans
- Peak month
- June
- Records since 2000
- 1,593
Diastylis lucifera
- Group
- Crustaceans
- Peak month
- May
- Records since 2000
- 603
Diastylis rathkei
- Group
- Crustaceans
- Peak month
- June
- Records since 2000
- 373
Diastylis rugosa
- Group
- Crustaceans
- Peak month
- May
- Records since 2000
- 1,438
Diastylis tumida
- Group
- Crustaceans
- Peak month
- July
- Records since 2000
- 132
Diastyloides biplicatus
- Group
- Crustaceans
- Peak month
- March
- Records since 2000
- 654
Diatoma hyemalis
- Group
- Seaweeds and algae
- Peak month
- April
- Records since 2000
- 725
Diatoma moniliformis
- Group
- Seaweeds and algae
- Peak month
- April
- Records since 2000
- 222
Diatoma problematica
- Group
- Seaweeds and algae
- Peak month
- April
- Records since 2000
- 63
Diatoma tenuis
- Group
- Seaweeds and algae
- Peak month
- April
- Records since 2000
- 262
Diatoma vulgaris
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 698
Diatrype bullata
- Group
- Fungi
- Peak month
- April
- Records since 2000
- 337
Diatrypella favacea
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 428
Dicallomera fascelina
- Group
- Butterflies and moths
- Peak month
- May
- Records since 2000
- 96
Dichaeta caudata
- Group
- True flies
- Peak month
- June
- Records since 2000
- 117
Dicheirotrichus gustavii
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 486
Dicheirotrichus obsoletus
- Group
- Beetles
- Peak month
- September
- Records since 2000
- 175
Dicheirotrichus placidus
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 600
Dichelopandalus bonnieri
- Group
- Crustaceans
- Peak month
- March
- Records since 2000
- 103
Dichetophora obliterata
- Group
- True flies
- Peak month
- July
- Records since 2000
- 129
Dichomeris marginella
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 128
Dichonia aprilina
- Group
- Butterflies and moths
- Peak month
- October
- Records since 2000
- 76
Dichoporis phaea
- Group
- Fungi
- Peak month
- January
- Records since 2000
- 61
Dichrogaster longicaudata
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 60
Dichrorampha acuminatana
- Group
- Butterflies and moths
- Peak month
- August
- Records since 2000
- 197
Dichrorampha alpinana
- Group
- Butterflies and moths
- Peak month
- June
- Records since 2000
- 149
Dichrorampha petiverella
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 157
Dichrorampha simpliciana
- Group
- Butterflies and moths
- Peak month
- August
- Records since 2000
- 58
Dichrorampha vancouverana
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 74
Dicloster acuatus
- Group
- Seaweeds and algae
- Peak month
- January
- Records since 2000
- 80
Dicraeus fennicus
- Group
- True flies
- Peak month
- July
- Records since 2000
- 100
Dicraeus vagans
- Group
- True flies
- Peak month
- June
- Records since 2000
- 1,032
Dicranella moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 180
Dicranella moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 125
Dicranocephalus agilis
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 381
Dicranocephalus medius
- Group
- True bugs
- Peak month
- May
- Records since 2000
- 166
Dicranodontium moss
- Group
- Mosses
- Peak month
- June
- Records since 2000
- 169
Dicranomyia aquosa
- Group
- True flies
- Peak month
- June
- Records since 2000
- 65
Dicranomyia autumnalis
- Group
- True flies
- Peak month
- July
- Records since 2000
- 585
Dicranomyia chorea
- Group
- True flies
- Peak month
- April
- Records since 2000
- 2,007
Dicranomyia danica
- Group
- True flies
- Peak month
- June
- Records since 2000
- 62
Dicranomyia didyma
- Group
- True flies
- Peak month
- June
- Records since 2000
- 192
Dicranomyia distendens
- Group
- True flies
- Peak month
- June
- Records since 2000
- 51
Dicranomyia fusca
- Group
- True flies
- Peak month
- May
- Records since 2000
- 664
Dicranomyia goritiensis
- Group
- True flies
- Peak month
- June
- Records since 2000
- 250
Dicranomyia lucida
- Group
- True flies
- Peak month
- June
- Records since 2000
- 201
Dicranomyia lutea
- Group
- True flies
- Peak month
- May
- Records since 2000
- 140
Dicranomyia mitis
- Group
- True flies
- Peak month
- May
- Records since 2000
- 325
Dicranomyia modesta
- Group
- True flies
- Peak month
- October
- Records since 2000
- 2,095
Dicranomyia morio
- Group
- True flies
- Peak month
- July
- Records since 2000
- 490
Dicranomyia quadra
- Group
- True flies
- Peak month
- May
- Records since 2000
- 50
Dicranomyia sera
- Group
- True flies
- Peak month
- July
- Records since 2000
- 191
Dicranomyia sericata
- Group
- True flies
- Peak month
- May
- Records since 2000
- 118
Dicranomyia ventralis
- Group
- True flies
- Peak month
- June
- Records since 2000
- 76
Dicranopalpus larvatus
- Group
- Mites, harvestmen and other arachnids
- Peak month
- December
- Records since 2000
- 132
Dicranopalpus ramosus
- Group
- Mites, harvestmen and other arachnids
- Peak month
- August
- Records since 2000
- 1,082
Dicranophragma adjunctum
- Group
- True flies
- Peak month
- May
- Records since 2000
- 442
Dicranophragma nemorale
- Group
- True flies
- Peak month
- June
- Records since 2000
- 1,116
Dicranophragma separatum
- Group
- True flies
- Peak month
- June
- Records since 2000
- 88
Dicranota bimaculata
- Group
- True flies
- Peak month
- June
- Records since 2000
- 202
Dicranota claripennis
- Group
- True flies
- Peak month
- June
- Records since 2000
- 311
Dicranota pavida
- Group
- True flies
- Peak month
- May
- Records since 2000
- 331
Dicranota subtilis
- Group
- True flies
- Peak month
- May
- Records since 2000
- 129
Dicranotropis hamata
- Group
- True bugs
- Peak month
- June
- Records since 2000
- 311
Dicranum moss
- Group
- Mosses
- Peak month
- August
- Records since 2000
- 86
Dicranum moss
- Group
- Mosses
- Peak month
- February
- Records since 2000
- 53
Dicranum scottianum
- Group
- Mosses
- Peak month
- June
- Records since 2000
- 318
Dicrotendipes modestus
- Group
- True flies
- Peak month
- May
- Records since 2000
- 96
Dicrotendipes nervosus
- Group
- True flies
- Peak month
- July
- Records since 2000
- 101
Dictyla convergens
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 102
Dictyna arundinacea
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 290
Dictyna uncinata
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 229
Dictyocha fibula
- Group
- Seaweeds and algae
- Peak month
- October
- Records since 2000
- 111
Dictyonota strichnocera
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 145
Dictyonota tricornis
- Group
- True bugs
- Peak month
- June
- Records since 2000
- 188
Dictyosiphon foeniculaceus
- Group
- Seaweeds and algae
- Peak month
- May
- Records since 2000
- 72
Dicymbium nigrum
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 149
Dicymbium tibiale
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 65
Dicyphus annulatus
- Group
- True bugs
- Peak month
- September
- Records since 2000
- 192
Dicyphus epilobii
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 677
Dicyphus errans
- Group
- True bugs
- Peak month
- June
- Records since 2000
- 249
Dicyphus globulifer
- Group
- True bugs
- Peak month
- May
- Records since 2000
- 180
Dicyphus pallicornis
- Group
- True bugs
- Peak month
- June
- Records since 2000
- 198
Dicyphus stachydis
- Group
- True bugs
- Peak month
- May
- Records since 2000
- 593
Dicyphus tamaninii
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 57
Dicyrtoma fusca
- Group
- Springtails
- Peak month
- December
- Records since 2000
- 172
Dicyrtomina minuta
- Group
- Springtails
- Peak month
- November
- Records since 2000
- 95
Dicyrtomina ornata
- Group
- Springtails
- Peak month
- December
- Records since 2000
- 337
Dicyrtomina saundersi
- Group
- Springtails
- Peak month
- December
- Records since 2000
- 1,088
Didea fasciata
- Group
- True flies
- Peak month
- August
- Records since 2000
- 656
Didemnum coriaceum
- Group
- Sea squirts
- Peak month
- September
- Records since 2000
- 97
Didemnum fulgens
- Group
- Sea squirts
- Peak month
- August
- Records since 2000
- 64
Didemnum maculosum
- Group
- Sea squirts
- Peak month
- August
- Records since 2000
- 1,713
Didemnum vexillum
- Group
- Sea squirts
- Peak month
- April
- Records since 2000
- 244
Didier's tulip
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 105
Didymella fucicola
- Group
- Fungi
- Peak month
- August
- Records since 2000
- 1,080
Didymium squamulosum
- Group
- Microorganisms and protists
- Peak month
- October
- Records since 2000
- 131
Didymodon acutus
- Group
- Mosses
- Peak month
- December
- Records since 2000
- 61
Didymogenes soliella
- Group
- Seaweeds and algae
- Peak month
- January
- Records since 2000
- 57
Didymomyia tiliacea
- Group
- True flies
- Peak month
- June
- Records since 2000
- 52
Digger small dung beetle
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 627
Digging pedunculate ground beetle
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 966
Diglyphus isaea
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 154
Dikoleps nitens
- Group
- Molluscs
- Peak month
- April
- Records since 2000
- 149
Dikraneura variata
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 129
Dilated Scalewort
- Group
- Liverworts
- Peak month
- March
- Records since 2000
- 23,654
Dilophus femoratus
- Group
- True flies
- Peak month
- May
- Records since 2000
- 517
Dilta hibernica
- Group
- Other insects
- Peak month
- July
- Records since 2000
- 73
Dilta littoralis
- Group
- Other insects
- Peak month
- June
- Records since 2000
- 88
Diminutive Goby
- Group
- Fish
- Peak month
- August
- Records since 2000
- 152
Dinaraea aequata
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 110
Dinaraea angustula
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 55
Dinera carinifrons
- Group
- True flies
- Peak month
- July
- Records since 2000
- 55
Dinera grisescens
- Group
- True flies
- Peak month
- July
- Records since 2000
- 197
Dingy Dowd
- Group
- Butterflies and moths
- Peak month
- August
- Records since 2000
- 6,293
Dingy Footman
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 4,648
Dingy shell
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 377
Dingy Skipper
- Group
- Butterflies and moths
- Peak month
- May
- Records since 2000
- 56,840
Dingy Waxcap
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 136
Dinocampus coccinellae
- Group
- Bees, wasps and ants
- Peak month
- May
- Records since 2000
- 149
Dinocras cephalotes
- Group
- Stoneflies
- Peak month
- April
- Records since 2000
- 442
Dinophysis acuminata
- Group
- Microorganisms and protists
- Peak month
- July
- Records since 2000
- 553
Dinophysis acuta
- Group
- Microorganisms and protists
- Peak month
- August
- Records since 2000
- 452
Dinophysis norvegica
- Group
- Microorganisms and protists
- Peak month
- July
- Records since 2000
- 84
Dinophysis tripos
- Group
- Microorganisms and protists
- Peak month
- August
- Records since 2000
- 336
Dioctria cothurnata
- Group
- True flies
- Peak month
- July
- Records since 2000
- 73
Dioctria hyalipennis
- Group
- True flies
- Peak month
- June
- Records since 2000
- 182
Dioctria oelandica
- Group
- True flies
- Peak month
- May
- Records since 2000
- 115
Dioctria rufipes
- Group
- True flies
- Peak month
- June
- Records since 2000
- 2,206
Dioctria rufipes
- Group
- True flies
- Peak month
- May
- Records since 2000
- 98
Diodontus minutus
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 94
Diodora graeca
- Group
- Molluscs
- Peak month
- August
- Records since 2000
- 455
Dioecious Sedge
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 717
Diogenes pugilator
- Group
- Crustaceans
- Peak month
- September
- Records since 2000
- 122
Diogma glabrata
- Group
- True flies
- Peak month
- July
- Records since 2000
- 161
Dioplosyllis cirrosa
- Group
- Worms (annelids)
- Peak month
- August
- Records since 2000
- 320
Dioryctria abietella
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 215
Dioryctria mutatella
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 97
Dioxyna bidentis
- Group
- True flies
- Peak month
- July
- Records since 2000
- 117
Diphasia attenuata
- Group
- Jellyfish, corals and anemones
- Peak month
- August
- Records since 2000
- 125
Diphasia fallax
- Group
- Jellyfish, corals and anemones
- Peak month
- August
- Records since 2000
- 72
Diphasia margareta
- Group
- Jellyfish, corals and anemones
- Peak month
- May
- Records since 2000
- 244
Diphasia rosacea
- Group
- Jellyfish, corals and anemones
- Peak month
- June
- Records since 2000
- 219
Diphyus quadripunctorius
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 59
Diplapion confluens
- Group
- Beetles
- Peak month
- September
- Records since 2000
- 52
Diplapion stolidum
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 56
Diplazon laetatorius
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 278
Diplectrona felix
- Group
- Caddisflies
- Peak month
- June
- Records since 2000
- 1,523
Diplocarpon fragariae
- Group
- Fungi
- Peak month
- August
- Records since 2000
- 64
Diplocarpon rosae
- Group
- Fungi
- Peak month
- September
- Records since 2000
- 238
Diplocephalus latifrons
- Group
- Spiders
- Peak month
- January
- Records since 2000
- 160
Diplocephalus permixtus
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 156
Diplocephalus picinus
- Group
- Spiders
- Peak month
- May
- Records since 2000
- 89
Diplocirrus glaucus
- Group
- Worms (annelids)
- Peak month
- June
- Records since 2000
- 8,807
Diplocirrus stopbowitzi
- Group
- Worms (annelids)
- Peak month
- August
- Records since 2000
- 367
Diplocoelus fagi
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 178
Diplocolenus abdominalis
- Group
- True bugs
- Peak month
- June
- Records since 2000
- 58
Diplodonta rotundata
- Group
- Molluscs
- Peak month
- August
- Records since 2000
- 1,112
Diplolepis nervosa
- Group
- Bees, wasps and ants
- Peak month
- August
- Records since 2000
- 176
Diplolepis spinosissimae
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 121
Diplonevra concinna
- Group
- True flies
- Peak month
- September
- Records since 2000
- 135
Diplonevra funebris
- Group
- True flies
- Peak month
- August
- Records since 2000
- 381
Diplonevra nitidula
- Group
- True flies
- Peak month
- July
- Records since 2000
- 924
Diplonevra pilosella
- Group
- True flies
- Peak month
- August
- Records since 2000
- 459
Diplophyllum obtusifolium
- Group
- Liverworts
- Peak month
- March
- Records since 2000
- 256
Diploschistes caesioplumbeus
- Group
- Lichens
- Peak month
- May
- Records since 2000
- 58
Diplosolen obelium
- Group
- Bryozoans
- Peak month
- August
- Records since 2000
- 170
Diplosoma spongiforme
- Group
- Sea squirts
- Peak month
- August
- Records since 2000
- 2,224
Diplostyla concolor
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 172
Diplotomma chlorophaeum
- Group
- Lichens
- Peak month
- May
- Records since 2000
- 64
Diplotomma hedinii
- Group
- Lichens
- Peak month
- July
- Records since 2000
- 52
Dipolydora caulleryi
- Group
- Worms (annelids)
- Peak month
- August
- Records since 2000
- 4,146
Dipolydora coeca
- Group
- Worms (annelids)
- Peak month
- August
- Records since 2000
- 6,466
Dipolydora flava
- Group
- Worms (annelids)
- Peak month
- August
- Records since 2000
- 1,935
Dipolydora quadrilobata
- Group
- Worms (annelids)
- Peak month
- May
- Records since 2000
- 1,269
Dipolydora saintjosephi
- Group
- Worms (annelids)
- Peak month
- August
- Records since 2000
- 124
Dipolydora socialis
- Group
- Worms (annelids)
- Peak month
- January
- Records since 2000
- 345
Diprion pini
- Group
- Bees, wasps and ants
- Peak month
- August
- Records since 2000
- 121
Dirina massiliensis
- Group
- Lichens
- Peak month
- June
- Records since 2000
- 1,615
Dirty Sea-squirt
- Group
- Sea squirts
- Peak month
- September
- Records since 2000
- 5,013
Disc granular lichen
- Group
- Lichens
- Peak month
- October
- Records since 2000
- 368
Disc lichen
- Group
- Lichens
- Peak month
- September
- Records since 2000
- 1,386
Disc lichen
- Group
- Lichens
- Peak month
- May
- Records since 2000
- 1,080
Disc lichen
- Group
- Lichens
- Peak month
- May
- Records since 2000
- 364
Disc lichen
- Group
- Lichens
- Peak month
- September
- Records since 2000
- 156
Disc lichen
- Group
- Lichens
- Peak month
- July
- Records since 2000
- 75
Disc lichen
- Group
- Lichens
- Peak month
- January
- Records since 2000
- 61
Disciotis venosa
- Group
- Fungi
- Peak month
- April
- Records since 2000
- 96
Discocerina obscurella
- Group
- True flies
- Peak month
- June
- Records since 2000
- 69
Discomedusa lobata
- Group
- Jellyfish, corals and anemones
- Peak month
- November
- Records since 2000
- 50
Discomyza incurva
- Group
- True flies
- Peak month
- July
- Records since 2000
- 133
Dismodicus bifrons
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 264
Disphyma crassifolium
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 78
Disporella hispida
- Group
- Bryozoans
- Peak month
- August
- Records since 2000
- 3,873
Dissodinium pseudolunula
- Group
- Microorganisms and protists
- Peak month
- May
- Records since 2000
- 52
Distant Sedge
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 265
Distaplia rosea
- Group
- Sea squirts
- Peak month
- July
- Records since 2000
- 436
Distinct map lichen
- Group
- Lichens
- Peak month
- August
- Records since 2000
- 124
Dithryca guttularis
- Group
- True flies
- Peak month
- June
- Records since 2000
- 75
Ditrichocorycaeus anglicus
- Group
- Crustaceans
- Peak month
- September
- Records since 2000
- 195
Ditrichophora calceata
- Group
- True flies
- Peak month
- June
- Records since 2000
- 112
Ditrichophora fuscella
- Group
- True flies
- Peak month
- June
- Records since 2000
- 72
Ditrichum moss
- Group
- Mosses
- Peak month
- June
- Records since 2000
- 126
Ditrichum zonatum
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 240
Ditrupa arietina
- Group
- Worms (annelids)
- Peak month
- August
- Records since 2000
- 377
Dittander
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 491
Ditylum brightwellii
- Group
- Seaweeds and algae
- Peak month
- April
- Records since 2000
- 1,872
Diura bicaudata
- Group
- Stoneflies
- Peak month
- April
- Records since 2000
- 105
Diurnea fagella
- Group
- Butterflies and moths
- Peak month
- March
- Records since 2000
- 1,178
Diurnea fagella
- Group
- Butterflies and moths
- Peak month
- March
- Records since 2000
- 271
Diurnea lipsiella
- Group
- Butterflies and moths
- Peak month
- October
- Records since 2000
- 57
Divided Sedge
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 107
Diving bell spider
- Group
- Spiders
- Peak month
- July
- Records since 2000
- 199
Dixa nebulosa
- Group
- True flies
- Peak month
- September
- Records since 2000
- 110
Dixa nubilipennis
- Group
- True flies
- Peak month
- June
- Records since 2000
- 88
Dixa puberula
- Group
- True flies
- Peak month
- September
- Records since 2000
- 128
Dixa submaculata
- Group
- True flies
- Peak month
- May
- Records since 2000
- 57
Dixella aestivalis
- Group
- True flies
- Peak month
- August
- Records since 2000
- 87
Dixella amphibia
- Group
- True flies
- Peak month
- June
- Records since 2000
- 136
Dixella autumnalis
- Group
- True flies
- Peak month
- June
- Records since 2000
- 314
Dixella martinii
- Group
- True flies
- Peak month
- June
- Records since 2000
- 63
Dixella serotina
- Group
- True flies
- Peak month
- June
- Records since 2000
- 187
Dixon's Thread-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 56
Dodder
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 503
Dodecaceria concharum
- Group
- Worms (annelids)
- Peak month
- July
- Records since 2000
- 97
Dog Lichen
- Group
- Lichens
- Peak month
- May
- Records since 2000
- 145
Dog Stinkhorn
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 508
Dog Vomit Slime Mould
- Group
- Microorganisms and protists
- Peak month
- November
- Records since 2000
- 518
Dog Whelk
- Group
- Molluscs
- Peak month
- August
- Records since 2000
- 8,771
Dog's Mercury
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 18,728
Dog's Mercury Rust
- Group
- Fungi
- Peak month
- April
- Records since 2000
- 532
Dog-cockle
- Group
- Molluscs
- Peak month
- August
- Records since 2000
- 3,971
Dog-rose
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 7,677
Dogwood
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 10,200
Dogwood Aphid
- Group
- True bugs
- Peak month
- September
- Records since 2000
- 184
Dolerus aeneus
- Group
- Bees, wasps and ants
- Peak month
- May
- Records since 2000
- 302
Dolerus aericeps
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 268
Dolerus cothurnatus
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 58
Dolerus ferrugatus
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 89
Dolerus fumosus
- Group
- Bees, wasps and ants
- Peak month
- May
- Records since 2000
- 153
Dolerus germanicus
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 86
Dolerus gonager
- Group
- Bees, wasps and ants
- Peak month
- May
- Records since 2000
- 167
Dolerus haematodes
- Group
- Bees, wasps and ants
- Peak month
- April
- Records since 2000
- 101
Dolerus madidus
- Group
- Bees, wasps and ants
- Peak month
- April
- Records since 2000
- 88
Dolerus niger
- Group
- Bees, wasps and ants
- Peak month
- May
- Records since 2000
- 118
Dolerus nigratus
- Group
- Bees, wasps and ants
- Peak month
- May
- Records since 2000
- 376
Dolerus picipes
- Group
- Bees, wasps and ants
- Peak month
- May
- Records since 2000
- 219
Dolerus puncticollis
- Group
- Bees, wasps and ants
- Peak month
- April
- Records since 2000
- 60
Dolerus varispinus
- Group
- Bees, wasps and ants
- Peak month
- April
- Records since 2000
- 62
Dolerus vestigialis
- Group
- Bees, wasps and ants
- Peak month
- May
- Records since 2000
- 160
Dolichocephala guttata
- Group
- True flies
- Peak month
- June
- Records since 2000
- 152
Dolichocephala irrorata
- Group
- True flies
- Peak month
- June
- Records since 2000
- 182
Dolichopeza albipes
- Group
- True flies
- Peak month
- May
- Records since 2000
- 387
Dolichopus atratus
- Group
- True flies
- Peak month
- June
- Records since 2000
- 338
Dolichopus atripes
- Group
- True flies
- Peak month
- July
- Records since 2000
- 238
Dolichopus atritibialis
- Group
- True flies
- Peak month
- June
- Records since 2000
- 130
Dolichopus brevipennis
- Group
- True flies
- Peak month
- June
- Records since 2000
- 274
Dolichopus campestris
- Group
- True flies
- Peak month
- June
- Records since 2000
- 104
Dolichopus clavipes
- Group
- True flies
- Peak month
- June
- Records since 2000
- 89
Dolichopus diadema
- Group
- True flies
- Peak month
- July
- Records since 2000
- 289
Dolichopus festivus
- Group
- True flies
- Peak month
- July
- Records since 2000
- 553
Dolichopus griseipennis
- Group
- True flies
- Peak month
- August
- Records since 2000
- 375
Dolichopus latilimbatus
- Group
- True flies
- Peak month
- June
- Records since 2000
- 173
Dolichopus lepidus
- Group
- True flies
- Peak month
- June
- Records since 2000
- 88
Dolichopus longicornis
- Group
- True flies
- Peak month
- July
- Records since 2000
- 68
Dolichopus longitarsis
- Group
- True flies
- Peak month
- July
- Records since 2000
- 149
Dolichopus metallica
- Group
- True flies
- Peak month
- June
- Records since 2000
- 112
Dolichopus nigricornis
- Group
- True flies
- Peak month
- June
- Records since 2000
- 216
Dolichopus notatus
- Group
- True flies
- Peak month
- June
- Records since 2000
- 53
Dolichopus nubilus
- Group
- True flies
- Peak month
- July
- Records since 2000
- 713
Dolichopus pennatus
- Group
- True flies
- Peak month
- June
- Records since 2000
- 227
Dolichopus picipes
- Group
- True flies
- Peak month
- June
- Records since 2000
- 129
Dolichopus plumipes
- Group
- True flies
- Peak month
- June
- Records since 2000
- 870
Dolichopus popularis
- Group
- True flies
- Peak month
- June
- Records since 2000
- 435
Dolichopus propinquus
- Group
- True flies
- Peak month
- July
- Records since 2000
- 563
Dolichopus sabinus
- Group
- True flies
- Peak month
- July
- Records since 2000
- 66
Dolichopus signatus
- Group
- True flies
- Peak month
- June
- Records since 2000
- 171
Dolichopus simplex
- Group
- True flies
- Peak month
- June
- Records since 2000
- 326
Dolichopus spretus
- Group
- True flies
- Peak month
- June
- Records since 2000
- 265
Dolichopus strigipes
- Group
- True flies
- Peak month
- July
- Records since 2000
- 65
Dolichopus subpennatus
- Group
- True flies
- Peak month
- June
- Records since 2000
- 77
Dolichopus ungulatus
- Group
- True flies
- Peak month
- June
- Records since 2000
- 1,145
Dolichopus wahlbergi
- Group
- True flies
- Peak month
- June
- Records since 2000
- 131
Dolichosciara flavipes
- Group
- True flies
- Peak month
- June
- Records since 2000
- 281
Dolichosoma lineare
- Group
- Beetles
- Peak month
- July
- Records since 2000
- 67
Doll Eualid
- Group
- Crustaceans
- Peak month
- August
- Records since 2000
- 869
Domestic Cattle
- Group
- Mammals
- Peak month
- October
- Records since 2000
- 357
Domestic goat
- Group
- Mammals
- Peak month
- March
- Records since 2000
- 508
Domestic Horse
- Group
- Mammals
- Peak month
- August
- Records since 2000
- 106
Domestic Sheep
- Group
- Mammals
- Peak month
- April
- Records since 2000
- 265
Donacaula forficella
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 293
Donacia clavipes
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 253
Donacia semicuprea
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 374
Donacia versicolorea
- Group
- Beetles
- Peak month
- August
- Records since 2000
- 272
Donacochara speciosa
- Group
- Spiders
- Peak month
- June
- Records since 2000
- 107
Donn's Grimmia
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 1,173
Dor Beetle
- Group
- Beetles
- Peak month
- September
- Records since 2000
- 1,352
Doratura stylata
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 143
Dorcatoma chrysomelina
- Group
- Beetles
- Peak month
- July
- Records since 2000
- 168
Dorcatoma flavicornis
- Group
- Beetles
- Peak month
- July
- Records since 2000
- 103
Dorvillea rubrovittata
- Group
- Worms (annelids)
- Peak month
- August
- Records since 2000
- 137
Dorycera aquatica
- Group
- True flies
- Peak month
- May
- Records since 2000
- 231
Dorylaimopsis punctata
- Group
- Roundworms
- Peak month
- April
- Records since 2000
- 54
Dorytomus dejeani
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 81
Dorytomus longimanus
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 114
Dorytomus melanophthalmus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 73
Dorytomus rufatus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 83
Dorytomus taeniatus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 375
Dorytomus tortrix
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 89
Dosima fascicularis
- Group
- Crustaceans
- Peak month
- August
- Records since 2000
- 60
Dot Ladybird
- Group
- Beetles
- Peak month
- August
- Records since 2000
- 952
Dot lichen
- Group
- Lichens
- Peak month
- May
- Records since 2000
- 1,238
Dot lichen
- Group
- Lichens
- Peak month
- July
- Records since 2000
- 1,072
Dot lichen
- Group
- Lichens
- Peak month
- May
- Records since 2000
- 775
Dot lichen
- Group
- Lichens
- Peak month
- May
- Records since 2000
- 757
Dot lichen
- Group
- Lichens
- Peak month
- May
- Records since 2000
- 399
Dot lichen
- Group
- Lichens
- Peak month
- May
- Records since 2000
- 183
Dot lichen
- Group
- Lichens
- Peak month
- June
- Records since 2000
- 162
Dot lichen
- Group
- Lichens
- Peak month
- March
- Records since 2000
- 140
Dot lichen
- Group
- Lichens
- Peak month
- June
- Records since 2000
- 109
Dot Moth
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 1,111
Dothidella ulmi
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 93
Doto coronata
- Group
- Molluscs
- Peak month
- June
- Records since 2000
- 179
Doto dunnei
- Group
- Molluscs
- Peak month
- June
- Records since 2000
- 69
Doto fragilis
- Group
- Molluscs
- Peak month
- June
- Records since 2000
- 392
Doto millbayana
- Group
- Molluscs
- Peak month
- June
- Records since 2000
- 68
Doto pinnatifida
- Group
- Molluscs
- Peak month
- June
- Records since 2000
- 309
Doto tuberculata
- Group
- Molluscs
- Peak month
- June
- Records since 2000
- 64
Dotted Bee-fly
- Group
- True flies
- Peak month
- April
- Records since 2000
- 2,727
Dotted borded wave
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 52
Dotted Border
- Group
- Butterflies and moths
- Peak month
- March
- Records since 2000
- 1,631
Dotted carpet
- Group
- Butterflies and moths
- Peak month
- August
- Records since 2000
- 295
Dotted chestnut
- Group
- Butterflies and moths
- Peak month
- April
- Records since 2000
- 196
Dotted Clay
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 2,960
Dotted fan-foot
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 180
Dotted Fanvault
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 74
Dotted lichen
- Group
- Lichens
- Peak month
- November
- Records since 2000
- 329
Dotted lichen
- Group
- Lichens
- Peak month
- July
- Records since 2000
- 116