Peronospora ficariae
- Group
- Microorganisms and protists
- Records since 2000
- 285
- Peak month
- April
Dwarf Cherry
- Group
- Flowering plants
- Records since 2000
- 284
- Scientific name
- Prunus cerasus
Habrophlebia fusca
- Group
- Mayflies
- Records since 2000
- 284
- Peak month
- April
Megaselia subtumida
- Group
- True flies
- Records since 2000
- 283
- Peak month
- April
Podosira stelligera
- Group
- Seaweeds and algae
- Records since 2000
- 282
- Peak month
- April
A Lichen
- Group
- Lichens
- Records since 2000
- 281
- Scientific name
- Cliostomum flavidulum
Perinereis cultrifera
- Group
- Worms (annelids)
- Records since 2000
- 281
- Peak month
- April
Fragile beard lichen
- Group
- Lichens
- Records since 2000
- 277
- Scientific name
- Usnea fragilescens
Allogamus auricollis
- Group
- Caddisflies
- Records since 2000
- 276
- Peak month
- April
Syllides japonicus
- Group
- Worms (annelids)
- Records since 2000
- 276
- Peak month
- April
Heterotanytarsus apicalis
- Group
- True flies
- Records since 2000
- 275
- Peak month
- April
Paraphaenocladius pseudirritus
- Group
- True flies
- Records since 2000
- 275
- Peak month
- April
Paraleptophlebia submarginata
- Group
- Mayflies
- Records since 2000
- 273
- Peak month
- April
Psychoda minuta
- Group
- True flies
- Records since 2000
- 273
- Peak month
- April
Black lace-weaver
- Group
- Spiders
- Records since 2000
- 272
- Scientific name
- Amaurobius ferox
Amaurobius similis
- Group
- Spiders
- Records since 2000
- 271
- Peak month
- April
Aphodius pedellus
- Group
- Beetles
- Records since 2000
- 271
- Peak month
- April
Micropsectra atrofasciata
- Group
- True flies
- Records since 2000
- 271
- Peak month
- April
Weigel's bryum moss
- Group
- Mosses
- Records since 2000
- 271
- Scientific name
- Bryum weigelii
Domestic Sheep
- Group
- Mammals
- Records since 2000
- 265
- Scientific name
- Ovis aries
Bufflehead
- Group
- Birds
- Records since 2000
- 262
- Scientific name
- Bucephala albeola
Diatoma tenuis
- Group
- Seaweeds and algae
- Records since 2000
- 262
- Peak month
- April
Early Meadow-grass
- Group
- Flowering plants
- Records since 2000
- 262
- Scientific name
- Poa infirma
Bathyporeia nana
- Group
- Crustaceans
- Records since 2000
- 258
- Peak month
- April
Hygroamblystegium varium
- Group
- Mosses
- Records since 2000
- 258
- Peak month
- April
Haploops tubicola
- Group
- Crustaceans
- Records since 2000
- 256
- Peak month
- April
Lasiomma strigilatum
- Group
- True flies
- Records since 2000
- 256
- Peak month
- April
Parmelina pastillifera
- Group
- Lichens
- Records since 2000
- 256
- Peak month
- April
Strobilurus tenacellus
- Group
- Fungi
- Records since 2000
- 256
- Peak month
- April
Callicorixa wollastoni
- Group
- True bugs
- Records since 2000
- 254
- Peak month
- April
Fannia mollissima
- Group
- True flies
- Records since 2000
- 253
- Peak month
- April
Leptophlebia marginata
- Group
- Mayflies
- Records since 2000
- 253
- Peak month
- April
Leucophora obtusa
- Group
- True flies
- Records since 2000
- 252
- Peak month
- April
Limnophila schranki
- Group
- True flies
- Records since 2000
- 251
- Peak month
- April
Monterey cypress
- Group
- Conifers
- Records since 2000
- 251
- Scientific name
- Cupressus macrocarpa
A Mining Bee
- Group
- Bees, wasps and ants
- Records since 2000
- 250
- Scientific name
- Andrena ruficrus
Orchesella villosa
- Group
- Springtails
- Records since 2000
- 250
- Peak month
- April
Ascodichaena rugosa
- Group
- Fungi
- Records since 2000
- 249
- Peak month
- April
Resinicium bicolor
- Group
- Fungi
- Records since 2000
- 248
- Peak month
- April
Dialonectria episphaeria
- Group
- Fungi
- Records since 2000
- 247
- Peak month
- April
Polycelis nigra
- Group
- Flatworms
- Records since 2000
- 247
- Peak month
- April
Cricotopus bicinctus
- Group
- True flies
- Records since 2000
- 246
- Peak month
- April
Didemnum vexillum
- Group
- Sea squirts
- Records since 2000
- 244
- Peak month
- April
Puccinia buxi
- Group
- Fungi
- Records since 2000
- 244
- Peak month
- April
Psychoda sigma
- Group
- True flies
- Records since 2000
- 243
- Peak month
- April
Dasyscyphella nivea
- Group
- Fungi
- Records since 2000
- 242
- Peak month
- April
Mycosphaerella punctiformis
- Group
- Fungi
- Records since 2000
- 242
- Peak month
- April
Pasqueflower
- Group
- Flowering plants
- Records since 2000
- 242
- Scientific name
- Pulsatilla vulgaris