Long-horned Black Legionnaire
- Group
- True flies
- Records since 2000
- 609
- Scientific name
- Beris geniculata
Minor Shoulder-knot
- Group
- Butterflies and moths
- Records since 2000
- 608
- Scientific name
- Brachylomia viminalis
Common small pot beetle
- Group
- Beetles
- Records since 2000
- 606
- Scientific name
- Cryptocephalus pusillus
Yellow-tail
- Group
- Butterflies and moths
- Records since 2000
- 605
- Scientific name
- Sphrageidus similis
Hydroporus striola
- Group
- Beetles
- Records since 2000
- 604
- Peak month
- July
New Zealand-bur
- Group
- Flowering plants
- Records since 2000
- 604
- Scientific name
- Acaena novae-zelandiae
Scirtes hemisphaericus
- Group
- Beetles
- Records since 2000
- 604
- Also known as
- a water beetle
Pegomya solennis
- Group
- True flies
- Records since 2000
- 601
- Peak month
- July
Microclymene tricirrata
- Group
- Worms (annelids)
- Records since 2000
- 596
- Peak month
- July
Oulema gallaeciana
- Group
- Beetles
- Records since 2000
- 596
- Peak month
- July
Fen Snout
- Group
- True flies
- Records since 2000
- 595
- Scientific name
- Nemotelus pantherina
Ribwort Slender
- Group
- Butterflies and moths
- Records since 2000
- 595
- Scientific name
- Aspilapteryx tringipennella
Spio goniocephala
- Group
- Worms (annelids)
- Records since 2000
- 594
- Peak month
- July
Sarcophaga haemorrhoa
- Group
- True flies
- Records since 2000
- 593
- Peak month
- July
Spotted risso
- Group
- Molluscs
- Records since 2000
- 593
- Scientific name
- Pusillina inconspicua
Orange Crest
- Group
- Butterflies and moths
- Records since 2000
- 592
- Scientific name
- Helcystogramma rufescens
Straw-barred Pearl
- Group
- Butterflies and moths
- Records since 2000
- 591
- Scientific name
- Pyrausta despicata
Yellow-bowed Smoothwing
- Group
- True flies
- Records since 2000
- 591
- Scientific name
- Scaeva selenitica
Allacma fusca
- Group
- Springtails
- Records since 2000
- 590
- Peak month
- July
Spined Mason Bee
- Group
- Bees, wasps and ants
- Records since 2000
- 590
- Scientific name
- Osmia spinulosa
Blytt's Fork-moss
- Group
- Mosses
- Records since 2000
- 589
- Scientific name
- Arctoa blyttii
Alder vein angle gall
- Group
- Mites, harvestmen and other arachnids
- Records since 2000
- 587
- Scientific name
- Eriophyes inangulis
Broadbar Clover Sawfly
- Group
- Bees, wasps and ants
- Records since 2000
- 586
- Scientific name
- Tenthredo notha
Square-spot Deerfly
- Group
- True flies
- Records since 2000
- 586
- Scientific name
- Chrysops viduatus
Dicranomyia autumnalis
- Group
- True flies
- Records since 2000
- 585
- Peak month
- July
Sharp-leaved Fluellen
- Group
- Flowering plants
- Records since 2000
- 585
- Scientific name
- Kickxia elatine
Anthomyia pluvialis
- Group
- True flies
- Records since 2000
- 584
- Peak month
- July
Daisy
- Group
- Flowering plants
- Records since 2000
- 583
- Scientific name
- Helichrysum luteoalbum
Brachicoma devia
- Group
- True flies
- Records since 2000
- 582
- Peak month
- July
Trichobranchus glacialis
- Group
- Worms (annelids)
- Records since 2000
- 581
- Peak month
- July
Mountain Notchwort
- Group
- Liverworts
- Records since 2000
- 580
- Scientific name
- Mesoptychia collaris
Poplar Caloptilia
- Group
- Butterflies and moths
- Records since 2000
- 579
- Scientific name
- Caloptilia stigmatella
Hebecnema umbratica
- Group
- True flies
- Records since 2000
- 578
- Peak month
- July
Pacific Golden-Plover
- Group
- Birds
- Records since 2000
- 577
- Scientific name
- Pluvialis fulva
Hybos culiciformis
- Group
- True flies
- Records since 2000
- 575
- Peak month
- July
Muslin Footman
- Group
- Butterflies and moths
- Records since 2000
- 575
- Scientific name
- Nudaria mundana
Rusty Watercolor Lichen
- Group
- Lichens
- Records since 2000
- 575
- Scientific name
- Ionaspis lacustris
Acnemia nitidicollis
- Group
- True flies
- Records since 2000
- 574
- Peak month
- July
Beautiful China-mark
- Group
- Butterflies and moths
- Records since 2000
- 572
- Scientific name
- Nymphula nitidulata
Latticed Sheet-web Weaver
- Group
- Spiders
- Records since 2000
- 571
- Scientific name
- Neriene clathrata
Ridge-saddled Carpenter Bee
- Group
- Bees, wasps and ants
- Records since 2000
- 571
- Scientific name
- Heriades truncorum
Yellow pot beetle
- Group
- Beetles
- Records since 2000
- 570
- Scientific name
- Cryptocephalus fulvus
Wood-carving Leaf-cutter Bee
- Group
- Bees, wasps and ants
- Records since 2000
- 569
- Scientific name
- Megachile ligniseca
Bottle-brush
- Group
- Jellyfish, corals and anemones
- Records since 2000
- 567
- Scientific name
- Thuiaria thuja
Northern Colletes
- Group
- Bees, wasps and ants
- Records since 2000
- 567
- Scientific name
- Colletes floralis
Crisp rockbrake
- Group
- Ferns and horsetails
- Records since 2000
- 566
- Scientific name
- Cryptogramma crispa
Hilara chorica
- Group
- True flies
- Records since 2000
- 566
- Peak month
- July
Loosestrife Weevil
- Group
- Beetles
- Records since 2000
- 566
- Scientific name
- Nanophyes marmoratus