Lime nail gall, Bugle gall
- Group
- Mites, harvestmen and other arachnids
- Peak month
- May
- Records since 2000
- 1,068
Alder Bead Gall Mite
- Group
- Mites, harvestmen and other arachnids
- Peak month
- July
- Records since 2000
- 912
Galium gall mite
- Group
- Mites, harvestmen and other arachnids
- Peak month
- May
- Records since 2000
- 768
Sycamore Cherry Mite
- Group
- Mites, harvestmen and other arachnids
- Peak month
- May
- Records since 2000
- 743
Phyllocoptes goniothorax
- Group
- Mites, harvestmen and other arachnids
- Peak month
- May
- Records since 2000
- 625
Eriophyes similis
- Group
- Mites, harvestmen and other arachnids
- Peak month
- June
- Records since 2000
- 610
Alder vein angle gall
- Group
- Mites, harvestmen and other arachnids
- Peak month
- July
- Records since 2000
- 587
Solitary maple leaf gall mite
- Group
- Mites, harvestmen and other arachnids
- Peak month
- September
- Records since 2000
- 549
Aceria brevipunctata
- Group
- Mites, harvestmen and other arachnids
- Peak month
- May
- Records since 2000
- 505
Walnut Blister Mite
- Group
- Mites, harvestmen and other arachnids
- Peak month
- August
- Records since 2000
- 477
Aceria myriadeum
- Group
- Mites, harvestmen and other arachnids
- Peak month
- May
- Records since 2000
- 474
Aceria pseudoplatani
- Group
- Mites, harvestmen and other arachnids
- Peak month
- August
- Records since 2000
- 416
Aceria fraxinivora
- Group
- Mites, harvestmen and other arachnids
- Peak month
- August
- Records since 2000
- 404
Aceria thomasi
- Group
- Mites, harvestmen and other arachnids
- Peak month
- June
- Records since 2000
- 385
Eriophyes sorbi
- Group
- Mites, harvestmen and other arachnids
- Peak month
- June
- Records since 2000
- 315
Acalitus brevitarsus
- Group
- Mites, harvestmen and other arachnids
- Peak month
- September
- Records since 2000
- 266
Aceria ilicis
- Group
- Mites, harvestmen and other arachnids
- Peak month
- November
- Records since 2000
- 263
Cecidophyes nudus
- Group
- Mites, harvestmen and other arachnids
- Peak month
- September
- Records since 2000
- 255
Eriophyes exilis
- Group
- Mites, harvestmen and other arachnids
- Peak month
- June
- Records since 2000
- 222
Aceria nervisequa
- Group
- Mites, harvestmen and other arachnids
- Peak month
- June
- Records since 2000
- 197
Acalitus rudis
- Group
- Mites, harvestmen and other arachnids
- Peak month
- June
- Records since 2000
- 162
Vasates quadripedes
- Group
- Mites, harvestmen and other arachnids
- Peak month
- September
- Records since 2000
- 152
Eriophyes leiosoma
- Group
- Mites, harvestmen and other arachnids
- Peak month
- June
- Records since 2000
- 138
Stenacis evonymi
- Group
- Mites, harvestmen and other arachnids
- Peak month
- September
- Records since 2000
- 136
Eriophyes axillare
- Group
- Mites, harvestmen and other arachnids
- Peak month
- July
- Records since 2000
- 125
Aculops fuchsiae
- Group
- Mites, harvestmen and other arachnids
- Peak month
- October
- Records since 2000
- 122
Acalitus stenaspis
- Group
- Mites, harvestmen and other arachnids
- Peak month
- June
- Records since 2000
- 121
Phyllocoptes populi
- Group
- Mites, harvestmen and other arachnids
- Peak month
- July
- Records since 2000
- 106
Eriophyes pyri
- Group
- Mites, harvestmen and other arachnids
- Peak month
- June
- Records since 2000
- 99
Aceria nalepai
- Group
- Mites, harvestmen and other arachnids
- Peak month
- July
- Records since 2000
- 83
Aceria populi
- Group
- Mites, harvestmen and other arachnids
- Peak month
- February
- Records since 2000
- 80
Eriophyes crataegi
- Group
- Mites, harvestmen and other arachnids
- Peak month
- May
- Records since 2000
- 66
Aceria cerrea
- Group
- Mites, harvestmen and other arachnids
- Peak month
- September
- Records since 2000
- 63
Phyllocoptes eupadi
- Group
- Mites, harvestmen and other arachnids
- Peak month
- June
- Records since 2000
- 61
Aculus laevis
- Group
- Mites, harvestmen and other arachnids
- Peak month
- July
- Records since 2000
- 55
Acalitus longisetosus
- Group
- Mites, harvestmen and other arachnids
- Peak month
- June
- Records since 2000
- 52
Cecidophyopsis psilaspis
- Group
- Mites, harvestmen and other arachnids
- Peak month
- April
- Records since 2000
- 51
Aculus tetanothrix
- Group
- Mites, harvestmen and other arachnids
- Peak month
- August
- Records since 2000
- 50