Parthenina decussata
- Group
- Molluscs
- Records since 2000
- 138
- Peak month
- April
Meligramma triangulifera
- Group
- True flies
- Records since 2000
- 137
- Peak month
- April
Ash-leaf maple
- Group
- Flowering plants
- Records since 2000
- 136
- Scientific name
- Acer negundo
Gomphonema angusta
- Group
- Seaweeds and algae
- Records since 2000
- 136
- Peak month
- April
Hemerobius micans
- Group
- Lacewings
- Records since 2000
- 136
- Peak month
- April
Scrophularia vernalis
- Group
- Flowering plants
- Records since 2000
- 136
- Peak month
- April
A Wart lichen
- Group
- Lichens
- Records since 2000
- 135
- Scientific name
- Lepra ophthalmiza
Anthonomus pomorum
- Group
- Beetles
- Records since 2000
- 135
- Peak month
- April
Lambiella furvella
- Group
- Lichens
- Records since 2000
- 135
- Peak month
- April
Navicula claytonii
- Group
- Seaweeds and algae
- Records since 2000
- 135
- Peak month
- April
Plasmoverna pygmaea
- Group
- Microorganisms and protists
- Records since 2000
- 135
- Peak month
- April
Ischnus inquisitorius
- Group
- Bees, wasps and ants
- Records since 2000
- 134
- Peak month
- April
Achnanthes laevis
- Group
- Seaweeds and algae
- Records since 2000
- 133
- Peak month
- April
Junghuhnia nitida
- Group
- Fungi
- Records since 2000
- 133
- Peak month
- April
Collarina balzaci
- Group
- Bryozoans
- Records since 2000
- 132
- Peak month
- April
Emperor Goose
- Group
- Birds
- Records since 2000
- 132
- Scientific name
- Anser canagicus
Bryomyia apsectra
- Group
- True flies
- Records since 2000
- 130
- Peak month
- April
Chaetozone vivipara
- Group
- Worms (annelids)
- Records since 2000
- 130
- Peak month
- April
Hairy rove beetle
- Group
- Beetles
- Records since 2000
- 130
- Scientific name
- Creophilus maxillosus
Gloniopsis praelonga
- Group
- Fungi
- Records since 2000
- 129
- Peak month
- April
Nitschke's dot lichen
- Group
- Lichens
- Records since 2000
- 129
- Scientific name
- Micarea nitschkeana
Nitzschia tubicola
- Group
- Seaweeds and algae
- Records since 2000
- 129
- Peak month
- April
Puccinia tumida
- Group
- Fungi
- Records since 2000
- 129
- Peak month
- April
Typhlotanais aequiremis
- Group
- Crustaceans
- Records since 2000
- 129
- Peak month
- April
Peritrechus lundi
- Group
- True bugs
- Records since 2000
- 128
- Peak month
- April
Smooth snake
- Group
- Reptiles
- Records since 2000
- 128
- Scientific name
- Coronella austriaca
Surirella minuta
- Group
- Seaweeds and algae
- Records since 2000
- 128
- Peak month
- April
Armadillidium album
- Group
- Crustaceans
- Records since 2000
- 127
- Peak month
- April
Morchella semilibera
- Group
- Fungi
- Records since 2000
- 127
- Peak month
- April
Picrostigeus recticauda
- Group
- Bees, wasps and ants
- Records since 2000
- 127
- Peak month
- April
Plagiogramma brockmanni
- Group
- Seaweeds and algae
- Records since 2000
- 127
- Peak month
- April
Aporrectodea icterica
- Group
- Worms (annelids)
- Records since 2000
- 126
- Peak month
- April
Fragilaria perminuta
- Group
- Seaweeds and algae
- Records since 2000
- 126
- Peak month
- April
Helvella acetabulum
- Group
- Fungi
- Records since 2000
- 126
- Peak month
- April
Lithobius microps
- Group
- Centipedes
- Records since 2000
- 126
- Peak month
- April
Luffia lapidella
- Group
- Butterflies and moths
- Records since 2000
- 126
- Peak month
- April
Mexican Mock Orange
- Group
- Flowering plants
- Records since 2000
- 126
- Scientific name
- Choisya ternata
Ruzenia spermoides
- Group
- Fungi
- Records since 2000
- 126
- Peak month
- April
Microthyrium ciliatum
- Group
- Fungi
- Records since 2000
- 125
- Peak month
- April
Lekanesphaera rugicauda
- Group
- Crustaceans
- Records since 2000
- 124
- Peak month
- April
Simulium argyreatum
- Group
- True flies
- Records since 2000
- 124
- Peak month
- April
Achnanthes marginulata
- Group
- Seaweeds and algae
- Records since 2000
- 123
- Peak month
- April
Eriocrania sparrmannella
- Group
- Butterflies and moths
- Records since 2000
- 123
- Peak month
- April
Hypoxylon fraxinophilum
- Group
- Fungi
- Records since 2000
- 123
- Peak month
- April
Seed-feeding Weevil
- Group
- Beetles
- Records since 2000
- 123
- Scientific name
- Exapion fuscirostre
Yellow monkswort
- Group
- Flowering plants
- Records since 2000
- 123
- Scientific name
- Nonea lutea
Peritrechus nubilus
- Group
- True bugs
- Records since 2000
- 122
- Peak month
- April
Psilachnum chrysostigmum
- Group
- Fungi
- Records since 2000
- 122
- Peak month
- April