Overview of Invertebrate Animal Data
 
 
  
 
 
 
 
 

Overview of Invertebrate Animal Data

NatureServe Explorer provides comprehensive conservation status and taxonomic information for invertebrate animal species native to the United States and Canada in the taxonomic groups noted below with an asterisk (*). Invertebrate records in NatureServe Explorer represent those species groups for which there is sufficient information known to reasonably categorize their status and distribution. Other invertebrate species not in these groups that may need conservation attention are also included. These records collectively represent less than 5% of known described U.S. and Canadian invertebrates. See Classification of Vertebrates and Invertebrates for the source of invertebrate names used in NatureServe Explorer.

Distribution information is complete for asterisked (*) groups, except giant silkworm and royal moths, notodonid moths, tiger moths, bumble bees, stoneflies, and mayflies for which distribution information is only provided for those species globally at risk (i.e., with global conservation status ranks of GX to G3). All invertebrate species recorded in NatureServe Explorer have been classified according to major references or recent literature, and most have been assigned a global conservation status rank. National status under the U.S. Endangered Species Act and the Committee on the Status of Endangered Wildlife in Canada are provided where applicable. This information is continually reviewed and updated in the NatureServe Central Databases in order to reflect the latest taxonomic treatments, ongoing inventory efforts, and new status assessments. NatureServe Explorer is updated periodically from the NatureServe Central Databases, and new invertebrate groups are regularly added to the databases.

Invertebrate Records in NatureServe Explorer
(Native and Exotic)
Known U.S.
Distribution
Known Canadian Distribution Total Species and Subspecies
Species Subspecies Species Subspecies
All Invertebrates16,7041,26312,47542425,205
Corals and other Cnidarians2501026
Freshwater Mussels*31025556340
Freshwater Snails*7741810220832
Terrestrial Snails*1,93413021682,096
Worms, Leeches, and Other Annelids4804070
Crayfishes*36324114389
Amphipods2513130261
Isopods126710134
Fairy, Clam, and Tadpole Shrimps*96027096
Other Crustaceans1395100169
Butterflies and Skippers*6246352732671,475
Giant Silkworm and Royal Moths*491324386
Sphinx Moths*820400123
Notodontid Moths*1102582141
Underwing Moths*10312573115
Papaipema Moths*52032053
Tiger Moths*1330962159
Other Moths1,905462,71663,534
Tiger Beetles*1071593238274
Other Beetles3,267814,408135,880
Ants, Wasps, and Bees500141601622
Caddisflies*1,419363431,451
Stoneflies*65322401676
Grasshoppers4931511913613
Mayflies*56452886593
Dragonflies and Damselflies*472262087500
Other Insects803141,122101,834
Millipedes and Centipedes24217510303
Diplurans, Springtails and Proturans179300183
Spiders and Other Chelicerates69231,388101,885
Flatworms4201045
Other Invertebrates43029060
"*" Denotes groups for which native species are comprehensively covered in NatureServe Explorer.
Note: These records include 351 invertebrates known to be exotic in the United States or Canada.

Invertebrate Animals by NatureServe Conservation Status
(Native Only)
Invertebrate Species Groups Potentially Extinct
(GX, GH)
At Risk (G1, G2, G3) Apparently Secure (G4, G5) Unrankable (GU) Not Yet Ranked (GNR)
Freshwater Mussels*301789643
Freshwater Snails*79500158413
Terrestrial Snails*768153006654
Crayfishes*319216701
Fairy, Clam, and Tadpole Shrimps*5404702
Butterflies and Skippers*212648834
Giant Silkworm and Royal Moths*0173510
Sphinx Moths*0136431
Notodontid Moths*4346760
Underwing Moths*1138720
Papaipema Moths*3173210
Tiger Moths*23911103
Tiger Beetles*0426500
Caddisflies*12658757162
Stoneflies*1229235105
Grasshoppers18213220554
Mayflies*1319935806
Dragonflies and Damselflies*37838713

 

 


Copyright 2013
  NatureServe
Version 7.1 (2 February 2009)
Data last updated: October 2012