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 sphinx and royal moths, stoneflies, and dragonflies, 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 Invertebrates15,0731,1009,99536322,053
Corals and other Cnidarians2500026
Freshwater Mussels*30630566340
Freshwater Snails*7831710119837
Terrestrial Snails*1,94812921642,110
Worms, Leeches, and Other Annelids4103045
Crayfishes*35226112381
Amphipods219280226
Isopods115910127
Fairy, Clam, and Tadpole Shrimps*62021063
Other Crustaceans1435130160
Butterflies and Skippers*6225152692501,408
Giant Silkworm and Royal Moths*491119283
Sphinx Moths*770340125
Notodontid Moths*861561144
Underwing Moths*10613571119
Papaipema Moths*52031053
Tiger Moths*1132701133
Other Moths1,286212,20972,800
Tiger Beetles*1061583238272
Other Beetles2,991753,90235,268
Ants, Wasps, and Bees17361530333
Caddisflies1,410563241,444
Stoneflies*61311710653
Grasshoppers*49613658669
Mayflies*54132722584
Dragonflies and Damselflies*474242106499
Other Insects6301078771,358
Millipedes and Centipedes23217510282
Diplurans, Springtails and Proturans170300173
Spiders and Other Chelicerates672346411,066
Flatworms3801041
Other Invertebrates43028058
"*" Denotes groups for which native species are comprehensively covered in NatureServe Explorer.
Note: These records include 154 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*361748944
Freshwater Snails*86499158414
Terrestrial Snails*758542806656
Crayfishes*318016711
Fairy, Clam, and Tadpole Shrimps*4164300
Butterflies and Skippers*112948434
Giant Silkworm and Royal Moths*0173310
Sphinx Moths*0146220
Notodontid Moths*4386120
Underwing Moths*1129120
Papaipema Moths*3173300
Tiger Moths*2398120
Tiger Beetles*0287800
Stoneflies*1627133003
Grasshoppers*20271156543
Mayflies*1418635108
Dragonflies and Damselflies*38038515

 

 


Copyright 2008
  NatureServe
Version 7.0 (1 February 2008)
Ecological systems data last updated: June 2008
All other data last updated: February 2008