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 Invertebrates15,5981,14210,52739822,790
Corals and other Cnidarians2500026
Freshwater Mussels*31123556338
Freshwater Snails*7761810119832
Terrestrial Snails*1,95212921532,113
Worms, Leeches, and Other Annelids4103045
Crayfishes*36024112386
Amphipods2483130256
Isopods116710124
Fairy, Clam, and Tadpole Shrimps*93027093
Other Crustaceans1195100136
Butterflies and Skippers*6225182692661,414
Giant Silkworm and Royal Moths*491224386
Sphinx Moths*780380125
Notodontid Moths*1022561145
Underwing Moths*10614571120
Papaipema Moths*52031053
Tiger Moths*00000
Other Moths1,639612,295103,002
Tiger Beetles*1061603238274
Other Beetles3,008724,01275,369
Ants, Wasps, and Bees314101521453
Caddisflies*1,417563341,451
Stoneflies*61711700653
Grasshoppers4961310513673
Mayflies*56252896594
Dragonflies and Damselflies*473262096501
Other Insects637101,121101,708
Millipedes and Centipedes24217510292
Diplurans, Springtails and Proturans176300179
Spiders and Other Chelicerates679346611,074
Flatworms3701040
Other Invertebrates43028058
"*" Denotes groups for which native species are comprehensively covered in NatureServe Explorer.
Note: These records include 165 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*311799444
Freshwater Snails*85498156414
Terrestrial Snails*768422936655
Crayfishes*318716802
Fairy, Clam, and Tadpole Shrimps*5384701
Butterflies and Skippers*112948434
Giant Silkworm and Royal Moths*0173510
Sphinx Moths*0136330
Notodontid Moths*4366140
Underwing Moths*1148920
Papaipema Moths*3173300
Tiger Moths*00000
Tiger Beetles*0396700
Caddisflies*12657756162
Stoneflies*1627133303
Grasshoppers20271189553
Mayflies*1419735806
Dragonflies and Damselflies*38038613

 

 


Copyright 2009
  NatureServe
Version 7.1 (2 February 2009)
Data last updated: July 17, 2009