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 Invertebrates15,5441,1489,98936622,305
Corals and other Cnidarians2500026
Freshwater Mussels*30630566340
Freshwater Snails*7751810319831
Terrestrial Snails*1,95112921532,112
Worms, Leeches, and Other Annelids4103045
Crayfishes*35624112382
Amphipods2483130256
Isopods116710124
Fairy, Clam, and Tadpole Shrimps*93027093
Other Crustaceans1195100136
Butterflies and Skippers*6225182692501,406
Giant Silkworm and Royal Moths*491219284
Sphinx Moths*780340125
Notodontid Moths*1022561145
Underwing Moths*10614571120
Papaipema Moths*52031053
Tiger Moths*1173711134
Other Moths1,521582,20182,847
Tiger Beetles*1061603238274
Other Beetles3,006723,89655,274
Ants, Wasps, and Bees299101511437
Caddisflies*1,410563241,444
Stoneflies*61511710655
Grasshoppers49513648668
Mayflies*55342742587
Dragonflies and Damselflies*472262096499
Other Insects6351078771,391
Millipedes and Centipedes24117510291
Diplurans, Springtails and Proturans176300179
Spiders and Other Chelicerates677346411,072
Flatworms3701040
Other Invertebrates43028058
"*" Denotes groups for which native species are comprehensively covered in NatureServe Explorer.
Note: These records include 163 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*85496157414
Terrestrial Snails*768422936655
Crayfishes*318316901
Fairy, Clam, and Tadpole Shrimps*5384701
Butterflies and Skippers*113048334
Giant Silkworm and Royal Moths*0173310
Sphinx Moths*0136230
Notodontid Moths*4376130
Underwing Moths*1148920
Papaipema Moths*3173300
Tiger Moths*2418120
Tiger Beetles*0406600
Caddisflies*12650756162
Stoneflies*1627333003
Grasshoppers20270156543
Mayflies*1418636108
Dragonflies and Damselflies*37938613

 

 


Copyright 2009
  NatureServe
Version 7.1 (2 February 2009)
Data last updated: February 6, 2009