Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
BugGuide infrastructure is undergoing changes this evening. If things look wonky, try again in a minute or two. Thanks for your patience. -John

Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Fall Fund Drive


Genus Pteronarcys - Giant Stoneflies

Giant Stonefly - Pteronarcys biloba Giant Stonefly - Pteronarcys dorsata unid. Acroneuria - Pteronarcys - male Stonefly? Rear - Pteronarcys - female big thingy - Pteronarcys Giant Stonefly - Pteronarcys Florescent Stonefly 1 - Pteronarcys - male - female Unknown stonefly nymph - Pteronarcys
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Plecoptera (Stoneflies)
Superfamily Pteronarcyoidea
Family Pteronarcyidae (Giant Stoneflies)
Genus Pteronarcys (Giant Stoneflies)
Other Common Names
Explanation of Names
Pteronarcys Newman 1838
Greek pteron (πτηρον) 'feather, wing' + arkys (αρκυς) 'net'
8 spp. in our area, 10 total(1)(2)
holarctic (2 spp. in E. Asia), incl. much of NA, significantly more diverse in the west and in the Appalachians(1)(2)
See Also
Pteronarcella (smaller, not found east of the Rocky Mts)