Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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

Calendar
Upcoming Events

Information, insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa


TaxonomyBrowseInfoImagesLinksBooksData
Photo#1194262
Possible Isoperla secies - Acroneuria

Possible Isoperla secies - Acroneuria
Mount Arabia, Georgia, USA
February 26, 2016
Size: 3 cm
I followed the Guide to the Stoneflies (Plecoptera) of Florida to the genus level but would appreciate if anyone could help me pinpoint the species. The features that got me this far are: highly branched gills on sides and venter of thoracic segments, no gills on 1st or 2nd abdominal segments; cerci at least as long as abdomen and contrasting pigment pattern on head and thorax; submental gills absent; ocellar triangle covered with dark area (but without a light patch in the middle as is typical of the genus).

I found this specimen under gravel in a fast moving clear stream.

Moved
Moved from ID Request.

Highly branched gills on the sides of the thoracic segments is characteristic of the Perlidae. None of the Perlodidae have branched thoracic gills. A few genera out here on the West Coast have simple gills, however.

 
Thanks! I'll have to go see w
Thanks! I'll have to go see where I went wrong.

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.