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

Upcoming Events

Interested in a 2022 BugGuide gathering in New Mexico?

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week 2020 photos of insects and people.

Photos of insects and people from the 2019 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.

Previous events

Unknown Brown Butterfly - Hesperopsis libya

Unknown Brown Butterfly - Hesperopsis libya
Trona Pinnacels, San Bernardino County, California, USA
April 8, 2015

H. alpheus
I'm pretty sure this is a Saltbush Sootywing (Hesperopsis alpheus).

Jason, I haven't been in this discussion
since west coast leps are a learning process for me. I am curious why you think this is Saltbush Sootywing? From various guides, Saltbush male has mottling, subapical spots bend distally, and checkering of the fringe of the dorsal forewing which I do not note on this specimen.

Moved from ID Request.

Hesperopsis libya
Nice find! There are only half-a-dozen other submissions of this species in the guide!

Pholisora catullus is somewhat similar on the upperside, but I'm pretty sure this is the correct identification.

One thing I should note, is that the county given (Orange County), is incorrect, and should be changed as Trona Pinnacles is in north-western San Bernardino County. In this case it made the identification tougher, as I assumed it was the Common Sootywing based on location. As I researched it, though, it kept seeming to turn out as a Mojave Sootywing, which has never been found in Orange County! I finally figured this out by searching the web for Trona Pinnacles.

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