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


Species Erynnis tristis - Mournful Duskywing - Hodges#3953

Mournful Duskywing - Erynnis tristis - female Erynnis tristis? - Erynnis tristis - female Mournful Duskywing for California in September - Erynnis tristis - male Skipper ? - Erynnis tristis - female duskywing - Erynnis tristis Which Erynnis? - Erynnis tristis Erynnis tristis? - Erynnis tristis Mournful Duskywing - Erynnis tristis - male
Show images of: caterpillars · adults · both
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Papilionoidea (Butterflies and Skippers)
Family Hesperiidae (Skippers)
Subfamily Pyrginae (Spread-wing Skippers)
Tribe Erynnini
Genus Erynnis (Duskywings)
Species tristis (Mournful Duskywing - Hodges#3953)
Hodges Number
Synonyms and other taxonomic changes
Erynnis tristis (Boisduval)
Orig. Comb: Thanaos tristis Boisduval, 1852
Explanation of Names
tristis (L). "sad, sorrowful, mournful"- probably referring to the somber colors of the wings
Butterflies of America lists 3 subspecies:
tristis (Boisduval, 1852)
tatius (W. H. Edwards, 1883)
pattersoni Burns, 1964 ***Probably not found in our area
w. coast to s. TX to Colombia - Map (MPG, BOA)
hosts on various native oak species
Print References
Annales de la Société entomologique de France, ser. 2, v. 10, p.311 - Boisduval's original description of the species
Internet References