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

See Moth submissions from National Moth Week 2023

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

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

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of 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

Previous events


Genus Zerene - Dogfaces

California Dogface - Zerene eurydice - Zerene eurydice - female Southern Dogface or Clouded Sulphur? - Zerene cesonia sulpher butterfly - Zerene cesonia - male Southern Dogface - Zerene cesonia - female Southern Dogface - Zerene cesonia - female Zerene eurydice - female Sulfur? - Zerene cesonia - female December Dogface - Zerene cesonia
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 Pieridae (Whites, Sulphurs, Yellows)
Subfamily Coliadinae (Sulphurs and Yellows)
Genus Zerene (Dogfaces)
Synonyms and other taxonomic changes
formerly included in the genus Colias
2 species in North America, the Southern Dogface (Z. cesonia) and the California Dogface (Z. eurydice)
pattern of the upper forewing resembles a yellow "dog face" bordered by black, with a black circle forming the eye
resident in California, Texas, and Florida; regular migrant across southern two-thirds of United States, with occasional strays recorded as far north as central Canada and the Great Lakes
open areas such as roadsides and pastures
larvae feed on legumes
Internet References
live adult images of Z. cesonia (Jeffrey Pippen, Texas, courtesy of Duke U.)
pinned adult images plus other info on Z. eurydice (