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Photos of 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


Species Hemiargus ceraunus - Ceraunus Blue - Hodges#4359

Ceraunus blue butterfly? - Hemiargus ceraunus - male Ceraunus Blue - Hemiargus ceraunus - female Blue - Hemiargus ceraunus Hemiargus ceraunus? - Hemiargus ceraunus - female Ceraunus Blue - Hemiargus ceraunus - male blue - Hemiargus ceraunus Is this a rare Miami Blue?? - Hemiargus ceraunus Unknown Blue - Hemiargus ceraunus
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 Lycaenidae (Blues, Coppers, Hairstreaks, Harvesters)
Subfamily Polyommatinae (Blues)
Genus Hemiargus
Species ceraunus (Ceraunus Blue - Hodges#4359)
Hodges Number
Wingspan 20 - 30 mm
Two prominent black spots on leading edge of hindwing, below. One or more prominent large eyepots along the outer edge of hindwing (regional variations - southeastern ones seem to have one, southwestern ones, two).



Upperside blue (males) or brown with blue edge (females).


Southeastern and southwestern states. Year-round in FL and TX, ranging northwards in warmer months.
Larvae feed on woody legumes (pea family, Fabaceae).
Internet References
Butterflies and Moths of North America species description and map of confirmed county records.