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


Species Callophrys irus - Frosted Elfin

Frosted Elfin - Callophrys irus - female Frosted Elfin on wild indigo - Callophrys irus Frosted elfin caterpillar - Callophrys irus Frosted Elfin - Callophrys irus Frosted Elfin - Callophrys irus Frosted Elfin - Callophrys irus Elfin 033115 ID - Callophrys irus Frosted Elfin - Callophrys irus - female
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 Theclinae (Hairstreaks)
Tribe Eumaeini
Genus Callophrys
Species irus (Frosted Elfin)
Wingspan 2.5-3.2 cm
Eastern North America, local
Open woods, edges, scrublands near hostplant
March-June (depending on latitude), one flight
Adults take nectar.
Life Cycle
Larvae feed on certain Fabaceae, esp. Lupines (Lupinus) and Baptisia.
Print References
Brock and Kaufman, pp. 104-105 (1)
Glassberg, p. 79 plate 20 (2)
Allen, p. 93, plates 9, 34, 45 (3)
Scott, species #331, p. 370 (4)
Works Cited
1.Butterflies of North America (Kaufman Focus Guides)
Jim P. Brock, Kenn Kaufman. 2003. Houghton Mifflin Co.
2.Butterflies Through Binoculars: The East
Jeffrey Glassberg. 1999. Oxford University Press.
3.The Butterflies of West Virginia and Their Caterpillars
Thomas J. Allen. 1998. University of Pittsburgh Press.
4.The Butterflies of North America: A Natural History and Field Guide
James A. Scott. 1992. Stanford University Press.