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Species Orgyia definita - Definite Tussock Moth - Hodges#8314

Definite-marked Tussock Moth - Orgyia definita adult with eggs - Orgyia definita - female Definite Tussock Moth larva - Orgyia definita Definite Tussock Moth caterpillar - Orgyia definita Caterpillar-Definite Tussock Moth  - Orgyia definita Definite Tussock Moth - Hodges #8314 - Orgyia definita Orgyia caterpillar - Orgyia definita 8314 Definite Tussock Moth - Orgyia definita
Show images of: caterpillars · adults · both
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Noctuoidea (Owlet Moths and kin)
Family Erebidae
Subfamily Lymantriinae (Tussock Moths)
Tribe Orgyiini
Genus Orgyia
Species definita (Definite Tussock Moth - Hodges#8314)
Hodges Number
8314
Other Common Names
Definite-marked Tussock Moth
Synonyms and other taxonomic changes
Orgyia definita (Packard, 1864)
Size
WS ≈ 30mm
TL ≈ 15-17mm
Identification
Adult: FW of males are dark grayish-brown, with sharply defined AM and PM lines, often edged with wide brown bands. ST marked with sharp black dashes near costa, accented by bold, white crescent near inner margin. HW dark brown, almost black. Females are wingless. (1)



Larva: "Caterpillars of Orgyia definita are readily identified by the yellow color of the head, prothoracic plate and dorsal glands. The hair pencils are less fully developed than in the other species. The hair on the body is entirely whitish and the verrucae (the wart-like structures along the body) are pale yellow." (University of Florida)
Range
Most common in New England and Middle Atlantic states. (University of Florida)
Food
Larvae feed on apple, ash, basswood, birches, boxelder, cherry, elm, maple, oaks and willows (Auburn University)
Remarks
CAUTION: the hairs of caterpillars in this genus are known to cause skin irritation.
Internet References
Moth Photographers Group – images of live and pinned adults
BOLD Systems - images of pinned DNA supported specimens
BAMONA – description with images of live adults and caterpillar
Works Cited
1.Peterson Field Guide to Moths of Northeastern North America
David Beadle and Seabrooke Leckie. 2012. Houghton Mifflin.