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For Insects, Spiders & Their Kin
For the United States & Canada

Species Drepana arcuata - Arched Hooktip - Hodges#6251

Arched Hooktip Moth - Drepana arcuata Arched Hooktip Moth  - Drepana arcuata Arched Hooktip  - Drepana arcuata Arched Hooktip - Drepana arcuata Arched Hooktip - Drepana arcuata Masked Birch Caterpillar - Drepana arcuata Drepana arcuata Hook tip - Drepana arcuata
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Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Drepanoidea (Hooktip and False Owlet Moths)
Family Drepanidae (Hooktip and False Owlet Moths)
Subfamily Drepaninae (Hooktip Moths)
Genus Drepana
Species arcuata (Arched Hooktip - Hodges#6251)
Hodges Number
6251
Synonyms and other taxonomic changes
Author: Walker, 1855
Size
forewing length 1.5 - 2.1 cm (1)
Identification
Adult - yellow tan or pale tan with thin wavey lines. Easily distinguished by their sharp falcate forewing apexes (1)

Larvae - green with mottled brown, purple and black on the dorsum. There are paired prominent dorsal bumps or verrucae on the second thoratic through second abdominal segments. The head is whitish with two brown purple bands. The last abdominal segment is acuminate with a short dorsal horn and is held in an elevated position while at rest (1)
Range
widespread across temperate North America from southern Alaska east across Canada to Newfoundland and south to northern California, Colorado, Texas, and the southeast (1)
Season
Adults fly from May to August (mainly June to July) (1)
Food
larva feed on alders, Alnus rubra and Alnus viridis var. sinuata (Betulaceae) (1)
Life Cycle
larvae live in silk-lined shelters on leaves that have the edged folded up. When disturbed they are said to make a faint tapping noise that may serve to space out competing individuals. Pupation is within the folded leaf in a tough, pale brown cocoon (1)
Print References
Covell, Field Guide to Eastern Moths, p. 343, plate 46 #2 (2)
Works Cited
1.Moths of Western North America
Powell and Opler. 2009. UC Press.
2.Peterson Field Guides: Eastern Moths
Charles V. Covell. 1984. Houghton Mifflin Company.