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Hypena madefactalis, the gray-edged hypena or gray-eyed bomolocha, is a moth of the family Erebidae. The species was first described by Achille Guenée in 1854. It is found from extreme southern Canada (Quebec) to Georgia and Texas.

Hypena madefactalis
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Superfamily:	Noctuoidea
Family:	Erebidae
Genus:	Hypena
Species:	H. madefactalis
Binomial name
Hypena madefactalis Guenée, 1854
Synonyms
Hypena caducalis Walker, 1858 Hypena damnosalis Walker, 1859 Hypena achatinalis Zeller, 1872 Hypena profecta Grote, 1872 Bomolocha madefactalis (Guenée, 1854)

The wingspan is 25–32 mm. The moth flies from April to August in the south and from May to August in the north. There are at least two generations per year.

The larvae feed on walnut, mainly Juglans nigra and Juglans cinerea. Larvae have also been reared on shagbark hickory.

References

• Wagner, David L.; Schweitzer, Dale F.; Sullivan, J. Bolling & Reardon, Richard C. (2011). Owlet Caterpillars of Eastern North America. Princeton University Press. ISBN 978-0691150420.
• McLeod, Robin (October 16, 2018). "Species Hypena madefactalis - Gray-edged Hypena - Hodges#8447". BugGuide. Retrieved February 12, 2020.
• "930568.00 – 8447 – Hypena madefactalis – Gray-edged Bomolocha Moth – Guenée, 1854". North American Moth Photographers Group. Mississippi State University. Retrieved February 12, 2020.

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