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Species Isogona tenuis - Thin-lined Owlet - Hodges#8493

Thin-lined Owlet, #8493 - Isogona tenuis Thin-lined Owlet  - Isogona tenuis Thin-Lined Owlet - Isogona tenuis Moth - Isogona tenuis Isogona tenuis brown moth - Isogona tenuis Isogona tenuis Brown Moth with map like markings - Isogona tenuis
Show images of: caterpillars · adults · both
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 Boletobiinae
Tribe Phytometrini
Genus Isogona
Species tenuis (Thin-lined Owlet - Hodges#8493)
Hodges Number
Synonyms and other taxonomic changes
Isogona tenuis (Grote, 1872)
Eutoreuma tenuis Grote, 1872 (22)
Phylogenetic sequence # 930734
Explanation of Names
TENUIS: thin, fine, delicate, weak, feeble (William Whitaker); refers to the thin lines along the veins of the forewing
Seven Isogona species are found in America north of Mexico.(1)
Forewing length 10.8-15.5 mm. (2)
Description in PDF (Pogue, 2012). (2)
Original description as Eutoreuma tenuis Grote. (22)
Adult: forewing mouse gray, darker toward costa and somewhat mottled; veins, lines, and reniform spot outline yellowish-white; AM line nearly straight; PM line Y-shaped, with branches diverging to apex and costa; hindwing dark grayish with yellowish-white median line (3)
adults variations
Ohio to Pennsylvania Florida to Texas and Florida. (4), (5), (6), (2)
Moth Photographers Group - large map with some distribution data.
Deciduous woods containing hackberry.
adults fly from May to August in the north; April to October in the south
Larvae feed on leaves of hackberry (Celtis spp.) (3)
See Also
Isogona segura

. . . . . . . .
Isogona punctipennis
Print References
Grote, A.R. 1872. Transactions of the American Entomological Society. vol. 4, p. (22)
Pougue, M.G. 2012. Lepidoptera: Noctuoidea: Erebidae of Great Smoky Mountains National Park. figs. 46-48, map 22, p. 25. (2)
Internet References
Moth Photographers Group - range map, photos of living and pinned adults.
pinned adult image and foodplant (
BOLD - Barcode of Life Data Systems - species account with collection map and photos of pinned adults.
pinned adult image by John Glaser, plus flight season (Larry Line, Maryland)
pinned adult image by James Adams (Dalton State College, Georgia)