Isogona tenuis (Grote, 1872),

Pogue, Michael G., 2012, The Aventiinae, Boletobiinae, Eublemminae, Pangraptinae, Phytometrinae, and Scolecocampinae (Lepidoptera: Noctuoidea: Erebidae) of Great Smoky Mountains National Park, U. S. A., Zootaxa 3153, pp. 1-31: 25

publication ID 10.5281/zenodo.279582

persistent identifier

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scientific name

Isogona tenuis (Grote, 1872)


4. Isogona tenuis (Grote, 1872)  Thin-lined Owlet

( Figs. 46–48View FIGURES 33 – 55, Map 22)

Identification. Forewing length 10.8–15.5 mm. Isogona tenuis  has a brown forewing ground color that is darker along the costa. Forewing is well marked with all pattern elements cream colored. All forewing veins are highlighted with cream-colored scales; antemedial line is sharply curved between costa and R vein then straight to posterior margin; reniform spot large, at end of discal cell; postmedial line is Y-shaped at M 1 vein, with proximal branch from costa and distal branch from apex that forms a straight angled line to posterior margin; subterminal line faint and crenulate; terminal line cream colored; outer margin abruptly angle at M 3 vein. Hind wing concolorous to somewhat lighter than forewing with continuation of postmedial line across middle of hind wing. Labial palpus is porrect and elongate, approximately 3 X eye width; frons is bare. Thorax has a dark brown prothoracic collar.

Flight period. June to August, probably more than one brood.

Collected localities. Tennessee: Blount Co.: Campsite 6 along Scott Mountain Trail; Cocke Co.: Foothills Parkway. (2 specimens)

Elevation range. 2020–3324 ft. (616–1013 m)

General distribution. Distributed from Pennsylvania south to Florida and west to Ohio, Illinois, Missouri, Oklahoma, Louisiana, east Texas, and Kansas.

Larval hosts. Hackberry ( Celtis  sp., Ulmaceae  ) ( Covell 1984).

MAP 22. Collecting localities of Isogona tenuis  .