FWL: 9.5-11.5 mm
Forewings are straw yellow, narrow, and unmarked, although some females may have a faint reticulate pattern. The termen is steeply angled creating an apex that is nearly falcate in some individuals. Hindwings are primarily white. Males have a forewing costal fold.
Xenotemna pallorana is similar but can be distinguished from C. clemensiana by the lack of a forewing costal fold, a rounded termen on the forewing, and brownish or shaded hindwings. Genitalia of these two species are different and a dissection can be used to confirm identity.
Late instar larvae are approximately 10 mm in length. The head and prothoracic shield are yellowish brown. Pinacula are large and conspicuous. An anal comb is present.
Clepsis clemensiana completes one or two annual generations. Adults are present in June and July and again in September for the second generation.
Larvae feed on leaves of the host plants. Pupation occurs in a silk tube.
Grasses (Poaceae) are considered to be the primary host for Clepsis clemensiana, although the larvae have been reported feeding on plants in several other families.
|Family ||Genus/species ||Common name|
|Apocynaceae ||Apocynum L. ||dogbane|
|Asteraceae ||Aster L. ||aster|
|Asteraceae ||Solidago L. ||goldenrod|
|Asteraceae ||Symphyotrichum novae-angliae (L.) G. L. Nesom ||New England aster|
|Poaceae ||Phleum pratense L. ||timothy|
|Poaceae ||Triticum aestivum L. ||common wheat|
|Poaceae ||[unspecified] |
|Rosaceae ||Malus Mill. ||apple|
Clepsis clemensiana is widely distributed from the Northeast west to British Columbia, south to northern Utah, Missouri, and Kentucky.
Freeman, T. N. 1958. The Archipinae of North America (Lepidoptera: Tortricidae). The Canadian Entomologist Supplement 7 (Vol. 90): 1-89.
MacKay, M. R. 1962. Larvae of the North American Tortricinae (Lepidoptera: Tortricidae). The Canadian Entomologist Supplement 28: 1-182.
Powell, J. A. 1964. Biological and taxonomic studies on tortricine moths, with reference to the species in California. University of California Publications in Entomology. Vol. 32. 317 pp.
Powell, J. A. and P. A. Opler. 2009. Moths of western North America. University of California Press, Berkeley. 369 pp.
Razwoski, J. 1979. Revision of the genus Clepsis Guenee (Lepidoptera, Tortricidae). Part I. Acta Zoologica Cracoviensia. 23: 101-198.