Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Eucosma dorsiatomana (Kearfott, 1905)

Family: Tortricidae
Subfamily: Olethreutinae
Identification: FW shades of pale olive-brown or fawn, with a white divided median stripe, ocellic spot, sub-apical costa markings, and inner two-fifths of costa narrowly edged with white. Brown shades are palest along the dorsum, between median streak and costa. White median streak extends from base to end of cell and is evenly divided its whole length by a narrow black line, a heavier black line outlines the white streak below, and a less well defined one above. The inner half of costa is minutely dotted with brown. The dorsal margin from inner fourth to anal angle is distinctly marked with seven or eight equally spaced black dots. HW dark smoky-brown, cilia gray, with a darker basal line. Legs whitish, tarsi shaded with brown.
Wing Span: 1.7-1.95 cm
Life History:
Flight: Alberta (June and July), CA (April to June), CO (Aug and Sept), I (June) MD (July)
Caterpillar Hosts: Larval host is common wormwood (Artemisia vulgaris).
Adult Food:
Range: Records from Alberta, California, Colorado, Illinois, and Maryland.
Management Needs:
Taxonomy Notes: Formerly placed in the genus Phaneta, Zootaxa, 3746(2): 301-337.