|scientific name Copablepharon grandis |
Sand dunes and sandy prairie.
Adults have been collected in Alberta in late July and early August.
A medium-size (3.8-4.1 cm wingspan) moth with pale yellow forewings and immaculate white hindwings. Occasional specimens may have fine dark dots at the veins indicating the antemedian and postmedian lines. Copablepharon viridisparsum is white (not yellow) with a faint green cast, dark scaling in the central hindwing area and a faint dark discal spot. C. longipenne is a dull grey-brown or tan moth with light grey hindwings.
Poorly known. The larvae overwinter buried in the soil when partly grown. They complete their development in the spring, then pupate in an earthen cell in the soil. There is a single annual brood. Adults are nocturnal and are attracted to light.
A rare and very local species in Alberta.
No data. In the lab a larvae was reared on alfalfa and barley (Strickland, 1920).
Southern Alberta east to southwestern Manitoba, the eastern parts of the Dakotas and eastern Iowa; west to California and south to southern Arizona, New Mexico and western Texas. In Alberta there are historical records from Lethbridge, Monarch, High River and Calgary. The only recent records are for a colony discovered by Chris Schmidt in 2004 in dunes north of Chauvin (east of Wainwright).
Comments are published according to our submission guidelines. The EH Strickland Entomological Museum does not necessarily endorse the views expressed.