Eupithecia niveifascia Hulst 1898

Extreme southwestern Alberta west to Vancouver Island, north to northern coastal BC and south to New Mexico. The only Alberta record is a single specimen collected in Waterton Lakes National Park. The Type Locality is New Mexico.

A small (1.7-1.9 cm wingspan) broad-winged yellow-brown and white moth. The forewings are pale cream with numerous wavy incomplete parallel cross lines of darker yellow-brown and light grey. Light postmedian band prominent where bending inward sharply before joining costa as large light patch. Prominent dark discal bars, Fringe checked white and light brown. Hindwings white or cream with yellow-brown marking on lower half, and with prominent dark discal bars. Adults and genitalia of both sexes are illustrated in Bolte, 1990. The light yellow-brown color and prominent discal bars on four wings will help separate niveifascia from most other western Alberta Eupithecia, although the genitalia should be examined for positive identification, in particular when specimens are worn.

Poorly known. Adults are likely active both at dusk and after dark. There is probably a single brood in Alberta. In adjacent BC adults fly from late May to mid July; the Alberta specimen was collected on July 11, 2005. The larva and host plant are unknown.

Eupithecia niveifascia is a moth in the family Geometridae first described by George Duryea Hulst in 1898. It is found in North America from south-western Alberta west to Vancouver Island, north to northern coastal British Columbia and south to New Mexico.

The wingspan is 17–19 mm. The forewings are pale cream with darker yellow-brown and light grey parallel crosslines. The hindwings are white or cream with yellow-brown markings on the lower half and with dark discal bars. Adults have been recorded on wing from the end of May to mid-July.