|scientific name Eupithecia nimbicolor |
It has been collected in all regions of Alberta, from the arid grasslands to the northern Boreal forest and the Rocky Mountains.
A small (1.7-2.3 cm wingspan) grey and yellow or orange-brown suffused moth without prominent markings. The yellow-brown or orange-brown color, the lack of prominent discal spots or bands and the elongate wings should are illustrated in Bolte (1990).
Adults are nocturnal but have also been collected during the day. There is a single brood in Alberta, with adults from mid May to mid July, peaking in late May and early June. Larval hosts include the flowers of Achillea and Castilleja, and the foliage of Salix, Rosa, Potentilla fruticosa and Ribes (McGuffin, 1958).
Eastern NFLD to western BC, and from AK to AZ.
One of the few species of Alberta Eupithecia with colored wings.
The Type Locality of nimbicolor is Calgary (red dot on map). E. adornata Taylor, a synonym of nimbicolor, was also described from Calgary specimen(s), and E. inclarata Cass. & Swett., yet another synonym of nimbicolor, was described from Pocahontas.
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