|scientific name Furcula cinerea |
common name Grey Furcula
Deciduous forest and shrub
Adults are on the wing late May though mid-July
A medium-size (3.3-4.5 cm wingspan) pale grey moth. The long silky hair on the body is typical of the genus. The forewings are pale pearl grey shading to white at the wing-base. The normal lines are reduced to a few dark marks, in particular at the costa, and a series of black dots on the outer margin in the spaces between the veins. There are also a few small patches of gold or orange scales along the lower forewing margin. The hindwings are white with a row of prominent back spots between the veins along the margin, and a small dark discal spot. All other Furcula species have a sharply contrasting dark median band crossing the forewings. The nominate subspecies been reported from the Llyodminster region. Subspecies wileyi occurs in the grasslands region of southern Alberta; it is larger and paler than ssp. cinerea.
The adults are diurnal and come to lights. Larvae are solitary defoliators. There is a single brood which overwinters as pupae.
No Alberta data. Elsewhere larval hosts are reported to be poplar (Populus sp.) and willow (Salix).
Nova Scotia west to BC. In Alberta, cinerea occurs in the wooded portions of the valleys in the grasslands region and locally in the aspen parklands.
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