|scientific name Saucrobotys fumoferalis |
common name Dusky Saucrobotys Moth
South-facing slopes near spreading dogbane.
June to early July.
Wingspan around 30 mm. Forewings dark grayish fuscous, hindwings lighter. A checkered terminal line is present, especially on the forewings above. The genitalia are very similar to those of Saucrobotys futilalis (Munroe 1976). Similar to S. futilalis but the forewings of the latter are light brown in color and the checkered terminal line is not as obvious. Also similar to Mutuuraia mysippusalis but the latter has a more acute apex of the forewing and lacks a checkered terminal line.
Uncommon, probably of no concern.
Unknown. The larvae may possibly feed on Apocynum androsaemifolium (spreading dogbane) as does Saucrobotys futilalis. Spreading dogbane is common where moths were collected near Winfield.
Nova Scotia west to British Columbia, north to the Yukon, and south to Pennsylvania, Illinois and California (Munroe 1976). The Type Locality is Siskiyou Co., California. Reported from Areas 7 (Lloydminster) and 10 (Edmonton) in Alberta by Bowman (1951) as Pyrausta fumoferalis. Also known in Alberta from 8 km NW of Winfield.
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