Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Shield-backed Cutworm
Sunira decipiens (Grote, 1881)

Family: Noctuidae
Subfamily: Noctuinae
Identification: Forewing is even yellow-brown, with reniform spots outlined in brown. Fine brown lines through forewing, medial band slightly darker than other bands/lines.
Wing Span: 3.0 - 3.5 cm
Life History:
Flight: Adults are nocturnal, fly from August to mid-October
Caterpillar Hosts: Many broadleaf deciduous trees including aspen, willow and maples
Adult Food:
Range: British Columbia south to California, Utah and Colorado.
Management Needs:
Taxonomy Notes: None.
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