Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Sweetfern Underwing
Catocala antinympha (Hübner, 1823)


Family: Erebidae
Subfamily: Erebinae
Identification: Forewing glossy, usually bluish black with black lines and some brown shading, especially beyond pm. line. Subreniform spot sometimes whitish. Hindwing banded yellowish orange and black; most of fringe blackish. A small underwing.
Wing Span: 4.5-5.5 cm.
Life History:
Flight: July-September.
Caterpillar Hosts: Sweetfern.
Adult Food:
Habitat: Common in acid-soil habitats along coast; rare inland.
Range: Nova Scotia and Quebec to Maryland, west to southern Ontario and Michigan.
Conservation:
NCGR:
Management Needs:
Comments: NULL

Pollinator Week was June 20-26, 2022!

Butterflies and moths are accidental pollinators of many flowering plants. While most species do not have special structures to carry pollen, they do brush against pollen and transfer it to other flowers.

Did you know? The Eastern Tailed-Blue (Cupido comyntas) flies close to the ground and uses its short proboscis to probe flowers of wild strawberry, white sweet clover, and other low-lying plants.