Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

The Penitent Underwing
Catocala piatrix Grote, 1864

Family: Erebidae
Subfamily: Erebinae
Identification: Forewing grayish brown, with an oblique whitish bar extending from costa through subreniform spot. Note broad tooth on basal side of am. line, near inner margin. Hindwing banded orange and black.
Wing Span: 6.8-8.4 cm.
Life History:
Flight: July-early November.
Caterpillar Hosts: Ash, butternut, hickory, pecan, persimmon, and walnut trees.
Adult Food:
Range: Maine to Florida, west through southern Ontario to South Dakota and Texas.
Management Needs:
Comments: NULL

Pollinator Week is 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.