Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Bronze Roadside-Skipper
Amblyscirtes aenus W.H. Edwards, 1878


Family: Hesperiidae
Subfamily: Hesperiinae
Identification: Upperside is brown with a slight orange sheen; forewing with a few faint pale spots, hindwing with no markings. Male stigma is obscure. Underside of hindwing is reddish brown with a row of pale spots. Form "erna" lacks spots on the hindwing underside.
Wing Span: 1 - 1 1/4 inches (2.5 - 3.2 cm).
Life History: To wait for receptive females, males perch and patrol all day in gully bottoms. Caterpillars eat the leaves of host plants and make shelters of rolled or tied leaves. Half-grown caterpillars hibernate.
Flight: One brood in Colorado from April-July; two broods southward from April-September.
Caterpillar Hosts: Indian woodoats grass (Chasmanthium latifolia), sideoats grama (Bouteloua curtipendula), nodding brome (Bromus anomalus), and probably other grasses.
Adult Food: Flower nectar.
Habitat: Gullies, stream bottoms, and foothills in open woodlands and grasslands; coniferous forests.
Range: Colorado and southen Utah south to Arizona, New Mexico, and northern Mexico; south and east to central Texas, western Oklahoma, and south-central Kansas.
Conservation: Not usually required.
NCGR: G4 - Apparently secure globally, though it might be quite rare in parts of its range, especially at the periphery.
Management Needs: None reported.
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.