Species Page: Mottled Duskywing (Erynnis martialis)

Mottled Duskywing

Erynnis martialis (Scudder, 1869)

Family: Hesperiidae

Status: Rare local resident

NENHP Ranking: S2, Tier 1

Range: Found in the eastern United States, with isolated populations in the Rocky Mountains. In Nebraska it has been found in the Missouri River bluffs, the Pine Ridge, the Niobrara River valley, and at Nebraska National Forest at Halsey.

Larval Hostplant(s): New Jersey tea – Ceanothus americanus.

Broods/Flight Times: Reported as double brooded except at high altitudes. The first flight should fly in April and early May. Records from Nebraska are from June 17 to July 25 and likely represent the second brood.

Overwintering: As full grown larvae.

Habitat: Prairies, open woodlands.

Avg. Wingspan: 1 1/8 – 1 5/8 inches

Found at: Nebraska National Forest – Halsey, Niobrara Valley Preserve, Pine Ridge (Gilbert-Baker SWMA?), Indian Cave State Park?

Similar Species: E. afranius and E. persius


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