#8812 hermia

Hermia Underwing

Catocala hermia Edwards, 1880 (= C. californica)

Family: Erebidae

Status: Resident

Range: Found in the western United States east to the western edge of the Dakotas and Nebraska.

Larval Hostplant(s): Poplar (Populus) and Willow (Salix).

NENHP Ranking: Not listed.

Broods/Flight Times: A single summer brood, late July to September.

Habitat: Deciduous woodlands and prairies with/near host plants.

Avg. Wingspan: Medium Sized, 2 1/4 – 2 2/3 Inches.

Found at:

Overwintering: As eggs on tree bark.

Identification: FWs nearly uniformly gray-brown with thin but contrasting medial lines. There is a distinct double reniform spot. The HWs are pinkish red with the inner black band even, relatively narrow and terminating well before the inner margin (5)

Similar Species: – C. luciana has browner broader FWs and orange HWs. C. semirelicta is usually larger with gray powdery FWs and a more orange-pink hue on the HWs. (5)

Notes: Identifying features illustrated.

Literature Cited: (5) Bill Oehlke’s Moth website

🔗Links: Moth Photographers Group, BugGuide.net

Hermia Underwing larva
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