© 2018-19 by Neil Henning Björklund

Bachelor Mtn, Linn Co, July 13

Hoffmann's

Checkerspot

Chlosyne hoffmanni

Size: 1.25 to 1.75 inch wingspan

Key ID features:  Above, bands of orange and yellow-orange, separated by black lines and patches. Median band usually lighter.  Basal 1/3 of HW above is mostly black with little orange.  Below bands of off-white and brick red with black veins and edges.  Red spots in postmedian band often longer than in similar species.

Similar species: Northern Checkerspot does not have the large black area on the basal HW above, and below postmedian band spots are generally shorter than in Hoffman's.

Hostplant: Asters, including western showy aster (Eurybia conspicua) and Cascade aster (Eucephalus ledophyllus).

Habitat: Moist montane meadows, canyons, streamsides, clearings in conifer forests. 

Range: Cascade Range above 1000 feet.

Season: Early May to early September

Abundance: Common 

 

Conservation Status: Secure