© 2018-19 by Neil Henning Björklund

Ditch Cr Rd, Morrow Co, July 9

Pink-Edged

Sulphur

Colias interior

Size: 1.5 - 2.0 inches wingspan

Key ID features:  Male above, solid black wing borders. Female above, smudgy FW border, can be either pale yellow or white.  Below, HW yellow, with little or no black scaling, and discal spot single-rimmed with not satellite. Usually with bright pink wing fringes. Flight pattern is more relaxed than other sulphurs.

Similar species:  Clouded Sulphurs have double ring around discal spot on HW below. Western Sulphurs greenish on HW below. Queen Alexandra's Sulphurs are larger, have more pointed wings, heavy black overscaling below and lighter pink wing borders.

 

Host plant: Various species of Vaccinium (huckleberry).

Habitat: Mid-elevation forest clearings, meadows marshes and heathlands.

Range: Central OR Cascades and Blue Mountains.

Season: Early June to mid-September

Abundance: Uncommon

 

Conservation Status: Secure