Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Ridings' Satyr
Neominois ridingsii (W.H. Edwards, 1865)


Family: Nymphalidae
Subfamily: Satyrinae
Identification: Upperside is gray with cream-colored patches across both wings; forewing has 2 black spots. Underside is similar but lighter.
Wing Span: 1 1/2 - 2 3/16 inches (3.8 - 5.6 cm).
Life History: Males perch in the morning on small hills or mesas to seek females. Eggs are laid singly at the top of blue grama grass or on other plants. Caterpillars eat grass blades and pupate underground. Third- and fourth-stage caterpillars hibernate. Biennial in Tuolumne County, California.
Flight: One brood from June-July.
Caterpillar Hosts: Blue grama grass (Bouteloua gracilis).
Adult Food: When adults feed, which is infrequently, they favor nectar of yellow composites.
Habitat: Short-grass prairie, intermountain areas, and grasslands with some areas of bare soil.
Range: Southern Alberta east to southwest Manitoba, south to central Arizona and central New Mexico, west to eastern California.
Conservation: Not usually required.
NCGR: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
Management Needs: None reported.
Comments: NULL

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