Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Intermediate Dotted-Blue
Euphilotes intermedia (Barnes & McDunnough, 1917)

Family: Lycaenidae
Subfamily: Polyommatinae
Identification: Male blue with orange hindwing aurora restricted to outer corner. Female brown with orange aurora band. Underside with weak black line at margins of wings. Orange band at outer margin of hindwing often broken into separate elements.
Wing Span: 3/4 inches (1.9 - 2.0 cm).
Life History: Males patrol all day near host plants to find receptive females. Eggs are laid singly on host plant flowers; caterpillars eat flowers and fruits, and are protected by ants. Chrysalids hibernate in sand or leaf litter.
Flight: One flight; late June to mid-August.
Caterpillar Hosts: Sulphur-flower and Lobb\'s Buckwheat.
Adult Food: Flower nectar especially that from Eriogonum species.
Habitat: Rocky slopes and flats.
Range: Western Oregon south to northern California. Isolated population in northern Arizona.
Conservation: No needs reported.
NCGR: G4, 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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