Western tailed-blue

The western tailed-blue (Cupido amyntula) is a member of the family Lycaenidae and is seen across western North America as far north as Alaska.[1] The upperside of the male butterfly is blue while the female has a darker brown band on the outer side of the wing. The underside is riddled with black spots, with a wingspan of 2.2 to 2.9 cm. The larvae feed on Thermopsis, Astragalus, Oxytropis, Vicia, and Lathyrus species.[2]

Western tailed-blue
Mating pair
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Lycaenidae
Genus: Cupido
Species:
C. amyntula
Binomial name
Cupido amyntula
Boisduval, 1852

References


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