Kingdom Animalia Subphylum Hexapoda Order Lepidoptera Rank Species | Phylum Arthropoda Class Insecta Family Lycaenidae | |
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Similar Euphilotes, Sand Mountain blue, Euphilotes ancilla, Euphilotes rita, Hesperopsis libya | ||
Euphilotes pallescens, the pale blue, pallid blue or pallid dotted blue, is a species of butterfly of the Lycaenidae family. It is found in the United States in southeastern California, Nevada, southern Utah and northern Arizona.
The wingspan is 16–21 mm. The upperside of the males is pale blue, while the upperside of the females is grayish brown with gray overscales on the wing bases. The underside is almost white with black spots. There usually is an orange marginal hindwing band. Adults are on wing from July to September in one generation per year. They feed on the flower nectar of Eriogonum species.
The larvae feed on the flowers and fruits of Eriogonum species, including E. kearneyi, E. microthecum and E. plumatella. The larvae are tended by ants.