Sonoran Blue

Philotes sonorensis
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Philotes sonorensis
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Philotes is a genus of butterflies in the family Lycaenidae. Philotes is a monotypic genus containing only Philotes sonorensis, the Sonoran blue or stonecrop blue, found in North America in California and Baja California. The habitat consists of rocky washes, outcrops and cliffs in deserts. The wingspan is 22–25 mm. The upperside is silvery blue with red spots at the outer margin of the forewings. Females also have red spots on the hindwings. Adults are on the wing in February and March, with just one generation per year. The larvae feed on Dudleya species, including D. cymosa, D. lanceolata and D. saxosa. They bore into the leaves of their host plant. Chrysalids hibernate under stones.

Sonoran Blue

Philotes sonorensis
Local Pest Control


tree pest
garden pest
crop pest

Scientific classification

kingdom: Animalia
phylum: Arthropoda
class: Insecta
order: Lepidoptera
family: Lycaenidae
genus: Philotes

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