Sonoran Blue
Common NameSonoran Blue
Scientific NameEuphilotes sonorensis
FamilyLycaenidae
SubfamilyPolyommatinae
Wingspan (mm)22
Wing Patternspotted
Primary Colorsblue, orange, black, grey
HabitatArid scrublands, chaparral, desert washes, rocky hillsides
Geographic RangeSouthwestern United States (Arizona, California, Nevada, Utah) and Baja California, Mexico
Host PlantsEriogonum fasciculatum, Eriogonum inflatum, Eriogonum spp.
Flight PeriodMarch to May
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesEggs are laid on the flower heads of host buckwheat plants. Larvae feed on flowers and seeds, and pupae overwinter, often at the base of the host plant.
Identification TipsMales have a bright blue upperside, while females are duller. Key identification features include the distinct row of orange submarginal spots on the greyish-blue hindwing underside, and its association with *Eriogonum* host plants in arid regions.
Description
A small, vibrant blue butterfly with a greyish-blue underside featuring a prominent row of orange submarginal spots and black dots on the hindwings.
