Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Miami Blue
Cyclargus thomasi (Clench, 1941)

Family: Lycaenidae
Subfamily: Polyommatinae
Identification: Upperside mostly blue; female hindwing with orange spot at lower edge. Underside of both sexes with 2 eyespots on the outer margin and a wide white submarginal band.
Wing Span: 7/8 - 1 1/8 inches (2.2 - 3 cm).
Life History: Eggs are laid singly on flower buds of host plant. Caterpillars feed on flowers and may live inside the pods, eating seeds.
Flight: Throughout the year in Florida. Adults are in reproductive diapause during the winter generation from December-April.
Caterpillar Hosts: Balloon vine (Cardiospermum halicacabum) in the Sapindaceae family, possibly snowberry (Chiococca alba), and various legumes.
Adult Food: Flower nectar.
Habitat: Openings and edges of tropical hardwood hammocks.
Range: Florida Keys and West Indies. Formerly in southern peninsular Florida.
Conservation: Loss of habitat due to urbanization has extirpated this butterfly on the Florida mainland. All Florida Keys populations should be protected.
NCGR: G3 - Very rare or local throughout its range or found locally in a restricted range (21 to 100 occurrences). (Threatened throughout its range).
Management Needs: Preserve habitats of balloon vine and nectar sources.
Get your BAMONA Gear!

Hoodies and t-shirts in two designs!

Advertise with us!

Do you have a product or service that you think would interest BAMONA users? If you would like to advertise on this website, contact us by email, or use the contact form and select the "Advertising" category.