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Fruit Fly

Euaresta stigmatica

Watercolor © by Michael Plagens

The fruit fly adult is shown at upper right near the flowering/fruiting inflorescence. The host plant is Canyon Ragweed (Ambrosia ambrosioides). Other organisms associated with this plant and shown above include a red and black hispine leaf beetle. The stippled spots on leaf at lower left represent Gall Mites.

Tephritidae -- Fruit Fly Family

Fruit flies of the family Tephritdae usually dispay characteristic patterns on their wings. Unlike pomice flies, the common fruit fly of overripe fruit, tephritidae feed in developing fruit. The species shown here developes within the developing seed inside the burr and is found associated with the other Ambrosia species as well including common ragweed. The feeding larvae destroy the seeds and so this insect has been studied as possible biological control agent for ragweeds that cause hayfever.

Euaresta fly resting on Encelia inflorescence.

This adult Euaresta fly is alighted on an inflorescence of Brittlebush (Encelia farinosa).

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Copyright Michael J. Plagens, 1999-2009