Simulium spp. (BLACKFLIES)

Adult:

Larvae are aquatic, and live in swift-moving streams:

Phylogeny: Order Diptera

Metamorphosis: Complete

Geographical location: Cosmopolitan

Organs affected: Skin

Symptoms and clinical signs: Bites, which are painless at first, bleed profusely. Swelling, pruritis, and pain develop later.

Diseases transmitted: Onchocerciasis

Treatment/control: Residual insecticide