Onchocerciasis Black Fly vs Southern Salmonfly

Side-by-side species comparison

Attribute Onchocerciasis Black Fly Southern Salmonfly
Scientific Name Simulium damnosum Neoperla clymene
Order Diptera Plecoptera
Family Simuliidae Perlidae
Size 2-4 mm 12-18 mm
Habitat Rivers & Streams Rivers & Streams
Diet Blood Feeders Predators
Regions Africa North America
Conservation Least Concern Least Concern

Onchocerciasis Black Fly

The primary vector of river blindness in West and Central Africa. Larvae thrive in oxygen-rich rapids of tropical rivers.

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Did You Know?

This species complex transmits the parasitic worm Onchocerca volvulus, which has blinded millions across Africa.

Southern Salmonfly

A medium-sized stonefly of warm southeastern streams with nocturnal adults. Nymphs are active predators in gravel substrates.

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Did You Know?

Adults are strongly attracted to lights and are often collected far from water at night.