Neavei Black Fly vs Giant Wood Hoverfly

Side-by-side species comparison

Attribute Neavei Black Fly Giant Wood Hoverfly
Scientific Name Simulium neavei Temnostoma vespiforme
Order Diptera Diptera
Family Simuliidae Syrphidae
Size 2-3 mm 14-18 mm
Habitat Forests Forests
Diet Herbivores Wood Feeders
Regions East Africa, including Uganda, Tanzania, Kenya Europe
Conservation Least Concern Least Concern

Neavei Black Fly

A small black fly whose larvae uniquely attach to freshwater crabs rather than rocks or vegetation. It is a vector of river blindness in East Africa, particularly in forested areas. The association with crabs makes it vulnerable to control by removing the crab hosts.

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Did You Know?

Eliminating the freshwater crabs that carry its larvae successfully eradicated onchocerciasis from parts of East Africa.

Giant Wood Hoverfly

A large, wasp-mimicking hoverfly with yellow and black banding and a slender waist. Its larvae develop in decaying wood of fallen trees in old-growth forests.

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Did You Know?

It is considered an indicator species for ancient woodland due to its dependence on large volumes of decaying timber.