Neavei Black Fly vs Indian Owlfly

Side-by-side species comparison

Attribute Neavei Black Fly Indian Owlfly
Scientific Name Simulium neavei Helicomitus festivus
Order Diptera Neuroptera
Family Simuliidae Ascalaphidae
Size 2-3 mm 38-50 mm wingspan
Habitat Forests Forests
Diet Herbivores Predators
Regions East Africa, including Uganda, Tanzania, Kenya India, Sri Lanka, Southeast Asia
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.

Indian Owlfly

A tropical Asian owlfly with long antennae and patterned wings. Found along forest edges and clearings in the Indian subcontinent.

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Did You Know?

Its large clubbed antennae are thought to help detect prey scent during aerial hunts.