Neavei Black Fly vs Elm Leaf Beetle

Side-by-side species comparison

Attribute Neavei Black Fly Elm Leaf Beetle
Scientific Name Simulium neavei Xanthogaleruca luteola
Order Diptera Coleoptera
Family Simuliidae Chrysomelidae
Size 2-3 mm 5-7 mm
Habitat Forests Woodlands
Diet Herbivores Herbivores
Regions East Africa, including Uganda, Tanzania, Kenya Europe, introduced worldwide
Conservation Least Concern Not Evaluated

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.

Elm Leaf Beetle

A yellowish-green beetle with dark stripes along its elytra. Both adults and larvae feed on elm leaves, sometimes causing severe defoliation.

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Did You Know?

Heavy infestations can strip an elm tree of nearly all its leaves in a single season.