Blood-red Longhorn vs Neavei Black Fly

Side-by-side species comparison

Attribute Blood-red Longhorn Neavei Black Fly
Scientific Name Callidium coriaceum Simulium neavei
Order Coleoptera Diptera
Family Cerambycidae Simuliidae
Size 10-17 mm 2-3 mm
Habitat Forests Forests
Diet Wood Feeders Herbivores
Regions Central and Southern Europe (Alps, Carpathians) East Africa, including Uganda, Tanzania, Kenya
Conservation Least Concern Least Concern

Blood-red Longhorn

A flat-bodied cerambycid with a rich reddish-brown color and a leathery texture to its elytra. It is found in conifer forests of Central and Southern Europe. Larvae develop in dead fir and spruce wood.

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Did You Know?

This species is considered a relict of ice age refugia and is restricted to cool mountain forests.

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.