South African Robber Fly vs Bat Fly

Side-by-side species comparison

Attribute South African Robber Fly Bat Fly
Scientific Name Alcimus tristrigatus Penicillidia conspicua
Order Diptera Diptera
Family Asilidae Nycteribiidae
Size 18-26 mm 2-5 mm
Habitat Heathland Caves
Diet Predators Parasites
Regions Southern Africa Europe, Asia, Africa
Conservation Least Concern Least Concern

South African Robber Fly

A large, hairy robber fly endemic to southern Africa's fynbos and savanna. It perches conspicuously on shrubs while scanning for prey.

💡

Did You Know?

Southern Africa harbors one of the richest robber fly faunas in the world.

Bat Fly

A bizarre wingless fly that lives exclusively as an ectoparasite on bats. It has lost its wings entirely and scurries through bat fur like a spider.

💡

Did You Know?

These flies have evolved to look and move like spiders, having completely lost their wings and flattened their bodies for life in bat fur.