Tropical Bat Fly vs Variable Cuckoo Bumble Bee

Side-by-side species comparison

Attribute Tropical Bat Fly Variable Cuckoo Bumble Bee
Scientific Name Cyclopodia horsfieldi Bombus variabilis
Order Diptera Hymenoptera
Family Nycteribiidae Apidae
Size 3-5 mm 15-22 mm
Habitat Caves Grasslands
Diet Parasites Parasites
Regions South Asia, Southeast Asia, Australia Central and Eastern North America
Conservation Least Concern Critically Endangered

Tropical Bat Fly

A bizarre wingless bat fly with extremely long spider-like legs and a flattened body. It is a specialist parasite of fruit bats in tropical Asia.

💡

Did You Know?

Its legs are so long relative to its body that it can crawl rapidly through bat fur while maintaining grip during flight.

Variable Cuckoo Bumble Bee

A rare social parasite bumble bee that takes over colonies of other Bombus species in North America. Queens invade host nests, kill the resident queen, and enslave her workers.

💡

Did You Know?

It produces no workers of its own and depends entirely on the labor of its host species to raise its offspring.