Yellow Swarming Fly vs Congo Giant Ground Beetle

Side-by-side species comparison

Attribute Yellow Swarming Fly Congo Giant Ground Beetle
Scientific Name Thaumatomyia notata Anthia duodecimguttata
Order Diptera Coleoptera
Family Chloropidae Carabidae
Size 2-2.5 mm 35-55 mm
Habitat Grasslands Grasslands
Diet Predators Predators
Regions Europe Sub-Saharan Africa (widespread from Senegal to Ethiopia and South Africa)
Conservation Least Concern Least Concern

Yellow Swarming Fly

A tiny yellow fly famous for forming enormous hibernation aggregations in buildings, sometimes numbering millions. Larvae are predatory on root aphids in grassland.

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Did You Know?

Can form hibernation clusters of millions in attic spaces, with individual aggregations weighing several kilograms.

Congo Giant Ground Beetle

A massive black ground beetle with twelve white spots on its elytra, found across sub-Saharan Africa. It is one of the largest carabid beetles on the continent.

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Did You Know?

This beetle can deliver a painful bite and simultaneously spray formic acid from its abdomen, using a dual defense strategy that makes it formidable for predators to handle.