Brazilian Wanderer Spider Wasp vs Globular Tachinid

Side-by-side species comparison

Attribute Brazilian Wanderer Spider Wasp Globular Tachinid
Scientific Name Pepsis fabricius Gymnosoma rotundatum
Order Hymenoptera Diptera
Family Pompilidae Tachinidae
Size 35-55 mm 6-8 mm
Habitat Heathland Heathland
Diet Predators Parasites
Regions South America (Brazil, Argentina, Paraguay, Uruguay) Europe
Conservation Least Concern Least Concern

Brazilian Wanderer Spider Wasp

A large metallic blue-black spider wasp with bright orange wings that hunts tarantulas as food for its larvae. The female paralyzes a tarantula with her sting, then drags it to a burrow where a single egg is laid on the spider. The larva consumes the still-living spider from the inside.

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Did You Know?

Its sting is rated among the most painful of all insect stings, scoring a 4 out of 4 on the Schmidt Pain Index.

Globular Tachinid

A distinctive round-bodied parasitic fly colored bright orange-red with black markings. Parasitizes shieldbugs. One of the most easily recognized tachinid flies.

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Did You Know?

The unusually round, bright orange body makes this one of the most recognizable parasitic flies.