South American Robber Fly vs Nuttall Blister Beetle

Side-by-side species comparison

Attribute South American Robber Fly Nuttall Blister Beetle
Scientific Name Microstylum magnum Lytta nuttalli
Order Diptera Coleoptera
Family Asilidae Meloidae
Size 30-40 mm 15-25 mm
Habitat Grasslands Grasslands
Diet Predators Herbivores
Regions South America, Central America Western North America
Conservation Least Concern Least Concern

South American Robber Fly

A large, elongate robber fly from tropical regions with a slender abdomen and long spiny legs. It hunts from exposed perches and can catch large prey relative to its body size.

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Did You Know?

Some tropical Asilidae species are among the largest predatory flies in the world, rivaling small dragonflies in wingspan.

Nuttall Blister Beetle

A brilliant metallic purple-blue blister beetle found in the prairies and grasslands of western North America. Adults congregate on legume flowers in large numbers.

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Did You Know?

Periodic mass outbreaks can strip entire fields of alfalfa flowers within days.