Gallinipper Mosquito vs Mexican Cactus Fly

Side-by-side species comparison

Attribute Gallinipper Mosquito Mexican Cactus Fly
Scientific Name Psorophora ciliata Copestylum mexicanum
Order Diptera Diptera
Family Culicidae Syrphidae
Size 7-12 mm 12-18 mm
Habitat Farmland Deserts & Drylands
Diet Predators Nectar Feeders
Regions Eastern North America, Central and South America North America, Central America
Conservation Least Concern Least Concern

Gallinipper Mosquito

One of the largest mosquitoes in North America, with shaggy legs covered in dark and pale scales. It delivers an exceptionally painful bite and breeds in temporary rain pools after heavy storms. Its larvae are predatory, feeding on other mosquito larvae in their shared breeding habitat.

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Did You Know?

It is so large and bites so aggressively that early American settlers gave it the folk name 'gallinipper,' meaning something that nips gallon-sized bites.

Mexican Cactus Fly

A large, dark hoverfly whose larvae develop in decaying cactus tissue. Adults are strong fliers visiting flowers in arid landscapes.

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Did You Know?

Larvae play an important ecological role in recycling decaying cactus material.