Western Encephalitis Mosquito vs Aquatic Snail-killing Fly
Side-by-side species comparison
| Attribute | Western Encephalitis Mosquito | Aquatic Snail-killing Fly |
|---|---|---|
| Scientific Name | Culex tarsalis | Sepedon sphegea |
| Order | Diptera | Diptera |
| Family | Culicidae | Sciomyzidae |
| Size | 4-6 mm | 5-9 mm |
| Habitat | Wetlands | Wetlands |
| Diet | Blood Feeders | Predators |
| Regions | Western North America, from Canada to Mexico | North America |
| Conservation | Least Concern | Least Concern |
Western Encephalitis Mosquito
A medium-sized mosquito with a distinctive white band on the proboscis and banded legs. It is the most important vector of Western equine encephalitis and St. Louis encephalitis in western North America. It breeds in a wide variety of sunlit and shaded water sources.
Did You Know?
Its feeding behavior shifts seasonally from birds in spring to mammals in late summer, which drives encephalitis virus spillover to humans.
Aquatic Snail-killing Fly
A slender marsh fly with a distinctly pointed abdomen and yellowish-brown coloring. Larvae are aquatic predators of freshwater snails, attacking them underwater.
Did You Know?
A single larva may consume multiple snails during its development, making it an effective natural snail control agent.