Western Encephalitis Mosquito vs Orthoclad Stream Midge
Side-by-side species comparison
| Attribute | Western Encephalitis Mosquito | Orthoclad Stream Midge |
|---|---|---|
| Scientific Name | Culex tarsalis | Orthocladius oblidens |
| Order | Diptera | Diptera |
| Family | Culicidae | Chironomidae |
| Size | 4-6 mm | 3-5 mm |
| Habitat | Wetlands | Rivers & Streams |
| Diet | Blood Feeders | Detritivores |
| Regions | Western North America, from Canada to Mexico | Europe, 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.
Orthoclad Stream Midge
A small non-biting midge typical of cold running water habitats. Larvae build silk tubes on stone surfaces in stream riffles.
Did You Know?
Orthocladiinae midges are often the most species-rich insect group in pristine mountain streams.