Which mosquito species is known for transmitting malaria?

Anopheles quadrimaculatus is the correct choice for the species known for transmitting malaria. This mosquito belongs to the Anopheles genus, which includes several species recognized as primary vectors for the malaria parasite, particularly Plasmodium species. These mosquitoes have specific ecological and behavioral traits that enable them to effectively spread malaria. Anopheles quadrimaculatus is especially notable in the southeastern United States and has adapted well to reproductive conditions that facilitate the lifecycle of the malaria parasite.

In contrast, the other species mentioned are not primary vectors for malaria. Aedes aegypti primarily transmits diseases such as dengue fever, Zika virus, and chikungunya, while Culex nigripalpus is more commonly associated with West Nile virus and other encephalitides. Culiseta melanura is primarily involved in the transmission of eastern equine encephalitis rather than malaria. Understanding the specific mosquito vectors is crucial for public health efforts in controlling and preventing the spread of diseases like malaria.