Which mosquito species is involved in the transmission of Eastern Equine Encephalitis (EEE) and West Nile virus?

The correct choice highlights a mosquito species that plays a significant role in the transmission of Eastern Equine Encephalitis (EEE) and West Nile virus. Understanding the biology and behavior of mosquitoes is crucial for recognizing their role in disease transmission.

Coquillettidia mansonia perurbans, often linked to EEE and West Nile virus, is significant because it primarily feeds on birds, which are key hosts for these viruses. Birds are integral to the transmission cycle of these encephalitis viruses, and mosquitoes that have a preference for feeding on avian hosts are critical for the viruses' life cycles.

Culex pipiens is another species known for transmitting West Nile virus, but it may not be the primary vector for EEE. Aedes aegypti is primarily associated with other diseases such as dengue and Zika virus, rather than EEE or West Nile. Psorophora ciliata is not typically recognized as a major vector for these specific encephalitis viruses either.

Thus, choosing Coquillettidia mansonia perurbans reflects an understanding of its ecological role and significance in the transmission of both Eastern Equine Encephalitis and West Nile virus, which is critical for vector control strategies and public health interventions.