Which is the most important salt marsh mosquito inhabiting flood water environments?

• A. Aedes vexans
• B. Ochlerotatus taeniorhynchus
• C. Culiseta melanura
• D. Ochlerotatus triseriatus

Answer: (B)

The key idea is recognizing salt marsh floodwater mosquitoes and their habitat. Ochlerotatus taeniorhynchus is the salt marsh specialist that breeds in brackish, tidal floodwaters in coastal marshes. It thrives when tides flood the marsh pools, producing large populations, and its adults are aggressive biters. This combination makes it the most important salt marsh floodwater mosquito in coastal Georgia, and it’s a major vector concern for diseases like Eastern Equine Encephalitis.

The other species don’t fit this habitat focus: Aedes vexans is more tied to inland floodwaters from rain; Culiseta melanura concentrates in freshwater woodland swamps; Ochlerotatus triseriatus breeds in tree holes and artificial containers.