Which species of mosquito is associated with crab holes?

The correct choice is associated with crab holes because Deinocerites cancer, commonly known as the crab hole mosquito, is specifically adapted to breeding in habitats that include holes created by crabs. These mosquitoes lay their eggs in the water that collects in the holes made by crabs, making them uniquely tied to these environments.

Culex nigripalpus and Anopheles crucians typically prefer other types of breeding sites like stagnant water or floodwater and do not have the specific association with crab holes. Psorophora columbiae is also usually found in temporary water bodies such as flooded fields or ditches but not specifically in crab holes. Understanding the breeding habits and environmental preferences of different mosquito species is essential in pest control and public health efforts as it helps in targeting appropriate control measures.