Which two mosquito species are known to be found in crab holes?

The two mosquito species known to be found in crab holes are Deinocerites cancer and Culex opisthopus. This association with crab holes is primarily due to their breeding habits; these mosquitoes utilize the unique environments created by crab burrows in coastal regions. The moist microhabitat provides suitable conditions for laying eggs and for the larvae to develop.

Deinocerites cancer specifically has a notable preference for these habitats, often found in the intertidal zone where crabs dwell. Similarly, Culex opisthopus is known for its adaptability to coastal regions and can often exploit the same breeding sites. This ecological connection is significant in public health, as it helps in understanding and monitoring mosquito populations and their potential role in disease transmission.

The other species listed do not have the same association with crab holes, as their breeding habits tend to focus on other water sources, such as standing water in containers or natural bodies of water. Thus, the correct choice highlights an important ecological relationship that is relevant for understanding mosquito ecology and management in public health.