Yes and no. Like snakes and amphibians, insects are cold-blooded, and cannot regulate their own body temperatures. Because they are dependent upon their environment to maintain a sufficient body temperature, mosquitoes "disappear" in regions subject to cold winters or when mosquito control products are used heavily. Female mosquitoes that survive into the onset of winter can go into hibernation; if they mated in the fall, they can emerge ready find the first available blood meal, and then lay their eggs, in the spring. Some mosquito species can lay eggs which survive extreme weather, such as cold, ice, and drought. Moisture produced by spring rains and melting snow and ice will cause these eggs to hatch, and the mosquitoes will progress through larval, pupal, and finally adult stages to begin the cycle anew. In the warm and humid climates of the Southeast and Gulf Coast, mosquitoes can thrive year-round.  The use of mosquito control products is vital.