68th B.P.S.C. (Pre) 2022

Female Anopheles can be distinguished from female Culex because it sits

aAt right angle to the surface of the substratum
bAt an angle with the substratum✓ Correct
cParallel to the surface of the substratum
dMore than one of the above
eNone of the above

Explanation

Female Anopheles can be distinguished from female Culex because it rests at an angle to the substratum. Globally, more than 3,500 species of mosquitoes are found, and they are divided into three genera—Culex, Anopheles, and Aedes. Each genus works as an intermediate host for a specific parasite. Besides this, there are sufficient differences among them in terms of food chain, shape, habitat, etc. Difference between Culex and Anopheles– Culex Their eggs are laid in clusters on the surface of water. Their larvae feed from below. Their wings are transparent. They are capable of flying long distances. Their body remains parallel to the substratum. Anopheles Eggs are laid separately (not in clusters) on the water surface. They lay eggs in a horizontal pattern. Their larvae feed from above. Their wings are spotted. They cannot fly long distances. Their body rests at an angle to the substratum.

general-science