Question

The difference between Culex and Anopheles is
A. Culex sits antiparallel to the substratum
B. Anopheles sits at an angle to the substratum
C. Anopheles sits parallel to the substratum
D. Culex sits at an angle to the substratum

Answer 1

A species of insect that possesses a thin body, six legs and a pair of scaled wings is a mosquito. They have mouth parts that bite and a pair of wide compound eyes that connect with each other. Culex and Anopheles eggs differ in shape, their larvae vary in feeding, and their adults have unique wings.

Complete answer: Worldwide, about 3,500 species of mosquitoes have been found, and they are categorised into three genera: Culex , Anopheles and Aedes. Each genus functions as a specific parasite's intermediate host. The three genera are, therefore, vectors of diseases. During the blood-feeding of mosquitoes, the propagation of the disease also takes place.

Culex	Anopheles
Eggs are produced on the water surface but in clusters and these are cigar-shaped.	Eggs are produced on the water individually on the surface in the surface of the water in clusters. They lay an egg in a horizontal pattern.
Their larva is feeder from the bottom.	Their larva is feeder from the surface.
They have transparent wing	They have spotted wings.
They are able to fly long distances.	They are unable to fly long distances.
Their body rests parallel to the substratum.	Their body rests at an angle to the substratum.

Hence, the correct answer is option B.

Note:Culex behaves as an intermediate host of the filarial nematodes and West Nile virus, while Anopheles also behaves as the definitive host of the malaria parasite; this is the major distinction between Culex and Anopheles.