Explain the mosquitoes of arthropoda which belongs to non chordate phyla?

The mosquitoes are also known as culex. They occur in the tropical countries like India. They occur in marshy areas. The male mosquito has plants as their food source but the female mosquitoes have blood as their food source. Their saliva is rich in anticoagulant. They have piercing and sucking mouth parts. There are no mandibles in the male mosquito. They have 4 wings. The metathorax has balancers which are club shaped and are rudimentary. There is Johnston’s organ in the second segment of antennae which performs the function of an ear by receiving the sound vibrations. There are a lot of differences between culex and anopheles. In culex eggs are laid vertically in clusters on the surface of water. They have a shape of cigar. They are laid in the untidy areas and have no lateral air floats. The female lays around 2 to 3 hundred eggs. While, in anopheles eggs are laid horizontally and occur singly on the surface of water. They have a shape of robust. They are laid in the tidy areas and have a couple of lateral air floats. The female lays around hundred eggs. The larva of culex is bottom feeder with a long respiratory siphon. The position of larva is oblique. The larva of anopheles is surface feeder with no respiratory siphon. The position of larva is parallel. The pupa of culex is grey in color with long respiratory trumpets. The adult culex has no dark spots on the wings. They are parallel to the surface when they rest. The pupa of anopheles is greenish in color with short respiratory trumpets. The adult anopheles has dark spots on the wings. They are at an angle of 45 degree to the surface when they rest. They cause the malarial fever which is transmitted by the female anopheles. The filaria is transmitted by culex. There is a condition known as encephalitis which occurs in a man. It causes fever, headache, drowsiness and inflammation of the brain system. Culex also plays an important role in the transmission of this virus.