S.N. |
Anopheles |
Culex |
A. |
Egg
|
Egg |
1. |
They are laid horizontally and singly on the water surface. |
They are laid vertically in cluster (or raft like structure) on the water surface. |
2. |
About 40-100 eggs are laid in fresh and clean water. |
About 200-300 eggs are laid in dirty water. |
3. |
The eggs are boat or barrel shaped. |
They are cigar shaped. |
4. |
Each egg has 2 lateral air floats that help them float on the water surface. |
Lateral air floats are absent. |
B. |
Larva |
Larva |
1. |
They are surface feeder. |
They are bottom feeder. |
2. |
During intake of air, head lies horizontally, parallel to the water surface. |
It hangs downward at an angle with the water surface. |
C. |
Pupa |
Pupa |
1. |
They are green in color with small cephalothorax. |
They are colorless with a big cephalothorax. |
2. |
They have short respiratory trumpets. |
They have long respirator trumpets. |
D. |
Adult |
Adult |
1. |
It has a slender body with delicate legs. |
It has a well-built body with stout legs. |
2. |
Its wings have dark spots and cannot fly for long distance. |
Its wings lack spots can fly for long distance. |
3. |
At rest, the body is inclined at an acute angle to the surface. |
At rest, the body stands almost parallel to the surface. |
4. |
They transmit malarial fever. |
They transmit filarial fever. |