Egg, larva, and pupa stages of Anopheline and Culicine mosquitoes

(A) Culex mosquitoes lay their eggs in groups ("rafts") while Aedes and Anopheline mosquitoes lay their eggs individually. In addition, Anopheline eggs have characteristic "floats."
(B) Culicine larvae maintain a position vertical to the water surface and breathe via siphon tubes extending to the water surface; the Culex siphon is longer than the Aedes siphon. In contrast, Anopheles larvae lie in a horizontal position parallel to the water surface and do not have a siphon.
(C) In the pupa stage, the head and thorax are fused to form a comma-shaped cephalothorax; during this stage, there are no distinguishing characteristics between the genera.