MOSQUITO BIOLOGY 



77 



Fig. XXV. Larva of swamp mosquito. Aedes vexans Meig. (After John B 

 Smith.) 1, larva; 2, head from below; 3, palpus; 4, mandible; 5, antenna- Q 

 mentum; 7, terminal joints and siphon; 8, single scales from below and side- 

 9, siphonal spines showing variation (all much enlarged). 



