MOSQUITO BIOLOGY 81 



all feet, being equal and simple, like posterior ones of male. Wings hya- 

 line ; veins densely clothed with large brown scales. 



Abdomen dark brown, with indistinct, yellowish basal bands, some- 

 times with white spots at sides. Yellowish beneath with brown scales. 



Fig. XXVI. Adult of irritating mosquito, Mansonia perturbans Walk. (After 

 John B. Smith.) 1, female adult; 2, part of wing vein showing scales; 3, 

 anterior^ 4, middle, and 5, posterior claws of male tarsi (all much enlarged). 



HABITS OF THE ADULT 



Of the hundreds of examples sent in during 1903 and 1904, between 

 the last days of May and the early days of August, not one showed any 

 traces of developing ova. 



Altogether nearly 1,000 examples were examined, large and small, 

 fresh and old specimens, specimens that had fed recently, some that had 

 almost completely digested a meal of blood and some that had appar- 

 ently never fed at all ; but none with eggs in any stage of development 



