REPORT ON MOSQUITOES. 



213 



Description of the Adult. 



This is a. large brown mosquito, measuring- from 5.5 to 6.5 

 mm., ;=^ .22 to .26 of an incii in length, exclusive of the beak, 

 which is 2.5 mm. long. The head is brown, with numerous 

 creamy scales over the surface and extending between the eyes, 

 and some black ones in the posterior part directed backwards. 



Figure 62. 



Culex perturbans : i, female adult; 2, part of wing vein showing scales; 3, anterior; 

 4, middle; and 5, posterior claws of male tarsi: all enlarged. (Original.) 



The proboscis is dark brown with a yellowish central band. The 

 palpi in the female are normal in shape, deep brown, with some 

 yellowish scales; the terminal joint is very small, rounded and 

 with three or four long bristles. In the male the palpi are only 

 slightly dilated, the first two joints together as long- as the pro- 



