REPORT ON MOSQUITOES. 



173 



ninth segment is rather stout, dorsal tufts and ventral fan as in 

 others, and with the dorsal plate a little larger. The tracheal 

 gills are short and stout, less than half the length of the other 

 two species. 



PSOROPHORA CILIATA, FABR. 



Tlic Fringe-legged Mosquito. 



Figure 50. 



Psorphora ciliata: i, female adult; z, the palpus; 3, anterior, and 4, posterior claws 

 of male: enlarged. (Original.) 



This is by far the largest of our mosquitoes and is brownish 

 black in color; the legs are clothed with erect black scales and 



