S. C. Porter 



a. House-gnat, Culex pipiens, adult female 

 at rest ( x 5-8) 



S. C. Porter 

 b. Aedes sp., adult female at rest ( x 5-8) 



J. G. Bradbury J- ^ • Bradbury 



c. Culex pipiens, larva ( x 9-5) d. Culex pipiens, egg raft ( x 14) 



Plate XXX MOSQUITOES WHICH FEED OX BIRDS 



