290 



Hominoxious Arthropods 



163. Wings of Diptera. (a) Anopheles; (&) Prosimulium ; (c) Johannseniella: (d) Phle- 

 botomus (After Doerr and Russ): (e) Tersesthes (after Townsend); (/) Ta- 

 banus; (g) Symphoromyia ; (A) Aphiochaeta ; (») Eristalis; (J) Gastropnilus; 

 (fe) Fannia; (J) Musca. 



