173 



*(limidiata Loew, Centur. Ill, 17. Sitka. 

 *liirta Loew, Centur. I, 21. Illinois. 



iutormedia Walker, Li^t, etc., I, p. 213 {Rhagio). Hudson Bay Territory. 

 *mystacea Macquart, Dipt. Esot. II, 1, p. 30, 1 ; Tab. Ill, bis. fig. 2. Walker, 

 List, etc., I, p. 212, and IV, p. 1153 {Rhagio), re-described, the identifica- 

 tion being doubtful. North America (not rare). 

 *ochracea Loeto, Centur. II, 3. New York. 



*punctipeunis Say, J. Acad. Phil. Ill, p. 34, 2. Wiedemann, Auss. Zw. I, p. 227, 

 Middle and Northern States (common). 

 filia Walker, List, etc., I, p. 219 {Atherix). 

 [Walker's description points rather to L. phunbea. But he says : halteres 

 with a brown knob ?] 



*I)lumbea Say, J. Ac. Phil. Ill, p. 39, 10. Wiedemann, Auss. Zw. I, p. 228. 

 Walker, List, etc., I, p. 217. Middle States. 

 griseola v. d. Wulp. Tijd. v. Ent. 2 Sec. II, p. 142, Tab. IV, fig. 5. [Loew, 

 Zeitsch, f. Ges. Naturw. 1870, p. 115.] 

 *termiiialis Loew, Centur. I, 20. New York. 



*3capularis Loew, Centur. I, 22. Illinois, New York, District Columbia. 

 Tertebrata Say, J. Acad. Phil. Ill, 38, 8, Amer. Entom. Tab. XIII. Wiede- 

 mann, Auss. Zw. I, p. 224, 7. Florida. 



*COStata Loew, Centur. II, 4. California. 

 *incisa Loew, Centur. X, 16. California. 



bitaeniata Bellardi, Saggio, etc., App. p. 26, fig. 14. Mexico. 

 cinerea Bellardi, Saggio etc., II, p. 95. Mexico. 

 polytaeniata Bellardi, Saggio etc., App. p. 27, f. 13. Mexico. 



PTIOLINA. 



Zetterstedt, Dipt. Scand. I, p. 226; Staeger, to whom the genus is attributed, 

 seems merely to have named but not characterized it. Compare also Schiner, 

 Dipt. Aust. I, p. 179. 



*fasciata Loew, Centur. IX, 65. British North America. 

 *majuscula Loeic, Centur. IX, 66. British North America. 



ATHERIX. 



Meigen, Illig. Magaz. II, p. 271, 1803. 



*Tariegata Walker, List, etc., 1, 128. Northern States, and British Possessions. 

 *1 vidua Walker, List, etc., IV, p. 1153. Hudson Bay. 



