1 MYCETOPHILIDAE. 



*onnsta Loew, Centur. IX, 17. Distr. Columbia. 

 *tantilla Loew, Centur. IX, 21. Distr. Columbia. 



Popocatepetl! Bellardi, Saggio etc. I, 11. Mexico. 



Observation. For Sc. bimaculata Loew, Centur. VII, 9, see 

 Neompheria didyma. 



Lasiosoma. 



Winnertz, Pilzm. 1863. 



fasciata Say, Journ. Ac. Phil. Ill, 26, 1; Cocipl. Wr. II, 50 (Sciopluln] ; 

 Wiedemann, Auss. Zw. I, 62, 2 (id.). - - Pennsylvania ; Maryland. 



* quadratula Loew, Centur. IX, 22. Maine. 



*pallipes Say, Long's Exp. App. 361; Compl. Wr. I, 245 (SciopJtila); 

 Wiedemann, Auss. Zw. I, 63, 4 (id.). -- N. W. Territory (,Say). 



Tetragoneura. 



Winnertz, Stett. Ent. Z. 1846, 18. 



This genus occurs in the U. States according to Loew, Monographs etc. 

 1, 14, although no species has, as yet, been described. 



Endicrama. 



Loew, Centur. IX, 23; 1869. 

 *obuml>rata Loew, Centur IX, 23. - - New York. 



Syntcmna. 



Winnertz, Pilzm. 1863. 

 *polyzona Loew, Centur. IX, 24. -- Middle States. 



Plitliiaiia. 



Winnertz, Pilzm. 1863. 



* taiiypus Loew, Centur. IX, 26. - - New York. 



Boletiiia. 



Staeger, Krojer's Tidskr. Ill, 234, 1840. 



*tricincta Loew, Centur. IX, 25. -- Maryland, Wisconsin. 

 groenlamlica Staeger, Groenl. Antliater 17, 18; Holmgren, Ins. Nord- 



groenl. - - Greenland. 



arctiea Holmgren, Ins. Nordgroenl. Oefv. Kongl. Vetensk. Acad. Finn 

 1872, No 6. Northern Greenland. 



Gnoriste. 



Meigen, System. Beschr. I, 1818; Winnertz, Pilzm. 778. 



* megarrhina Sacken, Western Diptera, 193. Yosemite Valley, Cal. 



Ifeogrlaphyroptem* 



Glaphyroptera Winnertz, Pilzm. 1863. ( 9 ). 



*bivittata Say, J. Acad. Phil. VI, 152 (Lcja) ; Compl. Wr. II, 351. 



Indiana (Say); Atlantic States. 



