22 CHIKONOMIDAE. 



crassinervis Zetterstedt, Ins. Lanponica; Dipt. Scandin. IX, 3599, 5; 

 Staeger, Groenl.Antliater, p. 354, 11. Greenland; also in Lapland. 



* docedens Walker, List, etc. I, 22. - - Huds. B. Terr. 



* flnvicinctus Loew, Centur. I, 2. - - Pennsylvania. 



fiitilis v. d. \Yulp, Tijdsclir. voor Entom. 2 (1 Ser. II, 130. Wisconsin. 

 *liirtipennis Loew, Centur. VII, 6. - - Maine. 



pictipennis Zetterstedt, Ins. Lapponica 818, 5; Staeger, Groenl. Ant- 



liater. Greenland. 



*pilosellus Loew, Centur. VII, 7. - - Dist. Columbia. 

 *pinguis Loew, Centur. I, 1. -- New York. 



* pnsillns Loew, Centur. VII, 5. - - Distr. Columbia.' 



* scapularis Loew, Centur. VII, 1. - - Distr. Columbia. 

 *thoracicus Loew, Centur. VII, 3. - - Distr. Columbia. 



tibialis Staeger, Groenl. Antliater. -- Greenland. 



tibialis Say. .1. Acad. Pbil. Ill, 15, 2; Compl. Wr. U, 43; Wielemai n, 



Auss. Zw. I, 20, 4. - - Pennsylvania. 

 *tricolor Loew, Centur. I, 3. - - New York. 



tul'pis Zetterstedt, Ins. Lapp. 811, 8 (Chironomus) ; Staeger, Groenl. 

 Antl. 350, 3 (?? query by Zetterstedt, Dipt. Scand. IX, 35)6). 

 Lapland; also Greenland? 

 *humeralis Loew, Centur. VII, 2. -- Cuba. 



Observation: Tanypus monil-is Lin., a european sppoio?, 

 occurs in North-America (Wisconsin) according to Van der Wulp, 

 Tijdsclir. v. Entom. 2 d Ser. II, 126. T. amntlcttus Say looks very 

 much like T. monilis Lin., and if Mr. Van der Wulp's identifica- 

 tion is correct, I should have taken both for the same species. 



Chasmatoiiotus. 



Loew, Centur. V, 1; 1864. 



"nniinacnlatus Loew, Centur. V, 1. - White Mts , N. H. 

 *biniaciilatus 0. Sacken, Western Diptera, 191. Catskill, Moui.tain 

 House, N. Y. ; Quebec (Can.). 



Ccratopogon. ( 24 ). 

 Meigen, Illig. Magaz. II; 1803. 



*albiventris Loew, Centur. I, 7. Georgia. 



* argentatns Loew, Centur. I, 5. - - Distr. Columbia. 

 basalis Walker, List, etc. I, 27. -- Trenton Falls. 



* biniaciilatus Loew, Centur. I, 6. - - Distr. Columbia. 

 *festiviis Loew, Centur. I, 13. - - Pennsylvania. 

 *lougipeimis Loew, Centur. I, 10. Pennsylvania. 



* lineatns Meigen, Syst. Beschr. etc. I, 80. Europe and North America 



[the latter according to Loew, in Siilim. Journ. N. Ser. XXXV11, 317J. 



obscurns Walker, List etc. I, 26. - Huds. B. Terr. 

 *opacus Loew, Centur. I, 9. - - Distr. Columbia. 



parvtis Walker, List, etc. I, 26. - - Huds. B. Terr. 

 *plebejiis Loew, Centur. I, 11. Pennsylvania. 

 *rufus Loew, Centur. J, 12. Pennsylvania. 



