62 LEPTIDAE. 



T. ctmfitsus, List, etc. I, 147. Georgia. 



T. coiitmniims Dipt. Saund. 24. United States. 



T. dtriratus List, etc. I, 151. North America. 



T. duplex List, etc. V, 173 (Synom. T. imitans, List, etc. I, 173. Hnds. 

 B. Terr. 



1. frontalis List, etc. I, 172. Nova Scotia. 



T. fulvofrater List, etc. I, 181. Illinois. 



T. incisus Dipt. Saund. 26. Cap. Breton. 



T. mtermedius List, etc. I, 173 Huds. B. Terr. 



T. leucomelas List, etc., I, 175. Georgia. 



T. mutatus Dipt. Saund. I, 23. United Staates. 



T. patulus List, etc. I, 175. Georgia. 



T. proximws List, etc. I, 147. Florida. 



T. rufofrater Dipt. Saund. I, 26. Georgia. 



T. scitus List, etc. I, 181. 



Some remarks about these species will be found in 0. Sacken, Prodrome etc. 

 II, 472 474. In the notes, which I took at the Brit. Mus. I remarked 

 that Tab. patulus and derivatus are unknown to me. 



Mr. Walker's identifications of the species of other author; are very often in- 

 correct, and hence the comparisons to such spe^es, occurring in his 

 descriptions , are not to be relied on. Thus T .b. mtlanocerus Wied., 

 bicolor Wied., abdomitialis Fabr. etc. were incorrectly identified by him 

 in the Brit. Museum. 



Atylotns. 



0. Sacken, Prodrome etc. II, 426, 1876; definition amended in the 

 Western Diptera, 215. 



* bicolor Wiedemann, Dipt. Exot. I, 96, 58 (Tabaims); Auss. Zw. I, 

 118, 115 (S) id.; 0. Sacken, Prodrome etc. II, 460. - - New York; 

 Pennsylvania; Illinois; Canada. 



Tftbanus ruficeps Macquart, Dipt. Exot. 5 e Suppl. 35, 130 male [!] 

 Tubanus fulvescens Walker, List, etc. I, 171; 0. Sacken, Prodrome 

 etc. 460. - - Massachusetts ; Canada. , 89 ). 



*insuetus 0. Sacken, Western Diptera etc., 219. - Webber Lake; 

 Sierra Nevada; Cal. 



(?) Craverii Bellardi, Saggio, etc. I, 60 (Tabanus). Mexico. ( 90 ). 



FAMILY LEPTIDAE. 



SECTION I. PSAMMORYCTERINA. ( 91 ). 

 Triptotricha. 



Loew, Centur. X, 15; id. Berl. Ent. Z. 1874, 381, note. 



*fasciyentris Loew, Berl. Ent Z., 1874, 380. Pennsylvania. 

 *rufithorax Say, J. Acad. Phil. Ill, 36, 5; Compl. Wr. II, 56 



Wiedemann, Auss. Zw. I, 223 (id.). Pennsylvania; New York; 

 Kentucky. 



* discolor Loew, Berl. Ent. Z. 1874, 379. - - San Francisco. 

 *lauta Loew, Centur. X, 15; compare also Berl. Ent. Z. 1874, 382. 

 California. 



