TABANIDAE. 55 



very probably identical with one of the species enumerated therein; 

 but the description is too vague for identification; moreover the 

 identity of the species with the true C. sepulchralis Fahricius 

 seems very doubtful. 



Silvias. 

 Meigen, System. Beschr. Ill, 27, 1820. ( 70 ). 



*g-igautulns Loew, Centur. X, 12 (Cln-ijKopK) ; 0. Sack en, Western 

 Diptera, 215. - - California; Washington Territory; Vancouver 

 Island; Colorado. 

 Silcius tri folium 0. Sacken, Prodrome etc. I, 395. ( 71 ). 



Observation. For Silwus isabellinus Wied. , see Pangonia. 



Lcpi<losclag:a. 



Lepiselaga Macquart, Dipt Exot. I, 1, 153, 1838; about its relation to 

 Hadrus Perty, compare Loew, Dipt. Sudafrica's I, 31. 



*lei)idota Wiedemann, Auss. Z\v. I, 193 (Tabamis); Perty, Delectus etc. 

 183, Tab. XXXVI, f. 9 (Harlru*); Maoquart, Dipt. Exot. I, 1, 154; 

 Tab. XVIII, f. 3; Bellardi, Saggio, etc. I, 75 (Hadrus); according 

 to Loew, Century VIII, 8, only the female, described by Bellanli, 

 belongs here. Guyana, Brazil iPerty, Macquart); Mexico ^Bellardi). 

 Haematopota crassipes Fabricius, Syst. Antl. 108, 4 [Loew, Centur. 



VIII, 8]. 

 * recta Loew, Centur. VIII, 8. - - New Granada, Mexico. 



Hadrus lepidotus Bellardi, Saggio, etc. 1, 75, male. [Lcew, Centur. 

 VIII, 8.] 



Haeiuatopota. 

 Meigen, in Illiger's Magaz. 1803. 



pnnctulata Macquart, Dipt Exot. I, 1, 163, 2. - - Carolina. 

 *americana 0. Sacken, Prodrome etc. I, 395. - North West of the 

 United States and the British Possessions. 



Dieliolaecra. 



Macquart, Dipt. Exot. I, 1, 112, 1838. 



abiens Walker, List, etc. I, 191. - - West Indies. 

 scapularis Macquart, Dipt. Exot. 2 1 ? Suppl. 15, 9; Bellardi, Saggio, etc. 

 I, 53; Tab. II, f. 12. - - Mexico. 



Observation. Dichrl/inr/i fxrita Walker, Dipt. Saund. 68 

 is erroneously stated to be from North America. The typical 

 specimen in the Brit. Mus. is south american. 



Diachloms. 



0. Sacken, Prodrome etc. If, 475, 1876; Diabasis, Macquart, Hist. Nat. 

 Dipt. I. 207, Dipt. Exot. I, 1, 150, was preoccupied by a genus of 



CoU'Optera. 



*ferrusratus Fabricius, Syst. Antl. Ill, 2 (CJvrysops) ; Wiedemann, Dipt. 

 Exot. I, 94, 56 (Tulanux); Auss. Zw. I, 186, 113 (id.); Oaten 



