182 



candidus Macquart, Dipt. Exot. Suppl. 1, p. 67, 48 {Dosypogon) ; Bellardi, Sag- 

 gio, etc., II, p. 78. Mexico. 

 gelascens Walker, Trans. Ent. Soc. N. Ser. V, p. 277 [Bellardi]. 



N. B. — Bellardi, 1. c. p. 79, besides this synonymy, mentions the opinion of 

 Bigot, that S. fasciventris Macq. is only a variety of S. candidus, while Mr. 

 Loew considers it a synonym of S. trifasciatus. 



HOLCOCEPHALA. 



Jaennicke, Neue Exot. Dipt. p. 51, 1867, proposes this name instead of Disco- 

 cepliala Macquart, Dipt. Exot. I, 2, p. 50, 1838, which is preoccupied. Loew 

 adopts this change in Berl. Ent. Z. 1874, p. 377. 



*abdominalis Say, J. Ac. Phil. Ill, p. 50, 2 {Dasypogon). Wiedemann, Auss. 

 Zw. I, p. 412, 75 {id.). Walker, List, etc., VI, p. 426. United States (not 

 rare in damp situations). 

 rtifiventris Macquart, Dipt. Exot. I, 2, 50, 1, Tab. IV, fig. 2. Carolina, 



Brazil. 

 aeta Walker, List, etc., II, p. 362 (Dasypogon). 



laticeps v. d. Wulp, Tijdschr. v. Entom. 2 Ser. II, p. 137, Tab. Ill, p. 10-16 

 (Dasypogon). [Loew, Z. f. Ges. Naturw. Vol. XXXVI, p. 115]. 

 *calva Loew, Centur. X, 35. Texas. 



afiinis Bellardi, Saggio, etc., II, p. 86, Tab. I, p. 13. Mexico. 

 deltoidea Bellardi, Saggio, etc., II, p. 85, Tab. I, fig. 12. Mexico. 

 divisa Walker, Trans. Ent. Soc. N. Ser. V, p. 279. Mexico. 

 interlineata Walker, 1. c. p. 279. Mexico. 



loiigipennis Bellardi, Saggio, etc., II, p. 86, Tab. I, fig. 14. Mexico. 

 minuta Bellardi, I. c. p. 83. Mexico. 



nitida Wiedemann, Auss. Zw. II, p. 603. Walker, List, etc., VI, p. 503 (Dasy- 

 pogon) ; Bellardi, 1. c. p. 84. Mexico. 



Division B. — Front tibiae with a spur on the tip. 



NICOCLES. 



Jaennicke, Neue Exot. Dipt. p. 47, 1867; Pygostolus Loew, Centur. VII, 28; 

 this name as preoccupied, is given up by Loew, Centur. X, 24, Nota. 



*argentifer Loew, Centur. VII, 28. District Columbia. 

 *pictus Loew, Centur. VII, 30. District Columbia. 



Amastris Walker, List, etc., II, p. 362 (Discocephala). Georgia. [Walker 

 describes a female.] 



