185 



SAROPOGON. 



Loew, Linn. Eutom. II, p. 439, 1847. 



*adnstus Loeio, Berl. Ent. Z. 1874, p. 375. Texas. 

 *conibu8tus Loew, 1. c. p. 374. Texas. 



LASTAURUS. 



Loetc, Bern. iib. d. Fam. d. Asiliden, Berlin, 1851, p. 11. 

 autliracinus Loetc, Bern. lib. d. Fam. d. Asiliden, p. 13. Mexico. 



[Scliiner (Verh. Z. B. Gas. 1867, p. 373), identifies tliia species with Dasypogon 

 lugubris Macq. Dipt. Exot. Suppl. 1, p. 64, from Surinam ; whether correctly or 

 not, the insufficiency of my materials does not enable me to decide. — Lw.]. 



Observation. — Dasyp. sexfasciatas Say, of the old Catalogue, belongs to 

 the genus Laphystia (Laphrina). 



The following species I do not know and cannot refer them to the new 

 genera formed at the expense of Dasypogon in Meigen's and Wiedemann's 

 sense. 



Dasypogon albiceps Macquart, Dipt. Exot. ler Suppl. p. 69, 51. Walker, 

 List, etc., VI, p. 426. Texas. 



May this not be a Laphrina like D. sexfasciatus, to which Macquart com- 

 pares it ? 



tristis Walker, Dipt. Saund. p. 93. United States. 



The description reminds one of Dizonias. 



californiae Walker, List, etc., II, p. 322. California. 



angustus Macquart, Dipt. Exot. 3e Suppl. p. 20, 59, Tab. I, fig. 11. Walker, 



List, etc., VI, p. 429. San Domingo. 

 ceppllicus Say, Journ. Ac. Phil. VI, p. 158. Mexico. 

 mexicamis Macquart, Dipt. Exot. ler Suppl. p. 68, 49. Walker, List, etc., VI, 



p. 428. Mexico. 

 nigritarsis Macquart, Dipt. Exot. ler Suppl. p. 68, 50. Walker, List, etc., VI, 



p. 428. Mexico. 

 parvus Bigot, R. d. la Sagra, etc., p. 789, Tab. 20, fig. 3. Cuba. 



BUL. BUr. SOC. NAT. SCI. (24) OCTOBEK, 1874. 



