256 CATALOGUE OF NORTH AMERICAN DIPTERA. 



helvolus LOEW, Berl. Ent. Zeitsch., 1874, 355. Texas. Nebr. J. M. A. 

 lugubris WILLISTON, Biologia, Dipt., i, 304. Guerrero, Mex. 

 ochraceus VAN DER WULP, Tijdschr. v. Ent., xm, 212, pi. ix, f. 9 (Stenopogon) ; 

 xxv, 96, notes ; refers to this genus.- N. A. 



OSTEN SACKEN, Cat., note 101, gen. ref. 

 picticornis LOEW, Cent., vu, 45. Cal. 

 truquii BELLARDI, Saggio, n, 76, pi. i, f. 10 (StenopogonH}. Mex. 



WILLISTON, Biologia, Dipt., i, 303. Guerrero, Mex. 



STENOPOGON. 



LOEW, Linna?a Ent., n, 453, 1847. 



SCHINER, Fauna Austr., i, 127, 1862. 



asacidinus WILLISTON, Trans. Amer. Ent. Soc., xm, 289. Kans. 

 albibasis BIGOT, Annales, 1878, 422. Cal. 

 breviusculus LOEW, Cent., x, 28. Cal. 

 californise WALKER, List, n, 322 (Dasypogon). Cal. 

 consanguineus LOEW, Cent., vii, 48. Nebr. 

 fuscolimbatus BIGOT, Annales ; 1878, 421. Mex. 

 gratus LOEW, Cent., x, 31; loc. cit., 29, female (itnii'ittatus) . Both Cal. 



[LOEW, Berl. Ent. Zeitsch., 1874, 358.] 

 inquinatus LOEW, Cent., vu, 47. Nebr. 

 latipennis LOEW, Cent., vii, 49.- Pecos R., Texas. 

 longulus LOEW, Cent., vn, 50. Pecos R., Texas. 

 modestus LOEW, Cent., vn, 46. Red R. of the North. 

 morosus LOEW, Berl. Ent. Zeitsch., 1874, 356. Red R. of the North, 

 obscuriventris LOEW, Cent., x, 30. Cal. 



subulatus WIEDEMANN, Auss. Zw., i, 3/5 (Dasypogon^.Ga. 

 univittatus LOEW, see gratus. 



SPHAGEUS. 



LOEW, Cent., vn, 55, 1866. 



SCHINER, Verh. Zool.-Bot. Ges., 1866, 847, quotes orig. desc. 

 chalcoproctus LOEW, Cent., vn, 55. Cuba. 



MICROSTYLUM. 



MACQUART, Dipt. Exot., i, 2, 26, 1838. 

 LOEW, Dipterenfauna Siidafrika's, 74, 1860. 

 fulvigaster BIGOT, Annales, 1878, 410. Mex. 

 galactodes LOEW, Cent., vii, 44. N. M. ; Osten Sacken, Cat., corrects to Pecos 



R., Texas, and adds Kans. 

 morosum LOEW, Cent., x, 27. Dallas, Texas, 

 pollens OSTEN SACKEN, Cat., 230, note 100. Dallas, Texas. 



Note. Osten Sacken's reference was not intended as a description, but 

 I think the data and the availability of the types make it valid. 



ARCHILESTRIS. 



LOEW, Berl. Ent. Zeitsch., 1874, 377, change of name. 

 SCHINER, Verh. Zool.-Bot. Ges., 1866, 672 (Archilestcs, preoc.). 

 OSTEN SACKEN, Biologia, Dipt., i, 169, note, 1887. 

 magnificus WALKER, List, vi, 427 (Dasypogon'). Mex. 



BELLARDI, Saggio, 11, 79, pi. i, f. n (Microstylum} . Mexico, near the 



city, at Yautepec and Huastec. 

 SCHINER, Novara, 168 (id.). S. A. 



