350 KANSAS UNIVERSITY SCIENCE BULLETIN. 



1818 reptaiis Meigen, Syst. Beschr., 1:291-92. 



1818 sericea Meigen, Syst. Bei'chr., 1:296-98. 



1818 elegans Meigen, S>st. Beschr., 1:296-99. 



1818 variegata Meigen, Syst. Beschr., 1:292-93. 



1823 reptwis Fries, Obs. Entomol. Pars. 1 Monogr. Simuliar, 



p. 13. 

 1830 cincta Meigen, Syst. Beschr., 6:311, 14. 

 1838 posticata Meigen, Syst. Beschr., 7:52, 21. 

 rufipes Meigen. See hirtipes. 

 sericea Linnaeus. See reptans. 

 *tamaitlipciise Townsend, N. Y. Ent. Soc. Jour. 1898, v. 7. Tex. 

 tarsale Williston. See piilchniiii Phillipi. 



t7-ibnlat)nn, Lugger, Minn. Agric. Exp. Sta. Rep't 1896, p. 20.5-7. Prob- 

 ably equals vittatiim (p. 385, Seq.) (Figured but not described.) 

 *venustu'm. Say, Acad. Nat. Sci. Phil. Jour., 3:28: Compl. Wr. 2:51 

 Wiedemann, Auss. zw. Ins., 1:71. Ohio, D. C. (Osten Sacken, cata- 

 logue), N. J. (Johnson), Can., N. H., N. Y., Mich., Minn., Wyo., 

 B. C, Cal., Tex., La., Miss., Fla. (Coquillett) , Id. The following 

 synonymy is according to Coquillett, 1898 : 



1862 vwlestum Harris, Ins. Inj. to Vegetation. (Not described.) 

 1870 piscicidium Riley, Am. Ent. 2:367. Mumford, N. Y. 

 *virgatiim Coquillett, U. S. Nat. Mus. Proc. 1902, 25:97. N. M. 

 *vittafum Zetterstedt, Ins. Lapponica. 1840. p. 803. 

 stagger Grcenl. Antl. Greenland (O.'ten Sacken's catalogue), N. J. 

 (Johnson), Alas. (Coquillett 1900), Cal., Kan., Minn., N. Y., Neb. 

 (Coquillett 1898), Id., S. Dak. The following synonymy according 

 to Coquillett: 



1848 decorum Walker, List. Ins. p. 112. Hudson Bay Ter. 

 1893 argus Willi.ston, N. Am. Fauna, No. 7, p. 2.53. Cal. 



KEY TO SPECIES OF SIMULIUM. 



liARWJE. 



1. Mature larva of 6 or 7 mm. long, with the dorsal surface of the 



head nearly white; the rays of the fan number about 30. Larva 

 from Santa Cruz mountains, Cal. (p. 387). 

 Head usually brown; rays of the fan usually 40 or more 2 



2. The top of the head with six black blotches or spots. Larvae from 



New Mexico (p. 386). 

 Head without six dark spots 3 



3. The Caudal blood gills are three simple papillae 4 



The three main branches are again subdivided 6 



4. The middle tooth of the labium is simple and pointed, labium with 



six pairs of setse on its ventral surface (pi. 35, fig. 8). 



Peniarum (-inveiiiifsfi(iii) 

 G. Full-grown larva 10-12 mm. in length, black in color, its labium 



with an elongate middle tooth (pi. 36, fig. 3) pictipcn 



Paler larvse less than 10 mm. in length 7 



