AQUATIC INSECTS IX NEW YORK STATE 351 



thorax, lea^^Ilg the skin, together with the respiratory filaments, 

 otherwise intact. 



The generic ciiaracters of the imagos have already been 

 given in sufficient detail in the characters of the family; to 

 which need only be added that the tarsal claws of the male in 

 all the species I have examined are trifld; those of the female 

 being either simple or bifid. All the tibiae are provided with 

 si)urs, in a few' species only are those of the fore legs rudiment- 

 nry. The middle and hind metatarsi possess a more or less 

 regular row of spines on the extensor margin, which are want- 

 ing on the fore metatarsi. On the second joint of the hind 

 metatarsus at its articulation with the first, there is usually a 

 leaflike appendage covering the base of the flexor surface [pl.38, 

 fig. 1,8,9]. 



List of the North American species of Simuliidae, genus Simulium 



Latreille, Hist. Nat. Crust, et Ins. 1804. 14:294. 

 i^ar^s Williston, N. Am. Fauna, no. 7. May 1893. p.253. Cal. (Syn. of 



S. vlttatum Zett. according to Ctoquillett, Harriman Exp. 1900. 



p.393). 

 argyropeza. See r e p t a n s . 

 *bract6atum Coquillett, TJ. S. Dep't Agric. Div. Bnt Bui. 10, n. s. 1898. 



p.69. Mass., Cal., N. Y., Kan., Mich. 

 calceatum. Harris. A catalogue name according to Riley. Am. Ent. 1870. 



p.4a7. 

 eincta. See r e p t a n s . 



*cinereum Bellardi, Saggio di ditterologia Messieana. 1:13. Cal. (Town- 

 send, Baja. etc. 1893). Mex. (Bellardi). 

 eolumbatelieiisis Fabricius nee Schonhauer. See r e p t a n s . 

 decorum Walker, List of Dipterous Insects, etc. ptl. 1848. p.ll2. 



Hudson Bay Ter. (Syn. ofS. vittatum Zetterstedt, according to 



Coquillett, n. s. Bui. 10, 1898. p.08). 

 elegans. See r e p t a n s . 

 erythrocephala. See rep tans. 

 *fulvivn Coquillett, U. S. Nat. Museum Proc. 1902. 25:96: 



1898 ocliraceum Coq. not Walk. Mont.; Id.; Col.; N. M.; Alaska. 

 *glaucum Coquillett, TJ. S. Nat. Museum Proc. 1902. 25:97. Missouri. 

 *griseuiii Coquillett, U. S. Dep't Agric. Div. Ent. Bui. 10, n. s. 1898. 



p.69. Col. 

 *hirtipes Fries, Obs. Entomol. Pars, Monogr. Simuliar. 1824. p. 17, 5. 



Tfl. 1, f.l. N. Y., Id., Cal. 



The following synonymy is according to Schlner: 

 1830 r u f 1 p e s Meigen, Syst. Beschr. 6:311-17. 

 1830hirtipes Fries, Meigen, Syst. Bescher. 6:312-18. 

 1850hirtipes Fries, Zetterstedt, Dipt. Scand. 9:3426-28. 



iThose names to which a * is prefixed I consider either a distinct species, 

 or not suflBciently described to warrant placing as the synonym of another. 



