AQUATIC INSECTS IX NEW YORK STATE 351 



thorax, leaving the skin, together with the respiratory filaments, 

 otherwise intact. 



The generic characters of the imagos have already been 

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

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

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

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

 split's, in a few species only are those of the fore legs rudiment- 

 ary. 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 Simnlinm 



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

 l*argus Williston, N. Am. Fauna, no. 7. May 1893. p.253. Cal. (Syn. of 



S. vittatum Zett. according to C'oquillett, Harriman Exp. 1900. 



p.3931. 

 arg^ropeza. See r e p t a n s . 

 *bracteattira Coquillett, U. S. Dep't Agric Div. Ent. 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.407. 

 cincta. See r e p t a n s . 



*cinereuin Bellardi, Saggio di ditterologia Messicana. 1:13. Cal. (Town- 

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

 columbatdiensis Fabricius nee Schonliauer. See r e p t a n s . 

 decorum Walker, List of Dipterous Insects, etc. ptl. 1848. p. 112. 



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



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

 elegans. See r e p t a n s . 

 erythrocephala. See r e p t a n s . 

 ♦fulvtun Coquillett, U. S. Nat. Museum Proc 1902. 25:96: 



IS'JS ocbraceum Coq. not Walk. Mont.; Id.; Col.; N. M.; Alaska. 

 ♦glaucum Coquillett, U. S. Nat. Museum Proc. ^902. 25:97. Missouri. 

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



p.69. Col. 

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



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



The following synonymy is according to Schiner: 

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

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

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



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

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



