158 A Monograph of Culicidae. 



Janthtnosoma lutzii. Theobald (1901). 



Citlex albitarsis. Neveu-Lemaire (non Theobald) 

 (1902). 



Mono. Culicid. I., p. 257 (1901) and III., p. 128 (1903) ; Archives de Parasi- 

 tologie, VI., p. 10 (1902) (albitarsis), Neveu-Lemaire ; Handbk. Gnats, 

 2nd ed., p. 339 (1902), Giles ; Les Moustiques, p. 236 (1905), Blanchard. 



Additional localities. — Prainbra, Brazil (Dr. Goeldi), in May. 



Synonomy. — It is evident that the species taken by Neveu- 

 Lemaire to be the African Culex albitarsis, Theob., is only this 

 species. 



Janthinosoma discrucians. Walker (non Theobald) (1856). 



Janihinosoma arribalzagae. Giles (1902). 



Insecta Sanndesiana, p. 430 (1856), Walker; Dipt. Argent., p. 53 (1891)> 

 Arribalzaga ; Handbk Gnats, p. 341, 2nd ed. (1902) ; Class. Mosq. N. 

 and M. America, Tech. Se. 11, p. 17 (1906), Coquillett. 



Additional localities. — Fort Logan, H. Roots, Arkansas 

 (Miss Ludlow) j Sao Paulo (Dr. Lutz), Rio de Janeiro. 



Notes. — Walker's description does not agree with the types 

 in the Museum. The male has the last two tarsals white ; the 

 female has no hind legs. It is possible the male is not the 

 original specimen. Taking the description as valid, the specimens 

 taken as discrucians by myself and re-described in Yol. III., p. 126, 

 are not Walker's species, as he expressly states that the last hind 

 tarsal is white only at the base. 



Giles' J. arribalzagae answers this description, and must 

 therefore sink as a synonym. The species I re-described as 

 Walker's is now given a new name, albipes (vide table). 



Genus PS0R0PH0RA. Robineau-Desvoidy. 



Essai, s. 1. tribu d. Culic. Mem. d. 1. Soc. d'Hist. Nat. d. Paris, III., p. 412 

 (1827), Robineau-Desvoidy ; Dipt. Argent. Rev. d. Mus. de La Plata, II. r 

 p. 138 (1891), Arribalzaga; Handbk. Gnats, p. 178 (1900), 2nd ed., 

 p. 343 (1902), Giles; Mono. Culicid. I., p. 259 (1901); III., p. 130 

 (1903), Theobald; Les Moustiques, p. 237 (1905), Blanchard; Gen. 

 Ins. Fam. Culicid., p. 16 (1905), Theobald ; Class Mosq. N. and Mid 

 America, Tec. Se. 11, U.S. Dep. Agri. Div. Ent., p. 14 (1906), Coquillett. 



No new species have been added to this genus since 1903. 

 It is still limited to the Americas. Since the appearance of the 



