Appendix . 
605 
Janthinosoma texanum. Dyar and Knab (1906). 
Proc. Biol. Soc. Wash. XIX., 135 (1906). 
“Hind legs without raised scales; tarsal joints with pale basal 
bands; first hind tarsal joint with a narrow white ring; thorax 
golden-brown; white ring of the first hind tarsal joint one-third or 
more as broad as the joint. Else as in J. jamaicensis, Theobald. 
Seven specimens, Brownsville, Texas, May 21, 1904 (H. S. Barber). 
Type in U.S. Nat. Mus.” 
Genus Psorophora. Robineau-Desvoidy. 
Psorophora virescens. Dyar and Knab (1906). 
Proc. Biol. Soc. Wash. XIX., 133 (1906). 
“ Close to P. howardii , Coquillett, but the abdomen above metallic 
green shining instead of blue. The species is also somewhat smaller. 
Thirty-five specimens ; Almoloya, Acapuleo, Tehuantepec, Salina 
Cruz, Mexico; Puntarenas, Costa Rica (F. Knab); Manzanillo, 
Mexico (A. Duges) ; Monterey, Mexico (J. Goldberger). 
Type in the U.S. Nat. Mus.” 
Psorophora saeva. Dyar and Knab (1906). 
Proc. Biol. Soc. Wash. XIX., 133 (Sept. 1906). 
“ Black with blue reflection, the legs with dense, short, outstanding 
scales; tips of posterior femora white. Whitish scales on sides of 
head and a line at least on thorax, but this is denuded. Wings 
smoky-blackish. 
Three specimens; Trinidad, B.W.I. (F. W. Uriah) ; Trinidad, 
June (A. Busck). 
Type in the U.S. Nat. Mus.” 
Psorophora iracunda. Dyar and Knab (1906). 
Proc. Biol. Soc. Wash. XIX., 133 (Sept. 1906). 
“ Black with metallic-blue lustre, the legs with abundant out¬ 
standing scales, long and squamose. Posterior femora slightly greyish 
at tip. Wings smoky clouded. 
Five specimens ; Puntarenas, Costa Rica (F. Knab). 
Type in U.S. Nat. Mus.” 
Genus Stegoconops. Lutz (1906 ?). 
Os Culicideos do Brazil, 34 (1908), Peryassu. 
“ Eyes and scutellum normal. Legs normal without irregular 
scales. Head ordinarily clothed with flat scales, and also with small 
