Genus Ankylorhynchus. 
95 
Genus ANKYLORHYNCHUS. Lutz ( in Bourroul). 
Mosq. do Brazil, 3 (1904), Lutz (in Bourroul); Mono. Culicid. IV., 127 
(1907) Theobald. 
Three species occur in this genus and tabulate as follows:— 
a. Tarsi of $ all the same colour. 
No caudal tuft..... neglectus. Lutz. 
Bronzy black caudal tuft . .. trichopygus. Wiede¬ 
mann. 
aa. Second and fourth middle tarsals, white below yiolaceus. Wiedemann. 
Ankylorhynchus neglectus. Lutz (1904). 
Mosquitos do Brazil, 14 and 65 (1904), Lutz ; Mono. Culicid. IV., 127 (1907), 
Theobald; Os Culicideos do Brazil, 144 (1908), Peryassu. 
Sao Paulo and Bio de Janeiro, Brazil. 
Ankylorhynchus trichopygus. Wiedemann (1828). 
Auss. Zweif. Ins. L, 4.(1828), Wiedemann; Mono. Culicid. I., 243 (1901) ; 
III., 114 (1907), Theobald; Os Culicideos do Brazil, 147 (1908), 
Peryassu. 
Santa Catharina, Sao Paulo, Rio de Janeiro, Brazil. 
Ankylorhynchus yiolaceus. Wiedemann (1821). 
Gulex violacea. Wiedemann (1821). 
Megarhinus purpureus. Theobald (1901). 
Megcirhinus violaceus. Hoff.-Theo (1903). 
Dipt. Exot. 7, Wiedemann, 7 (1821) ; Mono. Culicid. I., p. 230 (1901); III., 
117 (1907), Theobald; Os Culicideos do Brazil, 149 (1908), Peryassu. 
Sao Paulo, Rio de Janeiro, Bahia, Minas Geraes, Brazil. 
Genus TOXORHYNCHITES. Theobald (1901). 
Mono. Culicid. I., 244 (1901); III., 119 (1903) ; IV., 140 (1907), Theobald. 
The type of this genus is T. brevipalpis , Theobald, the 
essential difference from Megcirhinus being the short 9 palpi. 
They all appear to be of three segments, but from one to three 
