CULICID^ : THE ANOPHELES MOSQUITOES 93 



Anopheles {Chagasid) niger, Theobald { = Myzorhynchella 

 nigra, Theobald). Antennae with distinct whorls of scales on 

 the 2nd to the 4th or Sth segments. Palpi with four very 

 narrow pale bands. In the hind legs the tip of the ist tarsal 

 segment, the distal half of the 2nd, and all the last 3 

 segments are snow-white. Wings dusky, hardly spotted in 

 the field though yellow scales are present among the prevail- 

 ing dark scales; front edge with four yellow spots, the two 

 smaller of which do not break the costa. No scales on the 

 abdomen. Brazil and Mexico. 



Anopheles {Chagasid) lutzianus { = Myzorhynchella lutzii, 

 Cruz, Theobald). Palpi black, except at the tips of the 

 segments. Whorls of scales on 4 or 5 segments of the 

 antennal flagellum. In the hind legs the tip of the 1st tarsal 

 segment, the posterior two-fifths of the 2nd, and all the 

 last 3 segments are white. Costa with four yellow spots. 

 Scales on the genital lobes. Brazil. 



Anopheles {Chagasia) parvus, Chagas { = Myzorhynchella 

 parva, Chagas). Palpi with three narrow white bands and 

 whi,te tip. Whorls of scales on 4 or 5 segments of the 

 antennal flagellum. In the hind legs the distal half of the 

 2nd tarsal segment and all the last 3 segments are white. 

 Costa with three small yellow spots. Scales on the genital 

 lobes. Brazil. 



Anopheles {Chagasid) nigritarsis, Chagas. Palpi black, 

 with the joints between the segments bronzy white. In the 

 hind legs the distal third of the 2nd tarsal segment is whitish, 

 the 3rd and 4th segments are both whitish with a black ring, 

 and the 5th segment is white. Costa with five yellow spots. 

 Scales on the genital lobes. Brazil. 



