Anophelinae. 13 



hair ; about one-third of the length from the base is a branched 

 hair. Thorax rounded, twelve long plumose hairs and some 

 smaller ones and several single hairs. Abdomen of nine segments, 

 the first two rings have two long feathered hairs on each side, 

 the third has one, the fourth and fifth with three or four simple 

 hairs united at their base on each side, the sixth, seventh and 

 eighth with but one or two ; besides these there are two or three 

 short feathered hairs and several short simple ones on each side 

 of the segments. Palmate hairs on segments three to seven; 

 comb with about seven long teeth, and between each, one to four, 

 shorter ones. Pupa with no special features. 



Economic importance. This Anopheles bites somewhat severely. 

 So far it has not been connected with malaria, but probably it 

 has the same importance as A. maculipennis. 



2. ARBIBALZAGIA MACULIPES. Theobald. 

 (The Spotted-legged Mosquito.) 

 (Mono. Culicid. III., p. 81, 1903.) 



General appearance. Head with deep brown and grey 

 upright forked scales, the dark ones grey at the tips. Palpi 

 densely black-scaled with three narrow white-scaled bands, a 

 white apex and a few scattered white scales. Thorax brown 

 with slaty-grey sheen showing brown longitudinal lines, small 

 brown specks and narrow - curved golden hair-like scales. 

 Abdomen black, with deep brown and golden-brown hairs, 

 dorsum nude, each segment with an apical lateral tuft of black 

 scales and a few white ones on the apical tufts; venter with 

 many white and black flat scales and also a few on the apical 

 segment. Legs deep brown banded and spotted with white to 

 yellow, sometimes almost golden scales. Wings mostly black 

 scaled with a few yellow patches, upper border dark with several 

 small yellow spots. 



Length. 6*5 mm. 



Geographical distribution. Abundant about Rio de Janeiro 

 and at Sao Paulo, Brazil. I have also received specimens from 

 Trinidad. In Jamaica it has occurred at Port Antonio, where 

 Dr. Grabham has taken a few specimens at the border of the 

 swamp near the Folly Point. Specimens have also been found 

 at Morant Bay by Dr. Bartlett. 



