REPORT ON MOSQUITOES. 261 



the wings unspotted, the thorax golden yellow with a blackish 

 central stripe and the segments of the abdomen have narrow, ir- 

 regular, white bands at their bases. 



Description of the Adult. 



This is a small mosquito of slight build, the body measuring 

 exclusive of the beak 3.5-4.5 mm.,=.i4-.i8 of an inch, in 

 length. The head back of the large black eyes is covered with 

 whitish scales, and there is a patch of black ones on each side 

 which sometimes mix with those of the top. The proboscis is 

 black, long and slender, 2.5-3 mm.,=. 10-.12 of an inch, in 

 length. The palpi in the female are black, the fourth joint 

 small, oblong, with an obtuse apex and one or two long bristles ; 

 one specimen examined showed a minute fifth joint. In the male 

 the palpi (fig. 41, 9) are black, two-thirds the length of the pro- 

 boscis, the terminal two joints less than half the length of the 

 basal joint ; a few short hairs toward the apex represent the fan- 

 like tufts. The female antennae are brownish black, short, but 

 with the usual number of joints; the male antennae are dark 

 brown, the joints ringed with white and the plumes grayish 

 brown. 



The dorsum of the thorax is covered with golden yellow 

 scales and has a blackish central stripe which becomes diffused in 

 the posterior portion. The pleura are dark brown, with small 

 patches of dirty white scales. The legs are black, the femora 

 yellowish underneath, except near the apex, the extreme apex 

 white. The tibije and the first and second tarsal joints of the 

 hind legs are white at both base and apex, the third and fourth 

 tarsal joints white at the base only, while the last joint is wholly 

 white. In the front and mid tarsi the bands are much reduced, 

 the first being the only one white at both ends, the others white 

 at the base, becoming more or less obsolete in the last two joints. 

 The claws of the male anterior and mid tarsal joints (fig. 79, 

 3, 4) are unec|ual in size, the larger with a median and basal 

 tooth, the smaller with a single median tooth near the base. The 

 posterior claws (fig. 79, 5) are equal' and simple. In the female 

 the claws are equal on all feet, those of the anterior and mid 

 tarsal joints (fig. 79, 2) one toothed, the posterior simple as in 

 the male. 



The abdomen is purplish black with whitish bands at the base 

 of the segments, becoming broad at the sides until, beneath, it is 

 wholly white. In the female the bands are very narrow and ir- 

 regular, and are sometimes wholly wanting; in the male, how- 

 ever, they are broader, well defined and always present. 



