174 AGRICULTURAL EXPERIMENT STATION. 



the tarsi are banded at the bas^ of the joints with pale yellow in 

 the front and mid-legs and with white on the hind legs. The 

 beak is unhanded and the thorax is longitudinally marked with 

 brown and black stripes. The abdomen is unhanded, dark 

 brown, with scattered whitish scales. 



Description of the Adult. 



This is a very large, robust mosquito and measures 8-10 mm.,. 

 = .32-.40 of an inch in length, excluding the beak, which is 5 

 mm. long, or nearly half the length of the body. The head is 

 covered with mixed brown and white scales, the white ones 

 usually predominating and the brown ones collected into three 

 stripes, which extend from the base of the head to the posterior 

 margin of the eyes. The proboscis is testaceous, wholly black at 

 the apex, with scattered black scales at the base, thickest at the 

 basal half and at the extreme apex. The palpi in the female 

 (fig. 50, 2) are about one-third the length of the proboscis, four 

 jointed, the apical joint minute and variable in size and shape; 

 testaceous with numerous scattered black scales. The male palpi 

 are very large, longer, than the proboscis by the last two joints, 

 shaped as in Cidex, the two terminal joints and the apex of the 

 basal one being dilated; blackish brown in color, testaceous at 

 the base. The antennse are brown in the female, fuscous in the 

 male, the two basal joints of the former yellowish. 



The dorsum of the thorax has a median line of golden brown 

 scales extending its entire length, and on either side of the basal 

 fourth it is edged with a patch of white scales ; this median orna- 

 mentation is bordered by a lustrous, nude portion which becomes 

 wide posteriorly. The sides of the mesonotum are covered with 

 mixed white and yellowish brown scales. The pleura are brown- 

 ish, with scattered grayish scales. The legs are pale testaceous, 

 the femora of all with a few dark scales and dense tufts of black 

 scales near the apex. The tibise of the anterior legs have many 

 black scales, especially at the apex, while those of the mid and 

 posterior legs are thickly covered with long erect black scales, 

 except at the base. The first tarsal joint of the anterior and 

 middle leg is pale testaceous, with black scales at the apex ; the 

 second joint of the anterior and the second and third joints of 

 the middle pair Avith basal bands of yellowish, the remainder 

 black. The posterior tarsi are covered with erect black scales, 

 with the base of the joints white banded. The claws of the male 

 anterior and mid tarsal joints (fig. 50, 3) are long and unequal, 

 the larger with a median and basal tooth, the smaller with a 



