94 



Prothoracic lobes elliptical, remote dorsally. Mesonotum black, covered with 

 bright bronzy or snow-white scales; two median black stripes as long as the thorax, 

 separated from one another by a white line; laterally two other black stripes, half 

 as long and also separated from them by a white line; scutellum trilobate, black, 

 bordered by lines, the median line being forked; long golden hairs on the borders 

 of the midlobe and on the lateral lobes; post-notum deep black; pleurae black with 

 eight or nine distinct large patches of snow-white scales. 



Abdomen violet black, covered with dusty black scales and long golden hairs 

 from the posterior border of each segment. Each segment with lateral snow-white 

 spots, most prominent when the mosquito is observed laterally; on the dorsal side 

 they never form bands; venter with brqad white bands. 



Wings with the veins covered by long lateral black-brown scales, truncated at 

 the apex; those along the costa and base of the first long vein black; first sub- 

 marginal cell a little longer and narrower than the second posterior cell, its stem 

 about equal to half the length of the cell; stem of the second posterior cell nearly 

 equal to the length of the cell; basal cross-vein not twice its own length distant 

 from the anterior cross-vein; fringe dark brown; basal lobe of wing with a fringe of 

 flat, black scales and no bristles near the base of the first long vein. 



Legs black, coxae covered with snow-white scales; bases of the femora and 

 the ventral surface for about half their length white; knees snow-white. Tibiae and 

 metatarsi black; hind metatarsus about two-thirds the length of the hind tibia. Un- 

 gues of the female, on the forelegs uriinserrated, on the other simple; on the male 

 unequal on fore- and middlelegs, on the forelegs the small ungues uninserrated, 

 the large biserrated ; so also on the middle legs, but the inner tooth indistinct ; the 

 outer on both claws remarkably rod-like and broader at apex; those of the hind- 

 legs simple. 



Length of body 5 mm. 



Male: Proboscis longer in male than in female; palpi black almost of the 

 same length as the proboscis. Antennae black; but with white bands upon every 

 segment; the white parts of the thorax more distinct; the white spots of the ab- 

 domen larger; the last segment almost snow-white. The ventral surface of the legs 

 white to a greater extent than in the female. With regard to ungues see under ? . 



Length of body 5.5 mm. 



Larva. Head rounded; almost isodiametric; hind angles rounded; sides arcuate 

 and front margin highly arcuate. Antennae small, cylindrical, only slightly tapering 

 at front, smooth without any spinosity. Antennal tuft consisting only of one single 

 hair, inserted almost in the middle of the antenna. Two hairs and two attenuated 

 digits at apex. Eyes small, the stripe of integument between the eyes often indistinct 

 or obsolete. Anteantennal tuft often only with two or three hairs ; upper frontal tuft 

 with two hairs, lower with one single hair; between the upper frontal tuft a small 

 tuft of about six hairs and a similar one over the eyes. 



Thorax rounded, slightly angled at hair-tufts; hair formula at frontal border 



