210 A Monograph of Cuticidae. 



The larva of the type differs from Stegomyia, in having 

 spreading tufts of rather long hairs, scattered over the body. 

 Coquillett tabulates the species as follows : — 



1. Upper side of thorax brown-scaled and with 



six narrow lines of pale yellow scales ex- 

 tending the entire length of the thorax ; 



last two segments of the hind feet black . . . sexlineata. Theobald. 

 Upper side of thorax not marked like this ... 2 



2. Last two segments of the hind feet and all 



the tibiae black 3 



Last two segments of the hind feet chiefly 



white ; a spot or band of white scales on the 



base of at least the first two segments on 



all of the feet ; tibiae with a silvery mark 



at a point about one-fourth of their length mediovittala. Coquillett. 

 8. With a dot of silvery scales in the middle of 



the front end of the thorax ; first two 



segments of the front feet white-scaled at 



their bases albonotata. Coquillett. 



Without such a dot, front feet all black busckii. Coquillett. 



Gymnometopa mediovittata. Coquillett (1906). 



Stegomyia mediovittata. Coquillett (1906). 



Canad. Entomo., p. 60, Feb. (1906) ; U.S. Dept. Agri. Bu. Ent. Tech. Series 

 No. II., p. 25 (1906) (Gymnometojpa), Coquillett. 



" Proboscis black, unmarked ; palpi black scaled, in the male the bases of 

 the segments white scaled, in the female only the apices of the segments are 

 white ; inner side of first antennal segment white scaled, scales of occiput 

 black, a median line of white scales, those on the sides yellow and white. 

 Thorax brown scaled, a median line of white ones, which is divided into 

 two branches on the posterior fifth of the mesonotum; on either side of 

 this line is a stripe of dark brown scales, followed by a line of light yellow 

 scales, which become whitish on the posterior portion of the mesonotum ; 

 a broadly interrupted line of white scales midway between this line and 

 the insertion of the wing and a similar line just above this insertion, a 

 spot of white scales on the humerus and several similar spots on the 

 pleura ; scutellum with a spot of white scales on each of its three lobes. 



Abdomen black scaled with a bluish reflection, a spot of white ones 

 near base of the sides of the last four segments and a few white scales at 

 apex of last segment. Legs black scaled, a line of white ones on anterior 

 and posterior sides of each femur, a spot above middle of anterior side of 

 each tibia, the base of the first two segments of the front and middle tarsals 

 and the base of each segment of the hind ones white scaled; tarsal claws 

 of the female simple, those of the front and mid tarsi of the male with one 

 tooth under one of the claws, none under the other, claws of the hind 

 tarsi simple. Wings hyaline, the scales black. 



