BY FREDERICK A A. SKUSE. 621 



479. SCEPTONIA ORNATITHORAX, sp.n. 



9.— Length of antenna 0035 inch ... 0-88 millimetre. 



Expanse of wings 0090x0-035 ... 2-27 x 0-88 



Size of body 0-100 x 0-021 ... 2-55x0-52 



Antennae slender, nearly as long as the head and thorax taken 

 together ; joints of the scapus and base of first flagellar joint 

 yellow; flagellar joints dusky brown, with a dense, somewhat 

 hoary, pubescence. Head dark brown, yellow at the sides and 

 anteriorly. Hypostoma and palpi yellow. Thorax yellow anteri- 

 orly with a median cuneate, translucent, shining brown, very 

 slightly raised elevation, not extending half-way to the scutellum ; 

 hinder portion of thorax black with a large yellow spot laterally, 

 immediately in front of the base of the wings ; almost opaque ; 

 densely covered with very short, golden-yellow hairs ; pleurae 

 yellow, with a black spot immediately before the origin of the 

 wings, and tinged with brown above the coxse ; scutellum and 

 metathorax black, the former with black setse. Halteres yellow. 

 Abdomen brown, the first segment entirely yellow and the follow- 

 ing segments slightly bordered posteriorly with ochreous-yellow • 

 densely clothed with brown hairs ; venter yellow. Coxse and 

 femora pallid ; in the hind-legs the coxae deep brown or black at 

 the base, and the femora margined behind with deep brown or 

 black ; anterior coxse and all the femora densely covered with dark 

 minute pubescence ; tibiae cinereous ; tarsi black. Tibial spurs 

 black. In the fore- and intermediate-legs the femora rather 

 shorter and narrower than the coxse ; in the hind-legs rather 

 broader and longer. Hind tibiae twice the length of the fore pair; 

 the latter about equal in length to the metatarsi of the fore-legs. 

 Intermediate tibiae with one, hind tibiae with two rows of spines 

 on the outer side. Metatarsi of the hind-legs spinulose. Wings 

 pellucid, with a slightly yellowish tint ; brilliantly iridescent ; 

 veins dark brown. Costal vein extending beyond the tip of the 

 third longitudinal vein less than half the distance from that to 

 the tip of the anterior branch of the fork ; auxiliary vein very 



