416 



JAMES WATERSTON. 



Metathorax medianly rounded and sculptured like the notum of the mesothorax ; 

 the side-pieces are rather deeply sunk and transversely ridged, but without any 

 boundary between them and the central piece. 



Fore ivings (fig. 3, a) almost triangular, over two and a quarter times as long as 

 broad. Length, 3 '8 mm.; breadth, 1*6 mm. Submarginal : marginal : radius : 

 post-marginal, as 16 : 7 : 1 : 1. Pubescence of the wing fine and dense to below the 

 marginal vein. Basal triangle and a narrow tapered space along the hind margin 

 (ending before the level of the radius) bare. The long submarginal cell bears 

 numerous short fine bristled, and on the marginal vein are two more or less complete 

 rows of feeble fugacious bristles ; the marginal, radius and post-marginal are densely 

 set with short stiff bristles. Both marginal and radial veins broad, the latter with 

 a group of eleven to twelve pustules terminally, none of them projecting beyond the 

 margin of the vein (fig. 3, 6). The post-marginal is represented by a short, tapered 

 thickening with indistinct outline, but certainly not longer than the radius. 



Fia. 



3. Timioderus refrinqens, $ ; a, fore wing ; 

 b, radius ; c, hind wing. 



Hind wing (fig. 3, c) four times as long as broad ; length, 2'8 mm. ; breadth, 0*7 mm. 

 The submarginal cell extending to the hooks, pubescent, except narrowly in front of 

 the vein. But for a bare line at the apex, the wing is otherwise evenly pubescent. 

 The frenulum consists of six curved hooks, arching over a patch of short spinose 

 bristles, arranged in three rows of about ten each. 



Legs : the outer surface of all the coxae coarsely raised reticulate, like the thorax, 

 etc. ; the inner surface smooth and clad with silvery pubescence tow"ards the apex. 

 The legs are otherwise smooth and pubescent. All the tarsal joints bear apically 

 on the plantar aspect several strong «tiff hyaline bristles. Above the insertion of 

 the tibial spurs are 2-3 spines, but neither on the anterior nor on the posterior legs 

 is there any complete transverse row. Similarly, the comb of the first tarsal joint is 

 wanting, though all the bristles on the anterior aspect are thickened and spinose. 



