390 Mr. B. P. Uvarov on 



impresserl, marginate, more than twice as long as broad, witli 

 the upper and lower margins straight and parallel, hind 

 angles straight, tlie apex obliquely rounded ; eyes oval, with 

 the fore margin straight, their height exceeding the height 

 of the infra-ocular part of cheeks more than twice. Pro- 

 notum strongly compressed laterally ; its disc neayly Hat, 

 slightly widened posteriorly and forming straight though 

 rounded angles with the lateral lobes ; the median keel well 

 expressed throughout, rather thick, interrupted in about the 

 middle by the typical sulcus ; no distinct lateral keels^ which 

 are replaced by the smooth, straight lines along the lateral 

 margins of the strongly punctured disc ; fore margin of the 

 disc very widely rounded, slightly prominent; hind margin 

 rounded in the female and rotundato-angulate in the male ; 

 lateral lobes a little higher than long, feebly narrowed down- 

 wards, with the lower margin obtusely angulate in the middle, 

 its hind part being horizontal, slightly excavate, and the fore 

 ])art obliquely ascendant. Elytra fully developed, in both 

 sexes extending a little beyond the hind knees, hyaline 

 throughout ; nn diastinal area with the basal dilatation ; 

 scapular area strongly dilated in the male and less so in the 

 female ; discoidal iirea parallel, with an irregular and in- 

 complete false vein ; interulnar area in the male a little 

 dilated, without false vein, in the female only slightly wider 

 than the discoidal area, with a false vein. Wings with 

 normal venation, coloured at the base. Prosternura with a 

 large, though feehly prominent, transverse swelling. Meso- 

 sternal lobes in (^ only slightly, in the ? distinctly trans- 

 verse ; their inner margins strongly rounded : hind angles 

 rounded ; hind margins nearly perpendicular to the sides of 

 the sternum ; mesosternal interspace much longer than its 

 narrowest width, strongly widened anteriorly and posteriorly. 

 Metasternal lobes in both sexes contiguous ; their median 

 suture long, straight. Tympanum semi-open. Hind femora 

 only feebly incrassate basally ; their apical third attenuate. 

 Hind tibiae distinctly widened towards the apex, armed with 

 8-9 outer and 10-11 inner spines ; the lower inner spur 

 almost straight, half as long again as the upper inner one 

 and subequal to half the first tarsal joint. Supra-anal 

 plate of the male much longer than broad, lance-shaped, 

 with small lateral angles near the apex ; cerci straight, 

 slightly compressed la erally, a little longer than the supra- 

 anal plate ; subgenital plate obtusely conical. Upper valves 

 of the ovipositor without, the lower with rounded teeth ; 

 the apices of all valves strongly curved, sharp; subgenital 

 plate of the female much longer than it is broad, widened 



