390 Mr. B. P. Uvarov 07i 



impressed, nofirg^inate, more than twice as long as broad, with 

 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 lateially ; its disc nearly flat, 

 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, sliglitly ])rominent; hind margin 

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

 lateral lobes a little iiigherthan long, feebly narrowed down- 

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

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

 part obliquely ascendant. Elytra fully develo[)ed, in both 

 sexes extending a little beyond the hind knees, hyaline 

 throughout; mediastinal 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 witii 

 normal venation, coloured at the base. Prosternum with a 

 large, though feebly prominent, transverse swelling. Meso- 

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

 verse ; tlieir 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 subcqual to half the fii'st tarsal joint. Supra-anal 

 plate of the iiiale 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 



