100 REVISION OF SYMPETKS AJ<D HEL^US, ETC., 



Hel^us approximatus, u.sp. 



Elongate-ovate, glabrous, piceous-black, subnitid, almost 

 impunctate above, underside piceous with margins and legs 

 lighter colour. 



Head with labrum slightly emarginate and fringed with 

 reddish hair, epistoma truncate and reflexed, minutely granulose, 

 eyes almost contiguous, centre of forehead in front of eyes 

 depressed, antennse rather slender, joints 9 and 10 shorter but 

 not wider than the rest, eleventh elongate-ovoid, raentum cordate 

 and longitudinally carinate. Prothorax transverse(8 x 11^ ram.), 

 widest at base, uniformly narrowing to apex, much less convex 

 than H. dlipticus Lea, margins widely reflexed, thickly bordered 

 at base, border becoming gradually obsolete towards apex, 

 anterior angles acute and overlapping at the points, posterior 

 angles acute, markedly dentate and produced downwards, anterior 

 processes minutely punctate near the edge. Disc impunctate,. 

 with central carina more uniform and less elevated than in U. 

 ellipticus, not extending to either margin, and less strongly 

 "beaked" behind; base strongly trisinuate, with margin closely 

 serrated. Scutellum widely triangular, concave and defined by 

 raised border, punctulate. Elytra ovate, subparallel on the 

 anterior half, a little narrower than prothorax at base, humeral 

 angles subdentate, obtuse(about 100°), concave margins less wide 

 than those of prothorax, with reflexed border on sides only con- 

 tinued for a short distance at base and becoming gradually 

 attenuated to a thin line at apex; edge of border (viewed side- 

 ways) strongly ccncive, this lateral channel narrowing from base 

 to apex, but distinctly narrower than in II. ellipticus. Disc with 

 suture evidently carinate towards apex, less so anteriorly (exc-pt 

 on sides of scutellum), with two strongly raised carinas on each 

 side of the suture, these carinse 6nely sinuate when viewed closel}', 

 slightly curved outwards at the middle, and terminated near the 

 summit of the apical declivity; a row of small lateral pustules 

 beainnin2 behind the humeral callus and obsolete on apical 

 curve. Prosternal keel moderately raised, not notched, but 



