Fions ami vertex strait^ht at the apex ; vertex quadrate ; elytra clear in their two 

 forms, but also black or brown when they are short, sometimes frini^ed with 

 white 7- 



6 Frons and vertex obtusely an;^al.ir at a]K'x, sides elevated at the base, pressed 



a':;ainst the eyes at apex ; head seen from the side short, cone-shaped ; vertex 

 before pentagonal ; body short and black, even as are the elytra which are 

 coriaceous. 

 Frons with two sharp keels curved outv\'ardly, approachmg very close and con- 

 verging at the apex, slightly separated from each other at the clypeus which 



is convex and without keels G. i6. Jassidaeus, Fieber. 



Frons with feeble traces of 2 keels, more distinct in th*e 9. ^'-''"y rarely touiid in 



the 3 ; clypeus convex with a short and feeble keel, sides keeled 



G. 17. Metropis, Fieber. 



7 Frons with the keel forked much befoie the vertex 



G. 18. Dicranotropis, Fieber. 



Frons with 2 sharp keels as far as the vertex parallel, afterwards coming together 

 at the level of the clypeus G. 19. Achorotele, Fieber. 



8 Frons with two distinct keels 11 • 



Frons without a keel or only feeble traces of a keel 10. 



Frons with a distinct median keel. 



Fions long, narrowed, much narrowed towards apex, sides generally curved 

 outwardly, at the apex a sharp, biforked keel extending nearly to the 

 angles of the na]:)e of the neck, with an angular keel lietween the two 

 branches ; wing nerves strong, prominent ; basal antennal joint short, almost 

 as long as wide G. 20. Stenocranus, Fieber. 



Frons elongated, nearly hexagonal, wider towards the inferior angles of the eyes, 

 Its apex ordinarily truncate, very rarely curved ; the median keel feeble, 

 generally curved, sometimes straight, lost at the apex, again distinct on the 

 vertex and forked towards the angles of the nape of the neck ; basal anten- 

 nal joint short, a little longer than wide G. 21. Kelisia, Fieber. 



Vertex short, an isosceles triangle or transversely triangular, slightly passing 



the eye 9. 



Vertex elongated, quadrangular or trapezoidal, passing beyond the eyes, nearly, 

 or more than half its length. 



Vertex rectangular, not one and a half tunes as long as wide ; frons of nearly 

 equal breadth between the eyes, a little narrower towards the apex and sin- 

 uated, about three times as long as wide at the clypeus ; median keel of 

 frons shar|). forked before the apex to scarcely back of the middle of the 

 vertex, shortened here by the angular projection and directed on the angle 

 of the nape of the neck ; basal antennal joint cylindrical, more than twice 

 as long as wide G. 22. Euides, Fieber. 



9 F'rons elongated, almost hexagonal, broader between the inferior angles of the 



eyes, towards the apex at the sides, short, towards the base at the sides, long, 

 much narrower at the clypeus then at its apex which is straight, median keel 

 sharp on the fions, which is smooth, forked before the apex, basal antennal 

 joint short, thickened, compressed, prolonged to the middle of the cheek, 

 slightly longer than half the length of the second ; the second joint seen from 

 before broader at the base, slightly compressed, and with an elongated hump 

 near its miiklle beneath, where there is a small groove at the prominertt 



