|0!S F. H. Gravely. 



the upper and inner angle of each is produced, in the only unworm 

 specimen bef ore nie, to form a small blunt denticle ; the ridges joining the 

 outer to the inner tubercles are sometimes indistinct, especially on the right 

 side. The whole of the anterior margin of the head, together with the 

 canthus, is strongly rugose. The median groove of the pronotum is 



r 



Fig. 2 ß. 

 Head of Hyperplesthenus impar, Kuwert. x 4. 



markedly incomplete in front, and the scars are smooth and hairless. The 

 scnt eil um is less distinctly or not grooved in the middle line, and is 

 unpunctiired outside the usual punetured and pilose area in the middle 

 of the anterior margin, whieh in the type specimen is very large. The 

 unpunctiired posterior part of the m es o thoracic ep ister na is somewhat 

 more extensive than in H. glaber. The scars of the mesosternum are 

 perhaps a little smaller and deeper. The grooves of the elytra are 

 unpunctiired. 



Hyperplesthenus gracilis (Heller). 



Redescribed from two speeimens (paratypes) from the Toricelli 

 Mountains, Kaiser- Wilhelms-Land, New Guinea, and from one from the 

 frontier between G-erman and Dutch New Guinea ; all in the Deutsches 

 Entomo logisches Museum. 



Length 36 — 38 mm. This species resembles both the preeeeding 

 ones except in the following respects. The anterior margin of the lab nun 

 is not distinctly coneave. The upper tooth of the mandibles, though 

 very small. is somewhat more acute. The puneturing of the mentum 

 is never more, and may be even less, extensive than in H. glaber: the 

 scars are variable, being either «-shaped or almost straight. and may or 

 may not be united behind. The upper surface of the head closely 

 resembles that of H. impar, but the inner and Upper angle of the right 



