Genera and Species of l\ew Zealand Cohoplera. 55 



leaflets in both sexes^ and about as long as the preceding four 

 joints combined, 



Lenfi:th 7i, breadth 4-4| lines. 



Ci'oinwell. 



Dcscrilied from three mutilated individuals found by 

 IMr. J. H. Lewis on the sand-hills of JNlolyueux River. 



Group Dynastidse. 

 Pericoptus frontalis, sp. n. 



Fusco-piceous, a little shining ; legs and antennae ferru- 

 ginous. 



Thoi'ax stronjjly transverse^ anterior angles oblique and 

 very obtusely rounded for quite a third of the entire length, 

 its sides neaily straight beliind, base bisinuate ; the frontal 

 protuberance is very small or obsolete, and tlie impression 

 just behind it is shallow; the fovea-like depression near each 

 side is more distinct. Elytra oblong, apices subtruncate; 

 each bears a sutural stria, the punctuation is distinct but 

 irregular. 



Underside rather closely and finely sculptured, the punc- 

 tures on the abdomen are most distinct. Pygidium closely 

 and finely punctured. Sternal villosity very slen ler and 

 elongate, testaceous. 



Head with rather shallow scanty punctuation behind; the 

 anterior margin of this part is rather a!)ruptly dedexed, but 

 not at all ridged, and forms a sort of step to the lower plane 

 of the frontal portion; this latter anterior part is somewhat 

 horizontal and has a transverse depression at its base, its 

 sides are nearly straight for half its length, but are then 

 obliquely narrowed, tlie refli-xed and truncate apical margin, 

 howev-r, occupies about one- half of the whole width ; the 

 frontal sculpture consists of moderate longitudinal rugre near 

 the s'dcs, but the jnicklle is nearly smooth ; there are no 

 distinct punctures there. 



The hi^ad is, 1 think, sufficiently differentiated from that of 

 the other species to render its recognition easy when carefully 

 compared with typical specimens, but as many other students 

 may not possess these types, I now add brief notes for 

 reference. 



P. truacatus. — Head short, its frontal portion flattened, 

 but fornnng a rather abrupt declivity ; in shape it is, roughly, 

 traiisversidy oval. 



P puactutus. — Head, in front, on nearly the same plane 

 as in P. (runcatus, but, instead of being transversely oviform. 



