Species of New-Zealand Coleoptera. 409 



ratelj convex, slightly undulate behind, all (including the 

 suture) marked with shallow fine punctures. 



Underside shining violaceous black, nearly smooth. Ter- 

 minal ventral segment with one setigerous puncture only 

 at each side of the middle at the apex, as in Z. putus and 

 Z. pri?iceps. 



Posterior tibice with a stout flexuous calcar ; basal joint of 

 the tarsi compressed, broadly grooved underneath, and ridged 

 along the inner side. 



Z. princeps (no. 1457) can bo distinguished by its red 

 tibise, Z. putus by the dark colour and longer elytra. In 

 Z. calcaratus the first joint of the posterior tarsi is not 

 laterally compressed, whilst in Z. achilles, which I have not 

 seen, the corresponding joint appears to be dilated inwardly. 



$ . Length 10^ ; breadth 3^ lines. 



Nelson. I am indebted to Mr. G. V. Hudson for my 

 specimen. 



Pterostickus turgidiceps, sp. n. 



Elongate, subdepressed, only slightly nitid, nigrescent; the 

 antenna and tarsi piceo-rufous ; palpi infuscate red. 



Head (mandibles included) one-fifth longer than thorax, 

 nearly as broad as that is; the genaa and ocular orbits swollen, 

 the former nearly straight from the base of the mandibles 

 to behind the eyes ; ocular carinse simple, the two frontal 

 impressions moderate, the surface smooth ; there are two 

 setigerous punctures near each eye and two on the forehead ; 

 on the labrum there are six ; both forehead and labrum are 

 widely incurved in front. Mandibles very thick, rather long, 

 and slightly curved at the extremity. Eyes rather small, not 

 flat, yet not at all prominent. Antennse with yellow pubes- 

 cence from the fourth joint onwards ; the first three and the 

 base of fourth are glabrous. Thorax almost as long as 

 broad, apex very slightly emarginate, with obtuse and not in 

 the least prominent angles ; the base somewhat obliquely 

 emarginate towards the middle; lateral margins simple but 

 well developed, of equal thickness throughout, with four 

 setigerous punctures at each side; it is widest near the front 

 and gradually narrowed, but not perceptibly sinuate, towards 

 the rectangular but not acute posterior angles in the female : 

 in the male the posterior sinuosity is evident, so that the 

 angles appear slightly projecting though not acute, its sides 

 are gently rounded but not as broad in front as in the female ; 

 disk rather flat, the central groove not abbreviated, basal 



Ann. & May. N. Hist. Ser. 8. Vol. ii, 29 



