New Zealand Coleoptera. 81 



Antennae rather stout, quite red ; club strongly tri- 

 articulate. Thorax very uneven, smuate on each side in 

 front, so that the middle much covers the head, narrowed 

 in front, the surface much hispid, especially at the sides, 

 the side behind the middle divided by a deep transverse 

 fissure ; the part in front of this fissure is produced 

 backwards, so as nearly or quite to touch the portion 

 behind the fissure, and so as to leave internal to this 

 point of contact a window or opening through the surface 

 of the thorax, which however is frequently concealed by 

 being filled up with an exudation, or with the vegetable 

 substance amongst which the insect lives ; in front of the 

 hind angle the thorax is much narrowed, and the hind 

 angle projects backwards as a large triangle. Elytra 

 with very large and greatly elevated tubercles, which 

 bear a coarse tomentum ; between the tubercles are 

 numerous, rather indefinite but large, punctures or pits, 

 and the surface is also sprinkled with numerous con- 

 spicuous erect setae. Under surface opaque, but without 

 clothing. Tibiae setose externally. 



Greymouth ; No. 65, Helms. 



This very remarkable insect I first received from Mr. 

 Eeitter, of Vienna, and, supposing it might go into the 

 genus Syncal'us, proposed to call it Syncalus Reittcri. I 

 find, however, it departs much from Syncalus by the 

 more approximate middle and hind legs, and I have 

 therefore called it Acosmetus Reitteri, as it agrees 

 tolerably well with the characters assigned by Broun to 

 this generic name. "Whether it be really congeneric with 

 Broun's two species of the genus is doubtful, as I have 

 seen neither of them. 



Nosodendron zealandicmn, n. s. 



Ovale, convexum, nigerrimum, sat nitidum, antennis 

 tarsisque piceis, vix pubescens, dense punctatum, et in 

 elytrorum parte basali punctis seriatis parum conspicuis. 

 Long. 5 — 6 mm. 



Head rather elongate, densely punctate. Thorax short 

 and broad, very closely applied to the elytra, and con- 

 tinuous in outline with these, very transverse, regularly 

 narrowed from the base to the front. The surface very 

 densely punctate. Punctuation of elytra finer and not so 



TRANS. ENT. SOC. 1882. — PART I. (APRIL.) M 



