406 Major T. Broun on new 



central portion, from the middle of the eyes to the base of the 

 labrum, being considerably depressed; eyes prominent, their 

 orbits swollen below and behind ; labrum arcuate emarginate. 

 Thorax 2^ lines long by 3^ broad ; apex obviously incurved, 

 the base less so ; widest near the front, moderately rounded 

 near the middle, gradually narrowed towards the acutely 

 rectangular posterior angles ; marginal channels wide and a 

 little expanded behind ; the dorsal sulcus attains the basal 

 margin, near which it is most conspicuous, there is a curvate 

 frontal impression, the basal fossae are large. Elytra oblong- 

 oval, strongly sinuate apicallv, humeral angles dentiform 

 and projecting so as to distinctly exceed the base of the thorax 

 in width; they are evidently striate, with fine punctures; 

 the sutural two interstices are plane, the others distinctly 

 convex, all of about equal breadth ; the third has four, the 

 seventh five or six large punctures, marginal sculpture 

 coarse. 



Underside glossy black, without well-marked sculpture; 

 terminal ventral segment with two setigerous punctures at 

 each side of the middle at the apex. Legs normal, external 

 angle of intermediate tibiae prolonged, so as to cover the 

 basal half of the first tarsal joint. 



When compared with T. antarcticus, the apical portion of 

 the elytra is seen to be more sinuously narrowed and the 

 humeral angles more prominent ; the labrum is more deeply 

 incurved. The most remarkable character, however, which 

 distinguishes this from every other species of T richosternus is 

 the cavity which occupies so large a portion of the head. 



cJ . Length 12 ; breadth 4| lines. 



Ashburton. Discovered by Mr. W. W. Smith. 



T richosternus hanmerensis, sp. n. 



Subohlong, shining, nigrescent, lateral margins slightly 

 viridi-cupreous ; legs, antennae, and palpi piceo-rufous. 



head smooth, inter-antennal impressions well developed. 

 Eyes large and prominent ; genae simple. Thorax 3£ lines 

 in breadth by 2£ in length, widest near the middle, its sides 

 gently rounded, moderately sinuously narrowed behind, poste- 

 rior angles rectangular, base and apex widely emarginated ; 

 disk but little convex and almost smooth, dorsal groove 

 distinct but feeble at apex, basal fossae large and expanded 

 towards the angles. Elytra at the base rather wider than 

 thorax, rather more so at or behind the middle, humeral 

 angles dentiform, sinuously yet only moderately narrowed 

 apically ; they are punctate-striate, the punctuation is tine 



