60-i Capt. T. Broun on 7ieiv 



Tnchosternus hucoUcus, sp. u. 



Oblonr/, moderately convex, sinning viridi-geneous; legs and 

 antennae pitchy red, tips of the palpi paler, front margin of 

 labrani red. 



Head smooth, with the ordinary frontal impressions. Ej/es 

 prominent. 2horax subquadrate, 3 lines broad by 2j long; 

 apex arcuate-emarginate, base slightly notched ; its widest 

 part is just before the middle, behind that point it is slightly 

 and gradually narrowed to the rectangular angles, anterior 

 angles rounded ; the dorsal furrow extends from base to apex, 

 but becomes feeble in front, the foss^ are large, and the 

 marginal channel is of uniform width until it comes in line 

 Avith the fossfe, where it is expanded. Elytra ovate-oblong, 

 shoulders dentiform, posterior sinuosities slight ; their strife 

 are well marked, their punctuation, however, is very fine; 

 the third and seventh interstices bear four or six punctures on 

 each. 



Underside glossy black, head viridescent, coxeg rufescent. 

 Prosternum setose at the tip. Ventral terminal segment with 

 two pairs of setigerous punctures. 



T. hampdenensis is the only similar species ; it has, how- 

 ever, a rather broader head and thorax^ the sides of the latter 

 are more curvate; the elytra are more sinuously narrowed 

 posteriorly, their striae, though finely, are more distinctly 

 punctated, and the interstitial sculpture differs. 



S . Length lOi, breadth 3f lines. 



(Stephen's Island. 



Found by Mr. J. H. Lewis. 



Pteroatichus KirkianuSj sp. n. 



Nigrescent, with reddish metallic reflections near the tho- 

 racic foveee and on the elytra. 



Head rather short, marked with numerous longitudinal 

 strife near the frontal impressions. E/jes prominent. IViorax 

 2 J lines long by 3 broad, basal and frontal margins evidently 

 incurved, widest at the middle, its sides only moderately 

 rounded, a little narrowed but scarcely sinuated behind, 

 posterior angles rectangular ; the discoidal groove nearly 

 reaches the apex, the basal fossse are large but not very broad, 

 the disk is feebly transversely strigose, and the base bears 

 longitudinal striae. Elytra a good deal narrowed and sinuated 

 apically, shoulders dentiform ; their stria3 are well marked 

 and finely punctured, the interstices are moderately convex, 



