OF NEW ZEALAND. 773 



Psorochroa. 



Nov. gen. 



Head small, obliquely narrowed and carinated towards the front, 

 the middle obtuse, confounded with the clypeus, the latter indis- 

 tinguishable ; labrum prominent, rounded, nearly on the same plane 

 as the forehead, separated from it by a deep channel; mandibles 

 robust, bideiitate at apex. Antenna half the length of the thorax, 

 inserted below the forehead immediately in front of the eyes ; basal 

 joints largest, third longer than second, the latter equalling the 

 fourth; joints 4-10 sub -triangular; eleventh broadly oval. Protliorax 

 broader than long, rounded laterally, tri-sinuate at base, posterior 

 angles prominent, not divergent. Scutellum oblong. Elytra mode- 

 rate, narrowed behind. Chin-piece extending to the tips of the 

 mandibles. Prosternal sutures widely open in front only, straight, 

 attaining outer edge of coxae. Prosternal process nearly flat above, 

 depressed at the extremity. Mesosternal cavity with raised hind 

 margin, reaching the broad inter-coxal depression. Coxal lamina 

 moderate, abruptly reduced beyond the trochanter. Tarsi rather 

 compressed, all the joints well-developed, hispid below. Body 

 apterous. 



1370. P. granulata, n.s. Sub-opaque, variegate, elytra ob- 

 scure-brown, thorax paler and brighter, legs and antennae obscurely 

 coloured. 



Head slightly depressed in front, with coarse punctures on its 

 anterior edge. Prothorax curvedly excised in front, narrowed towards 

 the blunt front angles, nearly straight behind the middle; the 

 posterior angles carinated, overlapping the shoulders, slightly in- 

 curved and deflexed at the extremity ; it bears many minute glossy 

 black granules, and short fulvous setiform hairs. Elytra with 

 rounded shoulders, slightly curved sides, gradually narrowed behind, 

 almost plane ; sub-striate, interstices uneven, with fewer and smaller 

 granules than the thorax, and with similar but more rufescent setae. 

 Underside rather dull, blackish ; flanks of prosternum coarsely but 

 remotely punctured, the rest not distinctly sculptured; sparsely 

 clothed. The antenna are covered with pubescence on the sides 

 only ; joints 4-10 are dilated inwardly, but not acute, at the extremity. 



An occasional puncture may be noticed in the elytra grooves, and 

 the humeral regions are more or less obtusely tuberculate. 



Length, 8-9 lines ; breadth, 2 j-3j. 



Mr. P. Stewart- Sandager found this curious insect in the crevices 

 of rocks on " The Brothers " (Cook Strait). 



Cryptohypnus (p. 295). 



I 37 I - C. montanus, n.s. Sub-parallel, almost depressed, 

 moderately glossy, blackish-brown, legs flavo-testaceous, antennae 

 rufescent, clothed with short yellowish hairs. 



Head broadly impressed, finely and not closely punctated. Pro- 

 thorax as long as broad, obtusely rounded laterally, contracted near 

 the base, convex, its posterior angles carinate, prominent, sub-acute 



