OF NEW ZEALAND. 1093 



1943. C.SUbcseCUS, "-s. (Sharp; Trans. Ent. Soc. , lSS2,'PaYti., 

 p. 80.) Piceus, pedibus piceo-ruiis, antennis rufis, opacus, quasi squa- 

 matim-grannloso, elytris longitudinaliter costatis ; prothoi*ace magno, 

 margine anteriore utrinque profunde sinuato, in medio setuloso. 



Long., 2fmm. 



Head with a comparatively shining space on the middle, im- 

 pressed on either side of this. Thorax large, about as long as broad ; 

 owing to the deep sinuation on either side of the front margin, the 

 middle has the appearance of being produced, and this prominent 

 part bears closely-set, curled-upwards, pale setae ; behind this is an 

 indistinct longitudinal impression, and the surface shows a very 

 peculiar sculpture, something like scales, or as if there had been 

 tubercles shaved off. The elytra are scarcely twice as long as the 

 thorax, and are somewhat narrowed behind, and a little truncate at 

 the extremity ; they bear a sculpture somewhat similar to that of 

 the thorax, except that ihey are smaller, are less definite, and are 

 suboblong instead of round ; from the base there starts a rather 

 sharply elevated longitudinal elevation, which extends two-thirds of 

 the length, and external to this are one or more very much shorter 

 and more indistinct elevations. 



This creature is, notwithstanding its small size, one of the most 

 interesting of Mr. Helms's discoveries at Greymouth. 



Group-PYCNOMERIDiE. 

 Pycnomerus. 



1944. P. marginalis, n.s. Elongate, shining, intense black, 

 legs and anteunte rufo-piceous, tarsi dark-red. 



Head quadrate, ocular folds and front margin on nearly the same 

 plane ; foves deep in front, prolonged backwards, so that the middle 

 appears convex ; these raised parts moderately punctured. Anteyince 

 with the eleventh joint indistinct, looking as if sunk into the large 

 tenth joint, the suture indicated by yellow pubescence ; second joint 

 very transverse, third longer but narrower. Eyes minute, concealed 

 by thoracic angles. Thorax oblong, apex slightly oblique but hardly 

 at all sinuate towards the sides, so that the angles are rectangular 

 but not projecting ; lateral margins rather narrow, a little thicker a 

 short distance from the front, forming an indistinct angle and mark- 

 ing where each side begins to contract anteriorly, behind this angle 

 the side is nearly straight ; two deep impressions on the disc are 

 separated by a moderate smooth space, and a transverse depression 

 exists close to each hind angle ; the surface coarsely and distantly 

 punctured. Scutellum invisible. Elytra broadly curvate laterally, 

 widest near the middle, the humeral angles projecting beyond base 

 of thorax, rendering its posterior angles indistinct ; striae somewhat 

 flexuous, deep, less than twelve elongate impressions in each stria, 

 sometimes only six or seven, the three sutural grooves very deep 

 behind; interstices rather broad, often a little transversely uneven, 

 the third and fifth, and the suture, reach the narrow basal margin, 

 the second and third most elevated behind. 



