358 COLKOPTKHA. 



Elytra oblong-oval, a little wider than thorax at the base, nearly thrice its 

 length; along each elytron there are three somewhat indefinite, irregulaiv 

 smooth dorsal lines, these are distinct at the base but become obsolete 

 behind ; the sculpture between the suture and 2nd is irregularly but not 

 deeply punctiforni, that beyond consists of more or less transverse but 

 very irregular impressions, these arc sometimes divided into suboblong 

 areas by smooth, transverse, linear connections between the 2ud and 3rd 

 longitudinal lines ; the common smooth costa near the side is narrow, it 

 does not reach the apex, and, before the middle, is quite obliterated by tin' 

 coarse lateral sculpture. 



At first sight, owing to the (>lytral sculpture, this may seem like M. lemsi 

 (2604), but as the thoracic margins are crenulate it really belongs to a 

 different section of the genus. The thorax is differently shaped, and instead 

 of ha^'^ng rather thin, nearly flat lateral margins as in M. leivisi, they are 

 thicker and slightly reflexed. 



Length, 34^37 mm. ; breadth, 10-11 mm. 



Gordon's Knob, near Belgrove. Four individuals received from Mi. 

 T. Hall, who spent three days on the mountain in November, 1914. 



3796. Diglymma basale sp. nov. Diglymma Sharp, Man. N.Z. Coleopt., 

 p. 980. 

 Elongate, narrow, moderately convex, nitid ; black, mandibles, legs, 

 and antennae rufo-piceous, tarsi and palpi more rufescent. 



Head nearly as broad as front of thorax, somewhat depressed and 

 punctate behind the eyes, generally with a few^ finer punctures alongside 

 the broad plica near each eye. Thorax apparently elongate, really of 

 almost equal length and breadth, base and apex truncate, its sides dis- 

 tinctly and evenly margined, moderately roimded, more strongly behind 

 so that the straight-sided base seems a good deal contracted, posterioi- 

 angles rectangular ; disc almost smooth, having only some feeble, often 

 obsolete striae across it, basal fossae elongate and deep and situated close 

 to the sides, the intervening space finely and sparingly punctured, the 

 middle of the apex with similar punctures and obsolete longitudinal striae, 

 mesial groove well marked but not reaching the base or apex. El}i;ra 

 oblong-oval, double the length of thorax, broader near the middle, their 

 shoulders gently curved, yet a little wider than the thoracic base and with 

 rather thicker margins than the sides ; their finely but distinctly punctured 

 striae are moderately deep near the suture, sometimes obsolete near the 

 apices, the sides with several large punctures ; interstices almost plane. 



Intermediate tibae slender at the base, expanded l)elow the middle. 



Underside shining. Flanks of prosternum rather distantly punctate. 

 the abdomen less distinctly near the sides, apex of last segment quadri- 

 punctate. 



D. margitiale (3507) is distinguishable by the long sinuation of the side 

 of the thorax towards the more sharply marked posterior angle, by the 

 luore strongly developed elytral margins and less convex body. Sharp's 

 J), ovipenne (1766) has apparently more deeply striate elytra, and the base 

 of the thorax and its angles seem different. 



Length, 12-15 mm. ; breadth, 4-5 mm. 



Ben Lomond, Mount Alfred, and Routeburn. Several specimens w-ere 

 found bv Mr. T. Hall, at elevations of 2,000 ft. to 4,000 ft., during February. 

 1914. 



