148 COLKOI'TEIJA. 



1-nthor l)i-oa(k'r than tlie tin. rax, nioi-e tliau double its leiif^th. slit^^litly 

 curvedly nairnwud near tlie l)asc; their sti-iae deep, reo;ulai-, tdosely 

 and rather coai-sely jjunctured, tlie interstices neai- tlie snture are rather 

 broader and tiatter than the outer ones, the 9tli is broad and smooth 

 but does not extend to ttir shimbler, the marginal ))inic'tures l)econie 

 iireguhir behind. 



Undeiside nearly smooth; prosternal process l)ritadlv inqircsseil be- 

 tween the coxae; terminal ventral segment quadripuiictate at the apex. 



Antennae distinctly pnliescent from tlieir ^tli joint (inwards. An- 

 terior tibiae moderately ])rolonged at the outer extremity, tlie inter- 

 mediate strongly, the posterior hardly at all, angulate externally. 



Th- (.viform thorax and more elongate elytra distinguish tliis species 

 from .1/. doulli, 2G11. In Sharp's M. aulcatum, 1764. tlie head is with- 

 out rugae, and the thoracic margins are infringed on l)y the 6 setigerous 

 ]Minctures at each side. 



(J. Length, 20 nun. ; breadth, (> mm. 



Otaraia, near .Martinl)orough. Described from a specimen found 

 by .Mr. A. C. O'Connor in Apiil. l!lll. 



3507. Diglymma marginale sp. nov. Dicjlymhia Shiirp, Man. N.Z. 

 Coleopt.. p. 980. 



Elongate, only slightly convex, nitid ; black, legs iiifo-piceous. 



Head, including the large and ])iomiiient eyes, quite as broad as the 

 front of the thorax, depressed and finely punctate behind so that the 

 vertex seems convex; labrum medially emarginate. Thorax apparently 

 elongate, really just as broad as it is long; its sides trisctose, distinctly 

 margined, only moderately rounded near the middle, sinu(uisly nan-owed 

 behind, yet straight near the rectangular posterior angles; basal fossae 

 elongate, situated near the sides and extending to the base, the space 

 between them with numerous distinct i^unctures, the middle of the basal 

 margin has several very short striae; near the subtruncate apex thei'e 

 are some fine i:)unctures and a shallow fovea near each side, the centi-al 

 groove almost attains the base and apex. Elytra elongate-oval, twice 

 the length of the thoi-a\ ;ind rather broader than it is at tin- !)ase, 

 the lateral margins somewhat retlexed and thickened, near the rounded 

 shoulders particularly; their striae are moderately deep and very finely 

 punctate, but become irregular towards the extremity, tlie half-dozen 

 marginal iiunctures are rather coarse. 



Underside glossy black, flanks of ])rosteinum finely rugose and 

 punctate, the abdomen with undulating slender rxigae, its terminal 

 segment quadripunctate at apex. 



Antennae shorter than the head and tliorax, .'5rd joint i-ather longer 

 than contiguous ones, chestnut-red and with distinct fulvous pubescence 

 from the r)th joint onwards. 



Tibiae without any aj)ical pi olonuation ; middle tarsi almost as 

 elongate and slender as the posterior. 



Rather less convex, and with mme stidngly developed elytral margins 

 tlian usual. .Mentum tooth simple, triangular. 

 ?. Length, Hmm.; luoadth, 4i mm. 



Hump Ridge, near Invercariiill ; Fel)ruarv, 1912. One from Mr. A. 

 Philpott. 



