LAMIIJJAE. '707 



just double its length, rath»ir more convex, widest before the middle, sub- 

 vertical behind ; evidently subseriate-punctate, rather distantly so, to 

 behind the middle, the subtriangular nigrescent spot near each hind thigh 

 rather long. 



Antennae stout, somewhat shorter than the body, with greyish 

 pubescence and outstanding setae ; basal joint much stouter than the 

 third, the latter attaining the shoulder and nearly double the length of 

 any of tlie following ones. 



The thorax is shorter and much less narrowed towards the base and 

 apex than in S. fidvipes and *S'. heterarthra (2997), the latter, moreover, is 

 a narrower species with niore slender thoracic spines. 



Length, 3 mm. ; breadth, IJ mm. 



Wangaroa. Described from a specimen found in leaf-mould collected 

 for me by Mr. L. T. Griffin, F.Z.S., on the 3rd April, 1914. 



Group Halticinae. 

 Trachytetra .Sharp. Man. N.Z. Coleopt., p. 1311. 



4321. Trachytetra frontalis sp. nov. 



Subovate, moderately convex and nitid ; fusco-testaceous, elytra along 

 the middle and terminal joints of antennae fuscous. 



Thorax rather broader than long, moderately coarsely and closely 

 punctate ; with obtuse basal angles, the anterior deflexed and hardly 

 visible when looked at from above. Scutellum short, curvate behind. 

 Elytra not thrice the length of thorax, scarcely any wider than it is at 

 the base ; coarsely and closely punctate, almost as coarsely near the 

 apices. 



Underside jjale fuscous, sparingly clothed with greyish hairs ; abdomen 

 finely irregularly transversely rugose. Prosternal process narrower than 

 that of T. rugulosa (1116), that between the middle coxae also narrower 

 and more convex. 



Somewhat similar to T. rugulosa, in which, however, the thorax is 

 almost transversely quadrate with the anterior angles quite visible from 

 above ; the scutellum is usually, in 1116, minute or obsolete. 



Length, 2| mm. ; breadth, 1^ mm. 



Belgrove, near Nelson ; 20th October, 1914. Another of the late 

 Mr. T. Hall's numerous novelties. 



4322. Trachytetra robusta sp. nov. 



Convex, subovate, nitid, glabrous, castaneous. 



Head smooth, with a well-marked longitudinal groove behind the 

 antennal insertion ; the transverse hinder portion convex. Thorax nearly 

 twice as broad as long, apex subtruncate, the base slightly curved towards 

 its obtuse angles ; the sides distinctly margined, a little curvedly narrowed 

 and deflexed anteriorly : disc apparently smooth, with only a few minute 

 scattered punctures. Scutellum indistinct, very short and broad. Elytra 

 cordate, slightly wider than thorax at the base, widest before the middle, 

 gradually narrowed posteriorly, finely margined, their length thrice that 

 of the thorax ; moderately coarsely and irregularly punctate, more finely 

 and distantly behind. Pygidium covered. 



Legs finely pubescent, posterior tibiae grooved externally. Mesosternal 

 process broad and plane. 



