432 Transactions. 



Antennae reaching backwards to beyond the base of the elytra, their 

 1st joint stout, 2nd short and moniliform, 4th thicker than 3rd and quite 

 as long. 



In A. sinuata (2524) a basal sinuosity near each side of the thorax 

 causes the posterior angles to appear as if they were directed backwards; 

 this is not the case in the present species, which, moreover, has more 

 finely sculptured elytra, differently coloured antennae, and larger eyes. 



Length, 5| mm. ; breadth, 2 J mm. 



Kaitoke, near Wellington. I am indebted to Mr. A. O'Connor for a 

 pair of specimens. 



3245. Mesocyphon mandibularis sp. nov. Mesocyphon Sharp, Man. N.Z. 



Coleopt., p. 316. 



Robust, subdepressecl, moderately nitid, unevenly clad with distinct 

 yellowish pubescence; rufescent, the elytra with irregular fuscous and 

 testaceous marks. 



Head densely and distinctly but not coarsely punctured. Eyes pro- 

 minent. Mandibles elongate, more than half of their whole length ex- 

 posed. Antennae elongate, rather stout, their 3rd joint almost as long 

 and thick as the 4th; 5-10 about equal, their length about double the 

 breadth, each narrowed towards the base; 11th oviform; they bear fine 

 pubescence. Thorax a third broader than long, its apex slightly bisinuate, 

 anterior angles rectangular and only a little deflexed ; its sides nearly 

 straight and distinctly margined, with nearly rectangular basal angles; 

 its sculpture is like that of the head, but on a spot at each side of the 

 interrupted median impression the punctures are more distant. Scutel- 

 lum large, thickly pubescent. Elytra evidently wider than thorax at the 

 base, gradually expanded backwards; on each, alongside the suture, there 

 is a shallow basal impression which is curved outwards and becomes 

 broader near the middle; there is also an indefinite discoidal costa; their 

 punctation is rather finer than that of the head. 



There is no perceptible curtailment of the anterior portion of the 

 head; the unusual exposition of the mandibles is caused by their length. 

 It is rather larger than M. divergens (575), with a broader head, and 

 impressed thorax and elytra. 



Length, 7£ mm. ; breadth, 3J mm. 



Mount Alpha, Tararua Range. Several specimens found under a 

 stone, at a height of 4,800 ft., by Mr. H. Simmon ds, who presented me 

 with a pair. 



3246. Cyphon pachymerus sp. nov. Cyphon Payk, Man. N.Z. Coleopt., 



p. 318. 



Subopaque, broadly oval, slightly convex; elytra densely clothed with 

 inconspicuous, slender, cinereous pubescence; body smoky black, legs and 

 basal two joints of antennae fuscous. 



Head short and broad, very minutely granulate. Antennae with the 

 3rd joint very small, yet rather longer than broad, 4th evidently larger 

 than the following ones. Thorax strongly transverse, its sides but little 

 rounded, their margins much finer than the basal, with subrectangular 

 angles, the anterior somewhat deflexed, its sculpture like that of the head. 

 Scutellum large. Elytra ample, without depressions, closely and finely 

 punctured. 



