

OF NEW ZEALAND. 127 



almost smooth, and impunctate. Thorax convex, not nearly so wide as 

 the elytra, a good deal narrowed anteriorly, and somewhat sinuously 

 narrowed behind ; its surface is perfectly smooth and impunctate. 

 Elytra large, convex, much longer than thorax, narrowed near the base, 

 the apex is truncate, but behind, on each elytron, there is a piceous 

 curved line which might be mistaken for the true apex ; each has a fine 

 sutural stria, and the shoulders are slightly elevated, but there is no 

 other visible sculpture. The hind-body is comparatively small, deflexed, 

 and clothed with distinct but very short hairs. 



The antennae, are longer than head and thorax, eleven-jointed, the 

 first eight rather slender, the three apical enormously developed ; the 

 basal joint is longer and stouter than the second, the third and fourth 

 about equal, fifth distinctly larger than the contiguous ones, sixth and 

 eighth small, ninth transverse, very much larger than eighth, tenth very 

 large, transversal, strongly produced outwardly, so that it is broader 

 than the head, eleventh large, rounded and pointed, about half as broad 

 as the tenth. 



Length, f line. 



I found two male examples of this species at Tairua ; it can be at 

 once identified by the strongly transverse, enormously developed, tenth 

 antennal joint, quite unlike the form of any other New Zealand species 

 known to me. 



233. B. piciceps, n.s. This species somewhat resembles B. 

 micans, but the hind-body and elytra, conjointly, form a convex oval 

 figure, and the structure of the antennae differs materially. 



The head is moderately large and smooth, shining reddish black in 

 colour, with two small foveae on the vertex, and joined to the thorax 

 by means of a distinct neck. Thorax convex, a little dilated laterally 

 near the middle, rather longer than broad, unimpressed. Elytra con- 

 vex, much broader and nearly two times longer than thorax, regularly 

 rounded laterally, with a sutural stria on each, but not otherwise im- 

 pressed. Hind-body deflexed. Antenna about as long as head and 

 thorax, eleven-jointed, joints two to eight nearly equal, the fifth slightly 

 longer than fourth ; ninth larger than eighth, transverse ; tenth larger 

 than ninth, also transverse ; eleventh large, rounded. 



The body is shining, almost destitute of pubescence, the head darker 

 in colour than the thorax and elytra, which are pitchy-red, the legs are 

 of a somewhat infuscate red, and the antennae are piceous. 



I have a second specimen, in which the neck is invisible, but it is 

 otherwise exactly similar to the insect I selected as the type of the 

 species, and I include both forms under the above name. 



Length, f line. 



I found my two specimens at Tairua. 



234. B. dispar. Sharp; Trans. Entom. Soc., 1874, /. 498. 

 Piceo-rufa, nitida, setis elongatis tenuissimis parcius vestita; vertice 

 bifoveolato, fronte depressa ; prothorace simplice, latitudine haud longi- 

 ore ; elytris stria suturali distincta, discoidali nulla. 



