OF NEW ZEALAND. 183 



middle ; the third behind ; hind angle obsolete ; the disc .bears three 

 tubercles on each side of the dorsal line ; the rest of the surface is 

 uneven and finely granulated. The elytra are somewhat obliquely 

 emarginate at their base, with distinct shoulders ; they are moderately 

 convex transversely, the sides a little compressed, their margins dilated, 

 and coarsely serrate, apices divaricate and pointed ; each elytron bears 

 a large basal laterally-compressed tubercle near the suture ; an oblique, 

 tubercular costa near the middle, a considerably elevated laterally-com- 

 pressed tubercle behind, and other less obvious elevations ; there are 

 several rows of punctures, and near the margin a longitudinal black line 

 with a row of pale spots of pubescence. Legs infuscate-red and setose. 



Length, iJ-2 lines. 



This is a tolerably, common species, and was, I believe, first sent 

 home by Mr. T. Lawson of Auckland. The above description is from 

 specimens in my own collection, and agrees with Mr. Pascoe's diagnosis 

 of his Ectomida lacerata, which he located with the Heteromera ; but, as 

 Mr. Wollaston's description was published first, his name must stand. 



325. T. acuminatUS, n.s. Oblong, transversely convex. The 

 head is laterally dilated in front of the eyes, so as to conceal the basal 

 half of the first joint of the antennae when examined from above, and 

 the surface is finely tubercular. The prothorax is cordiform, the disc 

 considerably elevated in the form of two tuberculated ridges, which are 

 porrected, and partially cover the head ; the sides are explanated and 

 trilobed ; the anterior lobe is the largest, and the posterior angle is 

 formed by a small tubercle. The elytra are elongate, wider than the 

 thorax behind the shoulders, which are oblique, the sides are nearly 

 parallel to , the middle, and from thence considerably narrowed, with 

 produced, divaricate apices, and the base is rather deeply emarginate ; 

 the side margins as far as the middle are deeply serrated, afterwards 

 entire, but bearing three equidistant tubercles ; the sculpture consists, 

 on each, of two oblique tubercular costse near the middle, a large, 

 laterally-compressed, superficially-curved, tubercular elevation behind, 

 and many small nodules, which are irregularly disposed over the surface; 

 and there is an indistinctly elevated sutural line, which is intersected by 

 transverse punctures. 



The antenna and tarsi are ferruginous, the body and legs fuscous, 

 but the ground-colour is almost concealed by an exudation, and minute 

 griseous scales and pubescence. 



Length, nearly 2 lines. 



Of this remarkable species, I have only the single specimen which 

 I found at Tairua ; it is somewhat aberrant, and might, owing to the 

 structure of the tarsi, be more correctly called a Ulonotus. 



Ablabus. 



Nov. gen. 



This genus is formed for the reception of species which are interme- 

 diate in form between Endophloeus and Ulonotus; from the latter it 



