1 Q2 COLEOPTERA 



in sculpture and colouration, but though they may prove to belong to a 

 distinct species, I, at present, consider them merely varieties. The 

 sculpture and colour are often obscured by an exudation of sappy- 

 matter. 



342. U. salebrosus, n.s. Body short, convex, piceous, clothed 

 with fine yellow setae, legs and antennae reddish. 



Antenna pubescent, their basal joint stout, second shorter but stout, 

 third not much longer than second, slender, joints four to seven 

 sub-equal, eighth a little broader than seventh, club large. 



The form of the prothorax is somewhat similar to that of the pre- 

 ceding species, the hind lobe, however, is narrow, not contiguous to the 

 anterior, and is placed at some distance from the base, leaving an evi- 

 dent gap between it and the elytra, and on the main part of the thorax 

 there is a very small lobe, or tooth, directed backwards and appearing to 

 form the hind angle ; the disc is much more elevated, with an irregularly 

 formed ridge on each side of the middle, and sub-depressed longitu- 

 dinally between these. The elytra are short and convex, as wide as the 

 thorax, rough, with oblique shoulders, the sides are somewhat protuber- 

 ant in front, and on each there are two somewhat compressed basal 

 tubercles, and several smaller ones irregularly disposed over the surface, 

 the most conspicuous being two behind. 



The head, thorax, and the base and sides of the elytra are rather 

 densely covered with fine yellow setae, but there are no coarse, upright 

 setae, and the legs are similarly clothed. 



Length, if line ; breadth, i . 



I have two specimens which I found at Tairua. 



Bitoma. 



Herbst. = Ditoma, Illig. ; Lacord. Hist, des Ins. Coleop., Tom. ii.,/. 363. 



Mentum transversely quadrate. Ligula short, slightly hollowed in 

 front, ciliated at each side. Inner lobe of the jaws small, furnished at 

 the end with bent hairs ; the outer larger and wider, rounded at its 

 extremity, with this part ciliated. Last joint of the labial palpi twice as 

 large as the second, oval, and truncated at the end ; that of the maxil- 

 lary longer than the two preceding joints, and a little attenuated. Man- 

 dibles bifid. Labrum distinct. Head nearly quadrate, rounded at the 

 front angles ; epistome slightly sinuate. Antenna eleven-jointed, first 

 globular ; second of the same form, but smaller ; joints three to nine 

 gradually decrease ; tenth and eleventh forming a rather stout club. 

 Eyes rather large, slightly prominent. Prothorax quadrate, slightly 

 elongated, sub-parallel, emarginated in front, slightly rounded at its base, 

 the sides margined. Elytra elongate, parallel, depressed above. Legs 

 short, femora a little incrassated, tibia linear and terminating with two 

 small spurs ; the three first joints of the tarsi short, decreasing gradually. 

 All the abdominal segments hollowed on the hinder edge. Body elon- 

 gate and depressed. 



343. B. insularis, White; Voy.Er. Terr., Ins., p. 18. Head and 

 thorax deep brown, thorax on each side with parallel keels, and two 



