I 94 COLEOPTERA 



prothorace sub-quadrato, basin versus angustato, elytris fere duplo angus- 

 tiore, inaequali ; elytris rugosis. 



Long, corp., 2-2 mm. 



Antenna reddish ; joints three to nine slender, tenth abruptly larger, 

 strongly transverse ; eleventh large, quite as broad as the tenth. Head 

 rather short, rather strongly constricted behind to form the neck, rugose. 

 Thorax small, widest at the front angles, gradually narrowed towards 

 the base, the front angles acute ; the surface rugose, and occupied by 

 several ill-defined large impressions. Elytra uneven, their sculpture 

 coarse but indistinct, and their pubescence or setae variegated, its most 

 conspicuous parts being some small, white, slightly elevated tubercles. 

 Legs reddish ; underside nearly black. 



OBS. The facies of this little species is very different from the other 

 species of the genus I know, owing, I think, chiefly to the form of the 

 thorax; but the general points of structure seem to be those of the 

 genus to which I have assigned the species. 



The European Xylolcemus fasciculatits is, I judge, according to Duval, 

 similar in appearance to this species ; and though B. rugosa does not 

 possess the peculiarly slender basal antennal joints of Xylolczmus, yet 

 it is probable that it may be ultimately considered to be as much allied 

 to Xylolcemus as to Bitoma crenata. 



Tairua (Captain Broun). 



347. B. nana, Sharp; Ann. Mag. Nat. Hist., July, 1876. B. 

 fusco-testacea, supra testacea, elytris (praesertim in lateribus) fusco-macu- 



latis ; prothorace basin versus angustato, lateribus serratis ; elytris aequa- 

 liter scabrosis. 



Long, corp., if mm. 



AntenncB with joints three to nine small, tenth and eleventh large. 

 Head short, yellowish, quite rough and dull. Thorax much narrower 

 than the elytra, a good deal narrowed towards the base, the sides 

 coarsely serrate, the front angles not acute ; it is yellowish in colour, 

 rough and dull, and with very indistinct large impressions. Elytra 

 yellowish, with some indistinct dark marks on the middle, and a large 

 one covering most of the side ; their sculpture is very indefinite, but 

 consists apparently of regular rows of coarse punctures, the interstices 

 between which are narrow and interrupted ; and they are hispid with 

 short erect setae. The legs are yellowish, short and stout ; the femora 

 somewhat infuscate. 



This minute species in size and form much suggests a Latridius. It 

 appears, however, to be closely allied to B. rugosa, but is very readily 

 distinguished by the pale colour and the more ragged sides of the 

 thorax. 



A single specimen, sent from Tairua, by Captain Broun. 



348. B. distincta, n.s. Body oblong, comparatively broad, 

 transversely convex ; colour obscure black, pubescence variegated. 

 Antennce piceous, except the two basal joints, which are red and rather 

 stout ; ninth a little larger than eighth ; tenth abruptly larger than the 

 preceding, transverse ; eleventh large. Maxillary palpi stout, piceous. 

 Head finely granulated. The prothorax is about as long as it is broad, 



