158 NORTHERN ZOOLOGY 



DESCRIPTION. 



Body minutely and thickly punctured; above black-bronzed obscure; underneath cupreous with 

 the gloss obscured; except near the anus, cloathed with numerous rather long decumbent hoary hairs. 

 Head somewhat cupreous, hoary from decumbent hairs; nose green, bilobed with divaricated lobes, 

 including a somewhat obtusangular sinus; antennas green; vertex channelled: prothorax embossed 

 in the disk, impressed and wrinkled at the sides ; depressed parts punctured and reflecting a faint 

 lustre of copper: scutellum an isosceles triangle, depressed and green at the base, elevated part black: 

 elytra embossed, with a ridge extending from the apex where it is broader, by the side of the suture 

 towards the base where it is abbreviated ; the depressed spaces have a faint lustre of copper and 

 bronze, and are thickly punctured ; apex rounded and obsolctely serrulated : shoulders incrassated 

 with a short robust tooth : all the tibia; are bent or bowed ; cubit not dilated at the extremity : hypo- 

 pygium with a deep sinus. 



This nearly resembles B. O. trinervia, but is sufficiently distinguished by having only a single 

 ridge on the elytra, and the posterior tibise as well as the other pairs, bowed : the prothorax also is 

 not channelled and its sides are rounded. 



xvii. * Subgenus Tkachypteius. Kirb. 



Labrum transverse, nearly oval. 



Palpi with the last joint cylindrical. ' 



Rhinarium indistinct. 



Nose with a rounded sinus. 



Antennm filiform, shorter than the thorax, subserrated, with the joints from the third to the end 



gradually decreasing in length. 

 Body above rough from numerous reticulations and granules. 

 Elytra diverging at the apex, and rounded. 

 Tarsi with minute suckers at the apex of the four first joints ; first joint of the posterior pair 



elongated. 

 Prostenmm linear. 



This subgenus differs from the preceding not only in the sinus of the nose forming a segment of 

 a circle, and the length of the first joint of the posterior tarsi, but also in having nearly filiform 

 antenna; very slightly serrated on their inner side, and with their joints, beginning with the third, 

 gradually decreasing in length. The type is Buprestis decastigma Fab. It may be subdivided 

 into two sections, one with the apex of the elytra serrulated, to which the type belongs, and the 

 other with it entire. 



