50 Cameron, Hyvunoptcra Orientalia. 



shiniiif^. Thorax thickly covered with stiff black hair ; 

 the pronotum broadly at the apex, and the lower side 

 of the mesopleurai in the middle, thickly covered with 

 silvery pubescence. Mesonotum strongly and deeply 

 punctured ; the furrows are deep ; between them is a keel 

 which is smooth and shining, and extends to near the 

 base. Scutellum rugosely punctured, its middle smooth, 

 bare and shining ; at its base is an oval fovea ; its apex 

 is slightly depressed ; the smooth part jjrojects over the 

 apex, which has a long, sharply oblique slope. The base 

 of the median segment is raised and has a perpen- 

 dicular slope, and is separated from the mesothorax by a 

 wide deep space ; the segment is opaque, coarsely aluta- 

 ceous, not reticulated, and is sparsely covered, particularly 

 at the sides, with long black hairs ; the central furrow is 

 depressed at the base, where it is furrowed in the middle ; 

 it reaches to the top of the slope, becoming gradually 

 narrower ; the keels are raised at its apex and arc there 

 smooth and shining ; the apex has an almost perpen- 

 dicular slope, and is rounded at the top. Propleur^ 

 rugose, the middle bearing stout strice, the apex smooth. 

 Mesopleurai broadly tuberculate at top and bottom, 

 opaque, alutaceous, and covered with black hairs ; the 

 upper half of the metapleur;e reticulated, the lower 

 smooth. Legs thickly covered with black hair ; the fore 

 calcaria pale. Abdomen ferruginous, the petiole and two- 

 thirds of the apical segment black ; the petiole strongly 

 punctured and covered with long black hair, as is also the 

 base of the second segment ; the apex of the second, and 

 the third to sixth segments, thickly covered with long 

 orange pubescence ; the black part of the last segment is 

 covered with black hairs; its middle is smooth and bare, 

 the apical half of the ventral keel projects as an oblique, 

 somewhat triangular tooth, rounded at the apex ; the 



