PACHYTERIA. 197 



before the middle, pale yellow ; the antennal joints dull ; the 

 elytral baud glossy, strongly and rather closely punctured, its 

 hind margin straight, and its front margin somewhat oblique 

 near the suture and sinuate towards the side, on each elytron. 

 Head impressed with a median line or groove which does not 

 extend on to the clypeus, but ends anteriorly at the transverse 

 line that separates the clypeus and front : clypeus rather sparsely 

 and some\\hat unevenly punctured, sometimes with a slightly 

 raised smooth median line ; front densely and minutely punctu- 

 late ; vertex somewhat coarsely punctate, especially around the 

 eyes. Prothorax \\ith a narrow smooth band along the middle, 

 the disc external to this band finely and rather densely punctate. 

 Elytra minutely and very densely punctulate on the dark parts, 

 and there also faintly covered with dark tonientum ; apex of each 

 distinctly eiuarginate, with the outer angle more promiuent than 

 the sutural one. Body beneath almost bare of pubescence, a faint 

 greyish pubescence only covers the sides of the hind breast. 

 Metasternum and abdomen sparsely punctate ; the femora more 

 densely but somewhat unevenly punctured. Antennae of male 

 about equal in length to the body ; those of the female not 

 much shorter ; first joint densely punctured. 



Length 25-29 mm. 



Hah. Assam. 



215. Pachyteria chrysogaster, Ritsema (Callichroma), JS'otes Leyd 

 Mus. X, p. 195 (18^8) ; id. idem, xi, pi. 10, fig. 4 (1889). 



Dark blue, sometimes almost black, tinged in places with green 

 or violet ; antennre and legs ferruginous red ; abdomen testaceous, 

 with the frout half of the first segment, and frequently a trans- 

 verse band at the front border of each of the next three segments, 

 blue or violet, and, like the meso- and metasternum, pronotum, 

 scutellum and elytra, covered with short black pubescence ; the 

 whole of the underside covered with short golden coloured 

 pubescence. Head almost entirely glabrous ; densely punctate 

 and somewhat rugulose in front, more coarsely punctured on the 

 vertex ; mandibles less elongate than is usual in the genus. 

 Antennae almost equal in length to the body in the S , shorter in 

 the $ ; first joint .sharply angulate but not dentate at the apex. 

 Prothorax slightly longer than its width across the base, acutely 

 tuberculate at the middle of each side, very densely punctulate 

 and opaque above, with a smooth line, impressed in its anterior 

 half, along the middle of the disc. Scutellum triangular, pubes- 

 cent, with a smooth line along the middle. Elytra gradually 

 narrowed backwards, but «ith the sides slightly sinuate instead 

 of straight, separately rounded at the apex ; the surface opaque 

 owing to the dense puncturation and pubescence, except at the 

 sutural edge and along one or two feebly raised lines on the disc 

 of each. Body beneath almost impunctate. Front and middle 

 femora rather strongly, and the hind femora more finely. 



