16 Mr. H. W. Bates on the Longicorn Coleoptera 



suture, connected with a lighter streak on the disk, and, lastly, 

 a distinct arcuated yellowish line on each side near the apex j 

 the suture near the base and apex is also bordered with yellowish 

 ashy Body beneath hoary white, breast and base of abdomen 

 on each side with dark oblique stripes: abdomen sometimes 

 reddish. Legs reddish ; apical halves of tibiae and tarsi black ; 

 basal joints of tarsi ashy. 



d Terminal abdominal segment with dorsal and ventral plates 



rather deeply notched. 



? Ovipositor greatly elongated and exserted beyond its sheath, 

 apical dorsal plate pointed, ventral deeply and narrowly cleft. 



This pretty species, which differs from T. fiyuratus by the 

 more tapering shape of its elytra, and by the markings on the 

 surface of the wing-cases, was met with at various places on the 

 southern side of the Lower Amazons, and on the banks of the 

 Tapajos, but never in abundance. 



3. Toronaus perforator, n. sp. 

 T. oblongus, convexiusculus, fuscus, nigro fulvo canoque variegatus : 



elytris apice cinereo marginatis et fasciatis ; foeminse stylo eloiiga- 



tissimo. Long. 3^5^ lin. c? ? . 



Head velvety black, cheeks ashy, vertex with a short yellow 

 line. Antennae slender, more than twice the length of the body 

 in both sexes, reddish testaceous, all the joints except the first 

 and second with a pale ring at their bases. Thorax very little 

 broader than the head, the sides in the middle with a slight 

 protuberance, surface dark brown, with blackish spots on the 

 disk and fulvous spots on the sides, a curved ashy streak below 

 the lateral protuberance. Scutellum black. Elytra oblong, not 

 narrowed until near the apex, at which point they are suddenly 

 narrowed to the tip, which is obliquely truncated; surface 

 thickly punctured, except near the apex, dark purplish brown, 

 sides with greyish marks, and disk spotted with black, some- 

 times varied also with obscure greyish and fulvous streaks and 

 spots, a more distinct but short oblique pale line existing, in all 

 examples, on each elytron a little before the middle near the 

 suture ; the apical margin, both sutural and external, has a neat 

 ashy border, which, being joined to a prseapical fascia of the same 

 hue, encloses a transverse blackish spot. Body beneath clothed 

 with silky grey pile. Legs more or less reddish, with ashy and 

 black rings. 



S Terminal abdominal segment with dorsal plate semicircu- 

 larly notched at the tip, ventral with a shallower notch. 



2 Ovipositor greatly elongated, the sheath extending more 

 than two lines beyond the tips of the elytra ; dorsal plate finely 

 pointed, ventral cleft at the tip. 



