of new Exotic Longicorn Beetles. 627 



extremity. Each of the elytra in both sexes is armed with a 

 large erect tubercle at its base between the scutellum and shoulders. 

 Across the middle of the elytra runs a very slender white line in a 

 slightly slanting direction ; the minute white dots also coalesce 

 towards the extremity of the elytra to form another somewhat 

 arched white line ; the extremity of these organs is obliquely trun- 

 cate. The body beneath is black and shining, the raetasternum 

 very convex, with two diverging white lines, and the four basal 

 segments of the abdomen are marked on each side with a patch of 

 white pile. The legs are dark grey, the tibias having the extremi- 

 ties broadly black. 



Sp. 2. Zygocera metallica, Westw. (Plate XXV, fig. 7.) 



Nigra, nitida ; ely tris purpureo-nitentibus, sutura virescente, faciei 

 lateribus albido tenuiter lineatis; prothorace utrinque spinoso, 

 discoque tuberculis duobus conicis elevatis ; elytris versus 

 basin rude punctatis et nigro-hirtis, singulis tuberculo elevato 

 prope scutellum armatis, apiceque subtruncatis. 



Long. Corp. lin. 7g ; lat. ad basin elytr. lin. 3^. 



Habitat in Australia meridionali. D. Angas, 



In Mus. Hopeiano Oxonise et D. Pascoe. 



The antennae are of moderate length, their underside (except in 

 the basal joint) is clothed with a few long black hairs; the third 

 joint is but little longer than the fourth. The tubercles on which 

 the antennae are fixed are elevated, much broader than the base of 

 the antennae, and closely approximating in the middle of the front 

 of the face. The head is small, the face widened towards the 

 mandibles, with two very slender parallel whitish lines extending 

 from the sides of the clypeus to the base of the antennae. Behind 

 the middle of the prothorax the sides are armed with two strong 

 diverging conical spines, obtuse at the tips, and in the transverse 

 line between them are two elevated tubercles on the disc, and two 

 others much more minute and close together in the middle. The 

 elytra are very glossy and of a fine purple tint, the suture elevated 

 and green ; the base of each is armed with a large elevated tubercle 

 close to the scutellum ; they are rudely punctured in the basal 

 portion, where they are also sparingly clothed with erect black 

 hairs. They are slightly truncated at the extremity. The body 

 beneath is glossy black, as is also the underside of the femora. 



Two specimens of this species were collected by Mr. Angas, 

 recently returned from South Australia. Both of these specimens 

 agree with the female of Z. pru'mosa in the comparative shortness 

 of the antennae, and in the want of the tuft of hair at the extremity 

 of the third joint, which is but little longer than the two preceding 



