50 Mr. C. J. Gahan on neio Sjwcies of Longicornia 



suturam laevioribus, subnitidis, sparsim punctulatis ; antennis 

 dimidhmi elytrorum excedentibus. 



$ . Pronoto in medio nitido, teuuissime et sparsissime punctulato, 

 versus larera valde et dense punctato ; antennis dimidium elytro- 

 rum nee attingentibus. 



Long. 60 mm. 



Of the same general form as R. mamllce, Newm., but much 

 larger, lighter in colour, with well-defined shining spaces on 

 the surface of the pronotum, of which two, trigonous in form, 

 are placed near the middle ; the third, shaped somewhat like a 

 bracket (thus t — * — <)? ls placed transversely at the base ; with 

 the elytra dull, owing to the extremely small and close granu- 

 lations, which cover all their surface except a space around 

 the scutellum and along the suture ; this space somewhat 

 glossy and sparsely punctulate. 



The female differs from the male not only by the different 

 punctuation of its pronotum and the length of its antennas, 

 but by the sparse punctulation of its prosternum and by the 

 metasternum exhibiting no marked limitation of a triangular 

 smooth space. The last segment of the abdomen in the female 

 is narrower and truncate at the apex ; in the male this seg- 

 ment is broader and rounded at the apex. 



The third specimen, a small male of about 48 millim. in 

 length, is much lighter in colour than the other two and has 

 fewer spines on the sides of the prothorax. 



Prinobius ceneipennis, Waterh. 



Prinobius ceneipennis, Waterh. {Macrotoma), Trans. Ent. Soc. 1881, 

 p. 428. 



This well-marked species was described by Mr. Water- 

 house from a single male specimen. Mr. Hampson has 

 captured a female, of which the characters compared with 

 the male are : — 



Size much greater (length 57 millim., width 18 millim.) ; 

 antennas smooth, sparsely punctured, not surpassing the middle 

 of the elytra ; pronotum nitid, sparsely and feebly punctured 

 on the middle of the disk, strongly though sparingly punc- 

 tured towards the sides, its lateral margins provided each 

 with a row of small spines, of which that at the posterior 

 angle is recurved and much longer than the rest ; prosternum 

 nitid, feebly and very sparsely punctured ; sides of breast 

 sparingly and feebly punctured and with a very sparse fulvous 

 pubescence ; legs less scabrous. 



The genus Prinobius, Muls., put as a synonym of Macro- 



