of the Group Cerambycinse. 29 



single transverse groove in addition to the postoeular con- 

 striction. 



The species somewhat resembles P. serious, but may be 

 easily distinguished by the characters given. 



PacJiydissus intermedins, sp. n. 



P. serico verisimilis, sed differt prothorace latcraliter in medio obtu- 

 sius tnberculato, et antennis corporo sesqui-longioribus, articulis 

 tertio quartoque apice minus fortiter nodosis, articulis tertio 

 quin toque plus elongatis. J . 



Long. 27, lat. 7^ mm. 



Hah. South Australia (Bakewell) . 



Without the distinct difference in the antennas this species 

 might well be placed with serious. The antennas are, how- 

 ever, much longer (surpassing the elytra by about the last 

 three joints) ; the third joint is about half as long again as 

 the fourth, and both these joints are only slightly nodose at 

 the apex. The prothorax is more obtusely tubercled at the 

 sides. 



Pachydissus jyarvicollis, sp. n. 



Badius, pube aureo-flava sericea leviter obtectus ; prothorace antice 

 posticeque gradatim angustato, medio utrinque obtuse angulato, 

 supra irregulariter et minus fortiter plicato ; elytris elongatis, 

 leviter sericeo-pubescentibus ; apicibus truncatis, sutura spinosis ; 

 antennis ( c? ) corpore duplo fere longioribus, articulo tertio quam 

 primo multo longiore, ( $> ) corpore brcvioribus. 



Long. ( d ) 32, lat. 8| mm. 



Hah. N. India. 



Prothorax somewhat obtusely dilated or angulated at the 

 middle of each side, and from thence gradually narrowed to 

 the base and apex, irregularly and not very strongly wrinkled 

 above. Elytra rather long, gradually and slightly narrowed 

 posteriorly for about four fifths of their length, and then more 

 quickly narrowed towards the apex, where they are truncate, 

 with a short spine at the suture on each side ; with a not 

 very dense yellowish-tawny silky pubescence, which veils a 

 reddish-brown derm, the pubescence giving faint wavy 

 reflexions in certain lights. Antenna?, in the male not quite 

 twice as long as the body, with the third and fifth joints sub- 

 equal, each much longer than the first or fourth, and with the 

 third and fourth and some of the succeeding joints slightly 

 nodose at the apex. Antennas in the female a little shorter 

 than the body. 



