Longicorn Coleoptera from New Holland. cxi 



plates of minor size, proceeding obliquely downwards from the external base angle, 

 are also white, and show as a somewhat ill-defined irregular line. The plates on the 

 under side of the ray are quadrangular, widening on the side towards the extremity 

 of the ray, the two dilated corners or angles of which are rounded, producing an in- 

 termediate depression or arch, suggesting the appearance of a half-worn incisor tooth. 

 The prevailing colour of these plates is white, but their lateral edges are of a delicate 

 purple hue. A row of irregularly angular white plates connect the rays at their 

 origin and surround the centre of the avenues. 



Referring to Forbes's ' British Starfishes,' the Ophiocoma now figured and de- 

 scribed seems to come nearest to Ophiocoma bellis, from which, however, it differs in 

 having a circular disk; wedge-shaped scales at the insertion of each ray ; and appa- 

 rently a greater portion of the surface covered with scales, which are all, or nearly all, 

 of a circular form ; and in the absence also of a cordiform depression opposite the 

 origin of each ray. It appears, moreover, to differ in colour, which, however, may not 

 be a characteristic implicitly to be relied on. The colour of the disk is of a uniform 

 purple ; that of the rays is more of a variegated lilac. 



James Smith. 



Manse of Monquhitter, Aberdeenshire, 

 June 3, 1850. 



Art. XI. — Description of certain Longicorn Coleoptera from New Holland. 

 By Edward Newman. 



Family 



Genus — Hemesthoceba, Newman. 



Caput parvum, porrectum, oculis reniformibus, haud prominentibus, apud antennarum 

 insertionem excavatis ; antennis corf ore brevioribus, ll-articulatis, dimidio basali 

 lanugine vestitis, apicali nudis : prothorax conicus, antice x truncatus poslice utrin- 

 que dente instructus : elytra brevia basi prothorace latiora, apice rolundata, dente 

 prceapicali utrinque instructa : propedes et mesopedes mediocres, metapedes longiores, 

 femoribus omnibus extus tumidis. 



Hemesthocera flavilinea. 



Atra,puncta, scutello lanuginoso aureo ; elytris bicarinatis, carina suturaliflava, costali 

 atrA apice flavA. (Corp. long. 6 unc. Elytrorum lat. max. -225 unc.) 



The head is small in proportion to the size of the insect and porrected, its sides 

 are nearly parallel, the eyes being so slightly prominent as scarcely to cause any excess 

 in breadth, neither is there any material restriction behind the eyes ; the epicranium 

 is punctate ; the eyes are reniform, the antenna? being placed in advance of their an- 

 terior excavation ; the excavation itself is filled with a silvery pile, while all other parts 



