Coleopicra. 109 



57. Rhyncholobus rossi, Gahan, sp.u. (PL XI, Figs. 7, 8.) 



Niger, squamis viridibus (interduiu coerulesccntibus) dense 

 vestitus ; prothoracc supra granulis, uigris, nitidis, setigeris 

 instructo ; elytris punctato-striatis, intcrstitiis nigro-granulatis, 

 granulis setigeris ; sutura interdum fere omnino nigra ; articulo 

 3° funiculi quam 4° vix longiore ; tibiis posticis ad apicem sat late 

 truncatis. 



$. Rostro ad apicem late sat abrupteque dilatato (vel lobato) ; 

 elytris supra minus convexis ; inter discum latcraque anguste 

 convcxis ; femoribus crassioribus, tibiis intus denticulatis. 



9. llostro versus apicem gradatim leviterque dilatato; elytris 

 supra valde convexis. 



Long. 7-12, lat. 3-6 mm. 



Black ; closely covered with scales, which are mostly of a bright 

 green colour (sometimes bluish) mixed with a few of a golden or 

 coppery tint. On the sides of the thorax and elytra, as well as on 

 the legs and under-side of the body, the scales are often of a paler 

 and more silvery colour. The sette or hairs, which are present on 

 nearly all parts of the body, are somewhat longer and denser on the 

 legs and the posterior part of the elytra ; those on the prothorax 

 and elytra mostly arise from punctures situated each at the summit 

 or on the hinder face of a little black granule. Head and rostrum 

 together about equal in length to the pronotum. llostrum flattened 

 above, with a feeble carina along the middle, ending in front at 

 the apex of a triangular space, of which the base, forming part of 

 the anterior margin of the rostrirm, has a small angular notch 

 in the middle. Prothorax almost equal in length to its greatest 

 width, which lies a little in front of the middle ; distinctly narrower 

 at the apex than at the base ; disk with scattered and very slightly 

 raised, shining - black setigerous granules. Exposed part of the 

 scutellum triangular and very small. Elytra punctate-striate ; the 

 interstices in no wise costiform, furnished with feebly raised, shining- 

 black setigerous granules ; the punctures along the strice rather 

 deep and oblong, but those at the sides much smaller and less 

 conspicuous. (In a few examples, not otherwise distinct, the 

 punctui'es on the disk are narrower and less conspicuous, and 

 the setigerous granules a little more raised.) 



Scape of the antennae only just reaching to the anterior margin 

 of the prothorax ; second joint of the funiculus equal in length to 

 the third and fourth united, the third joint very little longer than 

 broad, and scarcely longer than the fourth joint. Posterior (or 

 inner) face of hind femora flat and smooth ; hind tibite rather 

 broadly truncated at the end. In the male there is a row of small 

 teeth along the lower margin of all the tibiii! ; in the female these 

 teeth are obsolete or wanting. 



