NEW APETCATT CITRCULIONID^. 325 



In colour and sculpture very distinct from C. melanclioUcus. 

 The intermixture of differently coloured scales — the grey predo- 

 minating — makes tlie coloration somewhat indefinite. 



Stiamus. 



Rostrum bi-eve, capite baud abscissum ; scrobes infra oculos currentes. 

 Antennae graciles ; scapus pone oculum baud productus ; funiculus tenu- 

 atus ; clava distincta. Protborax subtransversus, basi apiceque truncatus. 

 Elytra protborace basi paulo latiora, bumeris productis. Femora incras- 

 sata, subtus dente minute armata ; tibiae anticse intus denticulatae ; tarsi 

 articulo penultimo late bilobo ; unguiculi basi connati. Abdomen seg- 

 mentis duobus basalibus ampliatis. 



This genus may be placed near Brachyderes, but without any 

 salient character absolutely differentiating it from the other 

 genera of the group to which it belongs, nearly all of which are 

 destitute of any tangible characters ; those giyen by Lacordaire 

 being generally of very little more than specific value. 



Stiamtjs beachturus. (Plate XLI. fig. 6.) 



S. obovatus, niger nitidus ; elytris postice latioribus, apice singulorum 

 producto. Long. 4| lin. 



Hah. Mayotte. 



Obovate, black, shining, with very small white setae, and scat- 

 tered minute scales ; rostrum slightly concave in front ; antennae 

 pitchy; first two joints of the funicle equal, the remainder 

 shorter and subequal, and gradually pilose to and including the 

 club ; prothorax rounded and punctured ; elytra slightly convex, 

 gradually broader behind, then rounded to the apex, which is 

 narrowly but shortly produced at the suture, seriate-punctate, 

 punctures coarse and subremote, the intervals slightly corrugated ; 

 body beneath and legs with a few white setae. 



ECTITHEIS. 



Caput antiee rotundatum ; rostrum robustum, apice utrinque elevatum ; 

 oculi rotundati, promiuuli, grosse granulati. Antennae modice elongatse. 

 Protborax planatus, ad latera dilatatus, postice elevatus. Scutellum 

 nullum. Elytra oblongo-ovata, protborace basi latiora. Pedes mediocres, 

 corbellis tibiarum apertis ; tarsi articulo primo late triangulari ; unguiculi 

 approximati. 



The flattened disk of the prothorax somewhat shortened and 

 truncated behind, leaving an evident space above its junction with 

 the metathorax between the disk and the elytra — is a peculiarity 

 which at once distinguishes this genus; iu some respects it 



