24 Mr. F. P. Pascoe's Descriptions of New Genera 



Slenoderus labiatus. 



S. ater, capite (^Ironte occipiteque exceptis) elytris (nisi suturo) 

 aurantiacis ; pedibus fuscis. 



Australia. 



Black ; head (except the crown and part between the antennse) 

 and elytra orange red, the latter having a broad patch of violet on 

 nearly the whole length of the suture; legs brown. 



Length 7 lines. 



All the species o? Stenoderus are homogeneous, except S.gram- 

 micus, deustus and rectus of Mr. Newman ; these are so different, 

 yet so closely allied to each other, that their separation as a distinct 

 group is advisable. I propose for it, therefore, the name of 

 Syllitus ; technically it may be at once distinguished from Sleno- 

 derus by its large oblong entire eyes. 



Tritocosmia rubea, 



T. sub-miniata ; capite prothoraceque rubro-brunneis ; anten- 



narum fasciculo nigro. 

 Nova Cambria Australis. 



Rather a dull red, inclining to orange, the head and prothorax 

 reddish brown, slightly shining and minutely corrugated ; eyes 

 and tips of the mandibles dark brown ; brush of the antennae 

 black ; under surface with a silvery pubescence. 



Length 8 lines. 



Callichroma trogoninum. 



C. nigro-chalybeatum ; prothoracebi-impresso ; fronte, protho- 

 race lateribus elytrisque vitta longitudinali, viridi-aurulentis ; 

 antennis pcdibusque chalybeatis ; corpore subtus argenteo- 

 sericante. 



Ceylon. 



Chalybeate black ; front, sides of the prothorax (which in the 

 male has two slightly impressed marks), and a broad longitudinal 

 stripe on each elytra, golden green ; epistome testaceous ; an- 

 tennae and legs deep steel blue ; under surface with a silken 

 silvery pubescence. 



Length 12 lines. 



Callichroma Thomsoni. 



C. attenuata, aureo-viridis ; prothorace maculd oblonga me- 

 diana et vittis duabus elytrorum — una suturali alterd mar- 



