and Species of Coleoptera. 17 



species here described has the peculiarity of being rather 

 broader than long, and is allied to Artacfes, but it has not, as 

 in that genus, the anterior tarsi dilated, a narrow mesosternum, 

 nor the process between the posterior coxse triangular. Hemi- 

 cyclus has the anterior coxge transverse, a character of only 

 generic importance in this group. 



Pimplema ampUata. 



P. latissima, valde convexa, nigra, nitida, infra picea; pedibus tes- 

 taceis. Long. 2 lin. 



Hob. Penang. 



Very broad and very convex, glossy black ; head minutely 

 punctured, scarcely produced beyond the edge of the pro- 

 thorax ; antennae pitchy, slightly hairy, third joint longest ; 

 prothorax nearly twice as broad as long, impunctate, strongly 

 incurved anteriorly ; scutellura broadly triangular ; elytra 

 finely punctured in rows widely apart ; body beneath pitchy, 

 sparsely punctured ; legs testaceous, hairy. 



Ghariotheca violacea. 



C. sat hreviter ovalis, violacea vel cyaiiea, nitida ; antennis, scu- 

 tello, corpore infra pedibusque nitide nigro-fuscis. Long. 3 lin. 



Hab. Dorey. 



Eather short, ovate, violet or bluish, shining ; antennee, 

 scutellum, body beneath, and legs dark or blackish brown; 

 antennee with the seventh to the tenth joints transverse ; head 

 and prothorax with minute scattered punctures ; scutellura 

 transversely triangular ; elytra seriate-punctate, punctures 

 small, distant, the rows widely apart ; prosternum coarsely, 

 abdomen finely punctured ; metasternum, except anteriorly, 

 impunctate. 



A smaller and shorter species than any of its congeners, 

 and almost uniformly coloured above. G. amaroides, from 

 Lizard Island, from its short metasternum can hardly be 

 retained in this genus. 



Baesenis. 



Caput parvum, colic angusto protensum. Oculi supra contigui, infra 

 conjuncti. Antennce flabellatse, articulo ultimo longiore. Palpi 

 maxiUares securiform es. Prothorax cylindrieus. Elytra ovata. 

 Pedes mediocres ; tihice. lineares ; tarsi articulo penultimo sub- 

 bilobo, postici et intermedii articulo basali elongato ; unguiculi 

 simplices. Prosternum inter coxas elevatum. Goxce anticse et 

 intermedise subglobosse. 



Ann. & Mag. N. Hist. Ser. 5. Vol. xx. 2 



