180 OXYRRHYXCHUS FABRICII. 



a lobe which is directed upwards and forwards and leaves 

 a deep cavity beneath it; the front margin of these lobes 

 is strongly indented. The longitudinal interstices are re- 

 gular and raised, the 2nd, 4th and Gth which are also 

 broader , are more distinctly raised , subcostiform ; the 

 transverse interstices are regular and rather broad , the pits 

 regularly arranged and more or less square. The apical 

 tubercles are very distinct. 



Hab. Amboyna (E. A. Forsten and D. S, Hoedt). — 

 Three male specimens. 



6. xy rrh y nch II s Fahririi, n. sp. cT and Q. 



Most closely allied to 0. diseors Fabr. and of the same 

 size , but proportionately narrower and easily distingui- 

 shed in the male sex by the crenate basal margin 

 of each elytron which is directed upwards and forwards 

 and leaves a cavity beneath it. Moreover the punctures 

 on the elytra are more elongate , deeper and not filled 

 with a pale colored crust. Besides with the mar- 

 kings of diseors , the elytra of the new species are pro- 

 vided with a rather broad and short white stripe at the 

 base external to the lateral stripe , with a narrow white 

 stripe along the suture, and with a rather broad white 

 stripe along the lateral margin of the apical half of the 

 elytra. This pattern it has in common with 0. Jr//dropicns 

 Chevrl. from the Andaman-islands, but in this species the 

 elytra are shorter and much more convex. 



Hab. Sumatra (Dr. S. Muller, Ludeking and Sumatra- 

 Expedition) and Borneo (Dr. Schwaner). — A few speci- 

 mens of both sexes. 



Leyden Museum, April 29th, 1882. 



Obs. Up to the iiresent time thirteen species of this genus have been 

 described , viz. : 



0. Sancii Andreae Rits. (in this Note) Java. 



, brevipennis Kits, (in this Note) Borneo. 



jVotes from the Leydeii Museum, A'ol. IV. 



