OXYRRIIYNCHUS CONVKXUS. 181 



NOTE XXII. 



SIX NEW SPECIES OF THE RHYNCHOPHOROUS 

 GENUS OXYRRHYNCHÜS, SCÏÏÖNH. ') 



DESCRIBED BY 



C. RITSEMA Cz. 



1 . O X yr rlt D II c li u ,<; <■ o v v e ,v ii fi , u. sp. Q. 



A large and robust species witliout markings. It is 

 easily recognized by its nearly globose thorax and propor- 

 tionally short and very convex elytra. 



Length from the anterior margin of the thorax to the 

 apex of the elytra 14 mm , width of the middle of the 

 elytra 6 mm. — The uppersiirface of the smooth and 

 shining narrowed portion of the rostrum is keeled at the 

 base and provided with a few longitudinal rows of shallow 

 punctures which however disappear beyond the middle ; the 

 dilated basal portion of the rostrum which is a little longer 

 than wide at its base is incrusted ^) and shows a few small 

 punctures and a longitudinally impressed line ; the rostrum 

 is separated from the forehead , which is similarly incrusted 



1) This generic name, which dates from the year 1820, ought to be chan- 

 ged, being preoecupied by Gesner (^Fishes: 1604), Teinmiiick (Birds: 1820) 

 and Sjiix (Heptiles: 1S24), whereas Hagenbach's M.S. name Octutoma has 

 been nsed in 1868 by Suffrlan in the Coleopterous family (^hrysomelidac. 



2) This ernst extends on the base of the narrowed portion in the shape of 

 two elongate triangles which are separated by the basal keel. 



Notes ffoni the Leyclen IMiiseiim, \'ol. I \'. 



