Ma. F, p. p,vgooE OS' tiie cubculionidjb. 443 



siini, arb. baaali miuufco, duobus 3eqaeiitibti3 fortiter bilobia, 

 ultimo modice elongate, basi nodifero ; unguiculis parvia. Goxee 

 baud approximatse. Metasternum modice elongatum. Gorpus 

 glabrum. 



The sole species constituting this genus has very much the habit 

 of an Apion, and is therefore quite different from that of Oxi/- 

 cori/nus ; novertholoss the differential characters, although nume- 

 rous, are less striking than might have been expected, the prin- 

 cipal being the peculiar form of the tarsi. The knot at the base 

 of the claw-joint representing an additional, but rudimentary, 

 joint is almost peculiar among Curculionidce to tliis subfamily, 

 and is only found again in DryopMhorus. Oxj/corynus, containing 

 four or five species only, is peculiar to South America, w^here one 

 of its members, lately described by me, is found frequenting a 

 species of Ilydnora ; the occurrence of a second genus of this 

 most trenchant subfamily in Macassar, one of the fruits of Mr. 

 Wallace's researches, is therefore highly interesting. 



Metrioxena serricollis. (PI. XVII. fig. 10.) M. fulvo-testacea, 

 elytris infuscatis, singulo plaga magna postica testacea ; capite opaco, 

 rostro nitido ; prothorace leviter punctato, quinque-carinato ; elytris 

 seriatim punctatis, basi singulo lineis duabus abbreviatis elevatis, 

 humeris prominulis ] corpore infra testaceo, parce pubescente j pedi- 

 bus fiilvo-testaceis, glabris ; oculis nigris ; antennis versus apicem in- 

 fuscatis. Long. \\ lin. 

 Hah. Macassar. 



AoNYcnus LINEATUS. A. ovatus, albo-squamosu9 ; rostro tcuui, 

 nigro, nitido, denudato, subtiliter punctulato ; prothorace subtrans- 

 verso, basi fortiter bisinuato ; scntello parvo, triangular! j elytris 

 punctato-striatis, interstitiis secundo quartoque a sutura griseis, 

 humeris tuberculato-productis ; infra pedibusque albis j antennis 

 gracilibus, fuscis, clava nigra. Long. 4 lin. 

 Hah. Western Australia (Champion Bay). 



A very distinct species, but in everything conformable to the 

 characters oi Aoiiychus, a genus remarkable for the absence of the 

 flaw-joint, and hitherto only containing the well-known ^. /i'o/7e», 

 Schon. Of the latter I have specimens of nearly a pure white, 

 two small irregular patches on the middle of the elytra being the 

 only vestige of the dark umber marbling which gives such an 

 elegant appearance to the normal form. 



Metatvges cupreus. M. cupreo-metallicus, nitidus, pilis miuu- 

 tissimis remotis obsitus ; capite rostroque punctulato, hoe in medio 

 longitudinaliter sulcato ; prothorace subtiliter punctato, pone medium 

 LINN. PItOC. — ZOOLOGY, TOL. X. • 30 



