442 MR. p. p. PASCOE ON THE CtJRCULIONIDJE. 



thorax duplo longiora, supra oblongo-quadrata, postice declivia. 

 JPedes breviusculi ; femora leviter incrassata ; tibUe rect36 ; tarsi 

 baud dilatati, crassiusculi, art. penultirao vix lobato, ultimo 

 elongato ; unguiculi liberi. Metasternum sat elongatum. Ab- 

 domen segmeutis duobus basalibus arapliatis; sutura prima 

 arcuata. 



I am inclined to think tliat this genus and two other genera of 

 mine {Ethemaia and Methypora) will form a distinct subfamily, 

 which may be placed near the Aterpinse; but a further knowledge 

 of the Australian Curculionid£0 may possibly modify this view. 

 They are three puzzling forms, and this to a certain extent is in- 

 termediate, at least it has led me to suspect an affinity between 

 the two genera, Medicasta being obviously related to JEthemaia, 

 and having at the same time a diecii^eA. prima facie appearance of 

 belonging to a group of which Methypora is a member, Mr. Du 

 Boulay had a single specimen in liis collection, which ho has 

 kindly presented to me. It came in to lamp-light. 



Medicasta LEucuRAr (PI. XVII. fig. II.) M. supra fusco-nigra, infra 

 et parte declivi elytrorum albo-squamulosa ; rostro rugoso-squamoso, 

 toto albo, ore nigro exceptor capite supra nigro, impresso-punctato, 

 inarginibus orbitorum 4-5-dentatis ; prothorace latitudine longiore, 

 rude punctate ; scutello minute, oblongo ; elytris iuEequalibus, sub- 

 seriatim punctatis, singulo tricostatis, costis tuberculis conicis in- 

 structis, scilicet prima tribus, secunda quatuor, externa uno, humero 

 sito ; infra pedibusque oranino albo-squamosulis, tibiis in medio 

 fusco-annulatis. Long. 2 lin. 



Hab. West Australia (Champion Bay). 



Metrioxena. 

 (Oxycoryninse.) 



Caput transversum. Bostrum quam caput quadruplo longius, 

 rectum, cylindricum, apice dilatatum ; scrobes nullae. Oculi 

 prominuli. Antennce 12-articulatge, basi rostri insertse ; art. 

 1-0 gradatim brevioribus, 7-9 subffiqualibus, obconicis ; clava 

 obconica, art. prime magno, duobus terminalibus brevissimis. 

 JProtJiorax subrotundatus, paulo convexus, marginibus crenato- 

 serratus, antice truncatus, postice late lobatus. Scutellum 

 parvum, quadratum. Elytra modice convexa, parallela, postice 

 rotundata. Pedes validi ; femora in medio incrassata ; tibice 

 robustae, compressaj, intermedia^ et posticaj arcuatae ; tarsi latis- 



