TAPIIROCOMISTER SINGULARIS. 187 



others , all are impuuctate ; the interstices are raised , cos- 

 tiform , equal (the l^t excepted) , a little narrower than 

 the furrows. 



Legs moderate and robust, tibiae short, the anterior 

 ones unarmed. Body beneath brown-red, shining; head 

 and basal portion of the rostrum furrowed in the middle; 

 the intercoxal process of the prosternum is raised , nar- 

 row ; the metasteruum is furrowed in the middle , the 

 two basal abdominal segments are convex , with the sutu- 

 ral line visible, the apical segment has two foveolae at 

 the sides towards the tip. 



Arceorrhinus Senna. 

 Bull. Soc. Entom. Ital. XXV, III, p. 325, 1893 (emend.), 



A. longirostris^ n. sp. 



Rufo-brunneus , sat nitidus, rostro pedibusque dilutio- 

 ribus , capite brevissimo , transverso , basi in medio leviter 

 emarginato , angulis posticis subacuminatis , supra con- 

 vexo , impuuctato ; rostri parte basali brevi , parce longiore 

 quam capite , subconica , ad antennas vix ampliata et supra 

 canaliculata , parte apicali valde elougata, gracillima, fili- 

 formi , recurva , apice leviter latiore ; antennis clavatis , ar- 

 ticulis mediauis subobconicis , 3° longiore quam sequenti- 

 bus, 9° et 10° subcylindricis , apicali quam precedente 

 latiore , ovato-conico ; prothorace oblongo , antice angus- 

 tiore quam postice , supra basi leviter canaliculato ; elytris 

 declivitati apicali distiucte attenuatis, apici rotundato-mar- 

 ginatis , supra regione suturali depressiuscula , lateribus 

 convexis; sulcatis, sulcis impunctatis, interstitiis carinatis, 

 leviter undulatis. 



Long. 5^/2 mill. 



Hah. Sumatra orient. (Serdang). — A single specimen 

 collected by Mr. J. A. N. Schagen van Leeuwen. 



This species is allied to A. exportatus Senna but di- 

 stinguished by the rostrum which is more elongate and 

 less curved , by the furrow between the antennae which 



Notes froin tlie Leyden JMuseum, Vol. X.VI. 



