Mr. J. S. Baly on the Phvtophaga. 299 



duoto, ultiinis duobus gracilibus, illo basi flexuoso, hoe eurvalo; Uibro 

 transverso, antice emargiuato ; numdibidis apice deiitatis ; pa/pis ma.viUa- 

 rihtis articulo prinio parvo, duoruni sequentium utroque a basi ad apicoin 

 ampliato, illo paullo elongato, hoc dilatato, ultimo conico, subacuto ; 

 mento transverso-quadrato ; ondis magnis, rotimdatis, prominentibus. 

 Thorax ti-ansversus, dorso bi-impressus. ScuteUion trigonatum. Elytra 

 thorace latiora, parallela, dorso subconvexa. Pedes gTacile-s et (prce- 

 sertim postioi ) elougati ; coxis anticis contigiiis, intermedu's magiiis, fere 

 contiguis ; tarsis tibiarum apici insertis ; loiguicidis appeudiculatis. 

 Type, Xenarthra cervicornis, Baly. 



This genus can be at once separated from congeneric forms by the 

 remarkable 12-jointed antennae, the joints themselves presenting 

 such strange contortions that it is almost impossible to describe 

 them. I must therefore refer to the figure in Plate XII. for a more 

 correct idea of their form. 



Xenarthra cervicornis. (Plate XII. fig. 4.) 



A', elongata, sat angustata, pallide Hava, nitida ; aiitennis difTormibua, 

 nigris; capitis thoracisque lateribus,metasterno, abdomiue (baseoa medio 

 excepto) tibiisque posticis (his basi exceptis) piceis; elytris obsolete 

 costatis, fortiter subcrebre punctatis, viridi-feneis. — Long. 3 lin. 



Ifab. Ceylon. 



Head strongly exserted ; eyes prominent ; face above the antennae 

 furnished with a triangidar ele^■ated space, divided longitudinally by a 

 medial gi'oove, the apex of which terminates in a deep fovea ; antennas 

 rather longer than the body, 12-joiuted, the twelfth articulation being 

 formed, by the separation of the false joint visible in neai-ly all Phy- 

 tophagous insects at the apex of the antennae, into a distinct piece. 

 Thorax one-third broader than long, narrowly margined, sides nearly 

 parallel, slightly produced and angled in the middle ; upper surface 

 slightly convex, smooth, impunctate, impressed behind the middle 

 with two large and deep parallel foveae. Scutellum trigonate, its apex 

 acute. El}i:ra rather broader than the thorax, parallel, moderately con- 

 vex, deeply pimctm-ed, each elytron with five or six indistinct longi- 

 tudinal costae. Legs slender ; tarsi stained with fuscous. 



Genus Stenoplatys. 



Corpus subelongatum. Caput exsertimi ; antennis gi-acillimis, filifonnibus, 

 coi*pore longioribus, articulo prinio curvato, a basi ad apicem leuiter in- 

 orassato, secundo brevi, tertio quarto vixlongiore, maris articidis ultiniis 

 tribus compressis, paullo dilatatis, clavam august am acutani fonnan- 

 tibus; epistomate brevi, transverse, utrinque abbre%-iato; lahro trans- 

 verso; mandihulis crassis, obtusis, apice dentatis; palpis maxilluribm 

 articulo prime par\ o, duobus sequentibus crassiuscidis, ultimo semi- 

 ovato ; mcnto transvorso, angulis anticis obscletis ; liyula oblonga, obtusa, 



