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



duoto, ultimis duobus gracilibus, illo basi flexuoso, hoc eurvato ; labro 

 transverso, antice emarginato ; mandibulis apice dentatis ; palpis max Ma- 

 rtinis articulo primo parvo, duorum sequentium utroque a basi ad apicem 

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

 mento transverso-quadrato ; oculis magnis, rotundatis, prominentibus. 

 Tliorax transversus, dorso bi-impressus. Scutellum trigonatum. Elytra 

 thorace latiora, parallela, dorso subconvexa. Pedes graciles et (prse- 

 sertim postici) elongati ; coxis anticis contiguis, intermediis magnis, fere 

 contiguis ; tarsis tibiarum apici inscrtis ; unguiculis appendiculatis. 

 Type, Xenarthra cervicornis, Baly. 



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

 remarkable 12-jointed antenna), 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.) 



X. elongata, sat angustata, pallide flava, nitida ; antennis difformibus, 

 nigris; capitis thoracisque lateribus,metasterno, abdomine (baseos medio 

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

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



Hob. Ceylon. 



Head strongly exserted; eyes prominent; face above the antennas 

 furnished with a triangular elevated space, divided longitudinally by a 

 medial groove, the apex of which terminates in a deep fovea ; antennae 

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

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

 tophagous insects at the apex of the antennas, 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 behiud the middle 

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

 acute. Elytra rather broader than the thorax, parallel, moderately con- 

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

 tudinal costte. Legs slender; tarsi stained with fuscous. 



Genus Stexoplatys. 



Corpus subelongatum. Caput exsertum ; antennis gracillimis, filiformibus, 

 corpore longioribus, articulo primo eurvato, a basi ad apicem leniter in- 

 crassato, secundo brevi, tertio quarto vixlongiore, maris articulis ultimis 

 tribus compressis, paullo dilatatis, clavam angustam acutam forman- 

 tibus; epistomate brevi, transverso, utrinque abbreviato; labro trans- 

 verso; mandibulis crassis, obtusis, apice dentatis; palpis maxillaribtis 

 articulo primo parvo, duobus sequentibus crassiusculis, ultimo semi- 

 ovato ; mento transverso, angulis anticis obsoletis ; ligida oblonga, obtusa, 



