1887.] PHYTOPHAGOUS COLEOPTERA OF CEYLON. 101 



testaceous ; thorax metallic blue or greenish, finely punctured ; 

 elytra metallic purplish or cupreous, closely punctured. 



Length 1 line. 



Head impunctate ; the frontal tubercles feebly raised. Antennte 

 black, the last seven joints transversely dilated, "the others obscure 

 testaceous. Thorax transversely snbcylindrical, widened towards the 

 middle, the surface finely granulate and punctured, with an obscure 

 longitudinal impression near the lateral margin. Scutellum triausnlar, 

 piceous. Elytra very convex, narrowed behind, of a reddish metallic 

 cupreous colour, very closely and irregularly punctured. Legs black, 

 the tibiae rather lighter, the posterior ones armed with three or 

 four teeth ; their apices with a long fulvous spine ; claws appen- 

 diculate. 



Bogawantalawa. 



This species is of the same shape as the preceding, with which it 

 has further all the structural characters in common ; the different 

 coloration sufficiently distinguishes it. 



IVALIA FULVIPENNIS, sp. HOV. 



Black ; head and thorax impunctate ; elytra dark fulvous, very 

 closely and irregularly punctured. 



Length 1 line. 



Head broader than long. Antennae short, robust, the three lower 

 jomts obscure fulvous, the rest black. Thorax three times as broad 

 as long, the sides nearly straight, surface entirely impunctate, black. 

 Scutellum black. Elytra rounded, very convex, dark reddish fulvous, 

 closely punctured, the interstices somewhat rugose or wiinkled. Legs 

 piceous, the tibiae more or less obscure fulvous. 



Demarchus (gen. nov. Halticinorum). 



Body ovate ; pubescent. Antennae filiform, the third joint more 

 than double the length of the second ; palpi robust. Thorax trans- 

 verse with an anterior and posterior transverse depression. Scutellum 

 subpentagonal. Elytra pubescent, finely rugose, their epipleurae 

 disappearing below the middle. Tibiae simple, unarmed ; the first 

 joint of the posterior taisi not longer than the second ; claws ob- 

 soletely bifid. Anterior coxal cavities open. Prosternum scarcely 

 visible. iMesosternum narrow and pointed. 



The single specimen before me, upon which I am obliged to 

 estabhsh the present genus, resembles in general appearance a species 

 of the genus Sebaetha, from which the simple tibije, transversely 

 impressed thorax, and the pubescent elytra will at once distinguish 

 It. The posterior femora are moderately but very distinctly iu- 

 crassate. 



Demarchus pubipennis, sp. nov. 



Testaceous ; head rugose ; thorax shining, nearly impunctate ; 

 elytra obscure fulvous, the basal and the lateral margin obscure piceous.' 

 Length 2 lines. 

 Head finely rugose at the vertex, the frontal tuborclea distinct. 



