1887.] PHYTOPHAGOUS COLKOPTERA OF CEYLON. 81 



Dermorrhytis cuprea, sp. nov. 



Bronze-coloured ; antennae and legs nearly black ; thorax sub- 

 remotely and strongly punctured, margined with green ; elytra 

 distantly punctate-striate, the sides transversely rugose below the 

 shoulders. 



Length 3-3| lines. 



Head strongly rugosely punctured at the vertex ; the epistome 

 much more closely punctured and separated from the face, its lower 

 edge straight ; labrum and jaws piceous. Antennae filiform, two 

 thirds the length of the body, the third and three following joints 

 piceous, slender, and of equal length, the others slightly thickened 

 and nearly black. Thorax not more than twice as broad as long, 

 the sides obsoletely angulate before the middle, nearly straight from 

 there to the base, the margin slightly dentate or sinuate, metallic 

 greenish ; rest of surface strongly and remotely punctured, the punc- 

 tuation more close and strong at the sides, where the interstices are 

 partly rugose and forming transverse wrinkles. Elytra cupreous, 

 with more or less metallic greenish reflections, very distantly and 

 strongly punctate-striate at the disk, the sides very strongly trans- 

 versly rugose and wrinkled. Prosternum dilated posteriorly, broad ; 

 the anterior margin of the thoracic episternum concave. 



D. cuprea may be recognized by the distant punctuation of the 

 elytra, the general cupreous colour of the upper surface, and the 

 nearly black legs. The punctuation of the thorax differs according 

 to the sex, and is sometimes more closely arranged ; while in some 

 specimens the middle of the disk represents a nearly smooth longi- 

 tudinal space ; the anterior angles are rather prominent, and the 

 shape of the thorax is less transverse than in the other allied forms. 



Dermorrhytis ceylonensis, sp. nov. (Plate X. fig. 7.) 



Greenish or brownish aeneous, below obscure piceous ; antennae 

 and legs fulvous ; head and thorax closely and rather finely rugose- 

 punctate ; elytra punctate-striate, the interstices anteriorly and at 

 the sides transversely strigose. 



Length 2^-3 lines. 



Head closely rugose-punctate, the space between the antennee fur- 

 nished with a smooth tubercle ; labrum fulvous. Antennae slender, 

 two thirds the length of the body, fulvous, the terminal joints some- 

 times stained with piceous, tliird joint slightly longer than the fourth. 

 Thorax scarcely twice as broad as long in the male sex, more trans- 

 verse in the female, the sides very slightly rounded or obsoletely 

 angulate before the middle, the anterior angles acute and slightly 

 produced ; surface closely rugose-punctate like the head, metallic 

 green, the extreme lateral margin reddish cupreous anteriorly. 

 Elytra much more remotely and more strongly punctured than the 

 thorax, the interstices strongly raised and forming transverse strigaa 

 anteriorly and at the sides, as well as at the apices, the lateral 

 margin bright aureous-cupreous. Legs dark fulvous or obscure 

 piceous. 



Dikoya. 

 Proc. Zool. Soc— 1887, No. VL 6 



