134 Phytojihaga Malayana. 



secundo brevi, articulis exterioribns paullo compressis ; oculis 



intus emarginatis, supra sulco piofundo marginatis ; epislomate 



cum fionte continue, lined suturali apice obsolela; encarpis 



distinciis; mento angulato, inciso. Thorax marginatus, supra 



convexus. £(<//?•« parallela, con vexa, infra basin transversim 



depressa aut excavata, inordinatim aut seriatim punctata. 



Pedes robusti ; femorihiis incrassatis ; t'lbiis intermediis extus 



ad apicem non emarginatis ; ungu'iculu bifidis aut dentatis. 



Prosfernum utrinque ab episterno sulco profundo separatum ; 



episternis anticis tiigonatis. 



The species of the genus Chrysochus divide themselves into two 



sections: the 1st elongate and subcylindrical, represented by C/ir^/- 



hochus pretiosus and other allied species ; the 2nd broader and 



oblong, tlie exponents of this section being Chrysochus pulcher 



and an allied species from Siam. 



1. Chrysochus pulcher, Ba'y. (PI. V. fig. 4.) 

 Desc. New Gen. and Spec. Phyt. p. 1. 

 Oblongus, valde convexus, caeruleo-viridis, nitidus ; capita 

 profunde punctato, Igete purpureo, oculorum margins inte- 

 riore viridi-metallico ; antennis nigris, articulis basalibus 

 fulvis ; thorace aureo, subgloboso, profunde punctato ; ely- 

 tris purpureis, fortiter punctatis, punctis seriatim dispositis. 

 Long. 3g — 4 lin. 



Hab. Malay Peninsula ( Tringanee). 



Head coarsely but not closely punctured ; front impressed with 

 a deep longitudinal groove; jaws and labrum black ; antennae half 

 the length of the body, the basal joint metallic-green, its apex, 

 together with the second and two following joints, fulvous, the 

 remaining joints very slightly compressed, black. 'JMiorax trans- 

 verse, sides moderately rounded, nearly straight and parallel at 

 the base, scarcely converging in front ; above subcylindrical, 

 deeply punctured. Elytra broadly oblong, convex, scarcely de- 

 pressed in the middle below the basilar space, deeply punctured, 

 the punctures arranged in numerous longitudinal rows, inter- 

 spaces on the subbasilar depression thickened, and forming coarse 

 transverse strigae. 



Genus Colaspoides, Laporfe. 

 Silber. Rev. Entom. t. i. p. 20; Baly, Ent. Mo. Mag. i. p. 134. 

 Corpus oblongo-ovatum ant ovatum, valde convexum, metallicum 

 aut non metallicum. Caput breve, thorace usque ad dimidiam 



