( H28 ) 



sides straight, the iiosterior angles obliiiuo, the surface closely rugose, flavous, with a 

 slight metallic greenish tint, the disc with three (sometimes conthient) greenish spots, 

 placed triangularly, scutellum aeneous ; elytra sculptured like the thorax, very 

 obscure dark aeneous, abdomen strongly dilated, the segments spotted with black at 

 the sides, pygidium obscure fuscous at the a])ex. 



IlaJ). Humboldt Hay (New (hiinea). 



At once to be separated from any of its allies by the entirely rugose upper 

 surface, the colour of the head and thorax. 



Prasyptera abdominalis sp. no\. 



Fulvous, the antennae (the last two joints excei)teil) and the abdomen lilack, 

 thorax with a tran.sverse sulcus, finely punctured, elytra metallic greenish, finely and 

 closely punctured ; legs more or less stained with black. 



Length 4 to 3 Hues. 



Of [losteriorly strongly dilated shape, the head fulvous or rufous, impimctate, 

 frontal tubercles trigonate, strongly raised, carina acutely raised, the clypeu.s rugose, 

 labrum black, antennae closely approached at the base, black, the apical two joints 

 whitish, extending to the apex of the elytra, the basal joint extremely long and 

 slender, the fourth double the length of the third joint ; thorax three times broader 

 than long, the sides nearly straight, the angles tuberculiform, the surface with a deep 

 transverse depression at each side, finely and irregularly punctured, the amount of 

 the punctuation dififering in the specimens ; scutellum fuhous, smooth, its apex 

 pointed; elytra dark metallic green, finely and clo.sely punctured, the apex of each 

 somewhat truncately rounded, breast fulvous, anterior femora more or less stained 

 with black, the other legs nearly entirely of that colour. 



Hah. Humboldt Bay (Xew Guinea). 



To be separated from its allies by having the two terminal joints of the antennae 

 pale, and by the entirely black abdomen and nearly similarly coloured femora. 



Platyxantha dohertyi --p. no\. 



Elongate, fuhous; thorax impunctate with two impressions, elytra minutely and 

 closely punctured. 



Length 4 lines. 



(J. Head impunctate, the frontal elevations transverse, strongly raised, clvpeus 

 triangular, swollen, third joint of palpi rather robu.st ; antennae slender, extending 

 beyond the middle of the elytra, fulvous, the first joint elongate, thickened at its 

 apex, the second short, the following joints elongate, nearly as long as the first, 

 thickened at the base and apex ; thorax sulxpiadrate, one half broader than long, the 

 sides constricted at the base, widened at the middle, the dL-^c entirely impunctate, 

 .shining, with two deep impressions; scutellum broad, its apex slightly rounded; 

 elytra not depressed below the base, the latter broader than tlie thorax, the surface 

 very finely and closely punctured, their ejjipleurae broad, continued below the 

 middle; tibiae unarmed, the first joint of the po.sterior tarsi, longer than the follow- 

 ing joints; claws appendiculate ; anterior coxal cavities closed. 



Hah. S.E. Borneo (Tameang Lajang). 



The uniform coloration and the thickened base and apex of the joints of the 

 antennae in the male separates this species from others nearly similarly colotu:ed ; 



