421 



Genus Dexdrokara Melichar. 



D. monstrosa Mel. 



I have examined twenty males and eighteen females ; in all 

 the former the antennae are typical of D. monstrosa while in 

 the latter they are typical of D. torva. It is possible that 

 j\[elichar described forra from a female and not a male, and 

 that they are the sexnal forms of the same species. 



Genus Platocera Mnir. 



The distinction between Platocera and Heronax is likely to 

 break down with the increase of specific forms, the antennae 

 are not good generic characters. 



P. ruhicundum sp. nov. 



9 Face in profile not ascendingly produced as in the type of the 

 genus; antennae as long as the face, second joint flattened, attached to 

 first joint by the basal corner, arista at apex. 



Brown tinged with red, or claret brown; rostrum, vertex and base 

 of face and legs yellowish, abdominal sternites deeper red. Tegmina 

 fuscous, a clear hyaline half circle on hind margin beyond clavus, 

 another clear space on margin over median area, over costal cell and 

 apical subcostal and radial cells, veins tinged with red. 



Pregenital plate large, flattened, shield-shape, posterior margin angu- 

 larly produced from sides to middle, the produced portion turned ven- 

 trad, apex with small angular emargination ; anal segment fairly large, 

 apex with rounded emargination in middle half; styles fairly well de- 

 veloped. 



Length 4.33 mm. ; tegmen 10 mm. 



Ilab. Bartica, British Gniana, July, 1901 {Coll H. S. 

 Parish). Type in coll. Prof. H. Osborn. 



Genus Xioerta Walker. 



N'. craenta Mnir. 



Philippine Islands; Luzon, Mt. Maquiling, Baguio; ]\rin- 

 danao, Davao. 



This species was descril:)cd from one female specimen from 

 Amboina. I have five females and two male specimens from 

 the Philippine Islands which I cannot separate from the 



