410 The' Philippine Journal of Science 1917 



Khogas (Rhogas) luzonensis sp. nov. 



Black ; head below eyes, narrow complete orbits, apex of meta- 

 thorax, first two segments of abdomen, and legs (paler apically) 

 ferruginous; basal third of antennte piceous, remainder much 

 paler. Wings quite distinctly suffused with a smoky tinge, veins 

 brownish, darker on basal half of wing, the basal third of stigma 

 paler. Hypopygium small and shallow; ovipositor but little ex- 

 ceeding apex of abdomen. 



Female, length, 7 millimeters. 



Head viewed from above thick transverse, narrowed back of 

 eyes, eyes large and prominent, distance between them equal 

 to the distance from occipital carina to anterior ocellus; 

 surface anteriorly shagreened, posteriorly becoming transversely, 

 rough wrinkled; ocellar area bordered laterally by a short, 

 narrow, impressed groove; occipital carina a little incurved at 

 middle; length of vertex back of ocelli greater than length of 

 entire ocellar area; ocelli small, distance from ocelli to eyes 

 subequal to interocellar distance and less than the long diameter 

 of an ocellus, anterior ocellus not farther removed. 



Face to mouth broader than long, transversely, reticulately 

 wrinkled (clypeus smoother), with a strong, elevated, median 

 carina, extending three fourths of length ; mouth opening small, 

 subcircular ; clypeus large, much broader than long, basal suture 

 broadly curved and sharply impressed ; clypeal pits distant from 

 eyes five times their diameter. Head viewed from side with face 

 margin broadly curved above, clypeus a little prominent; cheek 

 roughly shagreened, very broad, at middle half the diameter of 

 eye ; malar space very large, its length greater than lower width 

 of cheek; eye of medium size, broadly elliptical. Maxillary 

 palpi stramineous, with third joint stouter and slightly longer 

 than fourth, fifth joint distinctly longer than sixth. 



Antennse about as long as entire body, the scape broad at 

 apex, its length about one and one-half times the width at apex ; 

 funicle about half as long as the scape, little narrowed apically; 

 length of middle flagellar joints about one and one-half times 

 the width. 



Mesonotum trilobed, middle lobe broadly extended, without 

 median carina, surface finely, thickly, irregularly, roughly 

 wrinkled throughout; notauli broad, strongly impressed, and 

 strongly converging posteriorly; posterior median area plane 

 and rugose. Scutellum anteriorly with four fovese, the two outer 

 larger, separated by high and equally strong carinse; posterior 

 disk of scutellum shagreened. Metanotum coarsely, shallowly, 



