312 "^he Philippine Journal of Science wi? 



first or first and second tergites, medially carinate; all tergites 

 shallowly striate, the striae on lateral portions of third, fourth, 

 and fifth tergites somewhat oblique; second suture crenulately 

 impressed and strongly curved; basal surfaces of fourth and 

 fifth tergites strongly depressed. Hind tibial spurs short, 

 straight, and pubescent. 



Type, Rhogasella straminea sp. nov. 



Synopsis of the species. 



a\ Ocelli set in a depressed area, the anterior not farther removed than 

 distance between posterior; occipital margin (viewed from above) wide 

 and deeply incurved; first and second tergites with a distinct median 

 carina; dorsum of abdomen not medially piceous..-. straminea sp. nov. 



d'. Ocelli not set in a depressed area, the anterior much farther removed 

 than distance between posterior ; occipital margin narrowed and nearly 

 straight; first tergite only with distinct median carina; dorsum of 

 abdomen medially piceous lineata sp. nov. 



Rhogasella straminea sp. nov. 



Antennae and thorax ochraceous; head, abdomen, and legs 

 stramineous; abdomen and tarsi distally darkened. A small 

 mark at base of metanotum, interocellar area, and sutures of 

 flagella piceous. Wings very faintly obscured, stigma and veins 

 stramineous, the latter darker basally. Ovipositor ochraceous, 

 longer than depth of last abdominal segment and hypopygium 

 together. 



Female, length, 5.5 millimeters. 



Head viewed from above with large nonbulging eyes, which 

 deeply enter head ; vertex back of ocelli long and with a median 

 incised line ; occipital margin wide and broadly, deeply incurved ; 

 exposed margin of cheek as long as twice distance from ocelli 

 to eyes, posterior length of vertex three times the latter 

 distance; surface of vertex smooth and shining; ocelli small, 

 seated in a depressed area, separated by a little less than 

 their long diameter, the anterior not farther removed, the pos- 

 terior slightly farther from eyes than their long diameter. Face 

 subquadrate, as long as broad, subobsoletely, transversely, and 

 irregularly punctate-striate ; medially umbo-carinately raised just 

 below antennae; mouth opening narrow, subelliptical ; clypeus 

 with basal suture highly arched, apical margin less strongly 

 curved; clypeal pits distant from eyes about twice their diam- 

 eter. Head viewed from side with face margin strongly pro- 

 jecting, especially at antennae, but very slightly curved at middle ; 

 ocellar area not raised; cheeks narrow, about one fourth the 

 lower width of eyes, outer margin parallel to eye margin ; malar 



