376 The Philippine Journal of Science 1923 



Genus BALBILLUS Distant 

 Distant, Fauna Brit. India, Rhynch. 4 (1908) 287. 



Type, Balbillus granulosus Distant (Ceylon). 



The known range of this well-marked genus is now extended 

 to Singapore and to British North Borneo. The relationships 

 of Balbillus and Macroceratogonia seem to be unquestionable. 

 Balbillus albellus sp. nov. Plate 3, fig. 21. 



Very pale ochraceous, the scutellum darker ochraceous with 

 the apex blackish. Tegmina and wings milky translucent, sub- 

 costal and apical areas of tegmina subhyaline; small fuscous 

 clouds covering apex of clavus, and apices of apical veins. 

 Length, female, 6.75 to 7 millimeters ; male, 5.5. 



Whole front, to sides and extreme base, strongly flattened, 

 delicately shagreened, the strongly curved lateral sutures of 

 front distinct to their basal union beneath apex of vertex 

 (Plate 3, fig. 21, c) ; genss strongly extended beyond clypeus. 

 Eyes small, width between them and front on either side greater 

 than their width in facial view; face about as broad as long. 

 Antenna- situated close under the margin of crown, the scrobe 

 cutting through next eye to the upper surface of crown. An- 

 terior margin of crown bordered by a sharp carina which is 

 equivalent to the subocellar carina of Pythamus; the true vertex 

 (Plate 3, fig. 21, a) is margined anteriorly by a curved carina 

 which touches the border carina only at apex and curves back- 

 ward toward, but does not connect with, the lateral carinse of 

 vertex, the indistinct ocelli being situated just within anterior 

 extremities of latter, thus anterior to eyes and three times 

 their diameter from latter. Length of crown a little less than 

 mterocular width, the basal margin straight, the lateral margins 

 in front of eyes deeply angularly incised over the antenna- 

 delicate vestiges of a median carina occur only at base and 

 before apex; median basal area smooth, remainder of surface 

 more or less wrinkled and roughened. Length of pronotum 

 nearly as great as that of vertex, the anterolateral margins 

 into width about three times; surface smooth, depressed back 

 of eyes, median basal area thickly microscopically transversely 

 aciculate and sparsely punctate. Scutellum a little longer than 

 pronotum, median basal area smooth, apical area minutely 

 roughened, and suddenly elevated just before extreme apex, 

 clavus smooth, subcostal area of corium subobsoletely wrinkled 

 and punctured, stronger basally. Venation peculiar because of 



