388 The Philippine Journal of Science 1923 



with orange yellow; median basal area of scutellum lemon 

 yellow. Tegmina with subcostal and apical areas hyaline, re- 

 mainder orange yellow tinged with reddish apically ; three oblique 

 stripes in subcostal area and a costal dot distad of these fus- 

 cous ; inner apical angle of second apical cell, nearly all of third, 

 and apex of outer apical cell dark fuscous, this colored field 

 very much darker basally. Length of male, 5 millimeters. 



Front broadly flattened to extreme base, the sides not convexly 

 rounded, and with a strong median carina which is a little 

 raised near base; surface shagreened. Basal lateral areas of 

 face nearly as in P. malayana. The very large and prominent 

 ocellus lies close to inner extremity of bordering carina 

 and a little more than its own diameter from eye. Length 

 of vertex one and a half times interocular width, the inner 

 margins of eyes strongly convergent caudad, sides of head 

 protuberant in front of eyes; surface of vertex gently broadly 

 concave, smooth except for scattering punctures, lateral folds 

 minutely rugose. Length of pronotum (Plate 4, fig. 32, a) a 

 little more than half that of vertex, the anterolateral margins 

 into width about five times ; surface appearing smooth but basal 

 area very minutely transversely aciculate. Basal area of scutel- 

 lum smooth. Venation (Plate 4, fig. 32, b) peculiar because 

 of the position of the two oblique veins in subcostal area, these 

 being farther than usual from apical cross veins ; the subequal 

 second and third apical cells with subparallel sides, and the 

 cross veins at their base more or less nearly in line. 



Borneo, Sandakan (Baker). Eemarkably distinct by the 

 ocelli and the coloration. 

 Pseudonirvana penangensis sp. nov. Plate 4, fig. 33. 



Very pale ochraceous, entirely without black markings; a small 

 cloud before apex of vertex, and anterior half of median carina 

 reddish. Tegmina subhyaline, inner half and apical veins tinted 

 with yellowish; two faint oblique lines on apical half of sub- 

 costal area. Length of male, 5 millimeters. 



Differs in structure from P. davaoensis as follows: Basal 

 areas of sides of face as in P. sandakanensis ; depression of 

 front falling considerably short of reaching base of face. 

 Ocellus situated in a small depression almost in line of bordering 

 carina of vertex, and its own diameter from eye, the bordering 

 carina becoming indistinct, about once the diameter of the 

 ocellus before it, and sending indistinct branches both below 

 and above it. Length of vertex (Plate 4, fig. 33, a) about one 



