8 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 120 
14 (11). Entire costal margin of wing from root to end of 4th vein with brown 
seam; abdomen wholly greenish. 
15 (16). Shining mesonotal vittae gradually tapered posteriorly; abdomen with 
dense, yellow pruinose anterior tergal margins; 9: spiracles of 5th 
tergite near anterior margin, only twice their diameter from each 
other, surface of tergite dull. . .... . P. trivittata (Walker) 
16 (15). Shining mesonotal vittae tapered rather suddenly at posterior end; 
pruinose tergal margins of abdomen faint; 9: spiracles of 5th tergite 
near posterior corners, widely separated, surface of tergite shining. 
P. trivittigera Malloch 
Plagiostenopterina (Meringomeria) hebes Hendel 
Plagiostenopterina hebes Hendel, 1914, Abhandl. Zool.-Bot. Ges. Wien, vol. 8, p. 70. 
The type and only described specimen is a male from Singapore. 
McClure captured a female on the Selangor Gombak tree platform, 
on May 7, 1961, which agrees very well with Hendel’s description. 
Spiracles of 5th tergite as in preceding key, those of 4th tergite near 
posterior corners; front dull blackish with very narrow shining median 
longitudinal stripe and many black hairs; abdomen shining, lightly 
transversely carinulate, and with black hairs on all dark parts, whitish 
hairs at the yellowish base. 
Plagiostenopterina (Meringomeria) leytensis, new species 
Frmaue.—Length of wing 6.5 mm. 
Head brownish yellow; antennal grooves and pair of ill-defined 
occipital spots piceous; 3rd antennal segment, palpus, and front brown. 
Hairs of front whitish to yellowish. Medifrons wholly dull. 
Thorax largely brownish; middle of mesonotum, mesopleuron, and 
sternopleuron metallic greenish; nearly entire thorax covered with 
moderately dense whitish tomentum or coarse pruinescence, that on 
mesonotum uniform and not showing shining stripes, but with a 
trace of brownish dorsocentral lines; all hairs whitish to yellowish, 
except a few black ones on anterodorsal corner of mesopleuron and 
adjacent humerus; all bristles black. 
Legs with all cx and f yellowish, only f; with small black antero- 
apical spot; ¢ black, only basitarsus; brown. Bristles of cz, d and v 
rows of f;, and 6-8 bristles and several hairs on dorsal third of f, 
black; all other vestiture of f (hairs) whitish. 
Wings light yellowish hyaline, entire costal margin from root to 
tip of 4th vein with dark brown seam, broadest near tip of wing. 
Basal 4/5 of 2nd basal cell and basal half, except narrow strip along 
anterior edge, of anal cell bare. Squamae and their fringes whitish. 
Halter blackish. 
Abdomen metallic greenish black; compound 1st dorsal segment 
with transverse pruinose yellowish band in 8rd quarter; basal 2/5 
