14 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 120 
diameter, complete row of about 20 av (about 5 of which definitely 
bristles, others hairlike), a series of pv bristly hairs in basal half 
similar to av series; tf; with 5 median av somewhat shorter than tibial 
diameter, some bristly pd hairs (a slightly larger one at apical third 
might be called calcar), distinct apical d and av, other apicals no 
larger than surrounding bristly setae. T; is distincly compressed on 
apical half of posterior surface and is furnished with a narrow but 
deep sulcus in pd middle half. Cz; bare at apex above. 
Wing (fig. 3a) hyaline; veins brown to black, only swollen base of 
costa as far as humeral crossvein yellowish; tegula and basicostal scale 
black; alar squama with blackish margin; thoracic squama closely 
adjacent to base of scutellum, with nearly straight apical margin, 
white and with very short whitish marginal cilia; costal vein at swollen 
base with rather long bristles, otherwise with very short depressed 
spinules; all other veins bare; halter with dark brown knob. 
Abdomen rotund, swollen, covered dorsally with yellow pruinosity 
in somewhat changeable pattern, giving it a finely peppered appear- 
ance, except on basal 2/3 of 1st apparent tergite. Whole surface of 
abdomen covered with fairly dense decumbent hairs, marginal seg- 
mental hairs somewhat longer and more bristle-like; 1st ventral 
segment hairy. Postabdomen as in figures 4a-c; 5th sternite with 
broad, V-shaped emargination and 2 digitate apical protuberances 
(fig. 46). 
FrEmMaLe.—Wing length 7.9-8.6 mm. Similar to male, except as 
follows. 
Head (fig. 36): front slightly broader anteriorly, 0.38 of total 
width of head; anterior ommatidia 1.25 times as large as posterior ones. 
Legs with f; bearing complete rows of long pd and pv and small 
group of medial a; ¢, with 1-2 pd in apical half, nearly complete row 
of 9-10 rather short ad, long apical ad, pd, and pv; t; lacking the regular 
palisade of ad of male, but with a number of irregular bristles, of which 
2 near middle stand out; t; also with pd bristles a little coarser than 
in male, but calcar no more distinct; posterior compression and 
sulcus as In male. 
Abdomen in general appearance much as in male; postabdomen as 
in figure 4d (ovipositor), 8th sternite consisting of 2 elongate cuneiform 
sclerites; spermathecae not seen. 
Hototypse.—Male, Malaya, Selangor Gombak Forest Reserve, tree 
platform, Dec. 9, 1961 (H. E. McClure); allotype, same data, Dec. 
17, 1961; paratypes, same data, 1 o, Nov. 10, 1962, bait trap 2000’; 
1 o', May 20, 1961; 1 9, Mar. 3, 1961; 1 9, Apr. 1, 1961; 19, June 3, 
1961; 1 9, June 10, 1961; 1 9, Oct. 21, 1961; 2 9, Sept. 1, 1962; 
USNM 67824. 
