Plecia — Hardy 
201 
cross vein. Ceil C u not narrowed. Abdomen 
and genitalia black. Ninth tergum strongly 
forcipate, the lobes slender and curved inward 
(Fig. 12 b). Ninth sternum almost two times 
wider than long, a broad rounded lobe is de- 
veloped on the posterior lateral margin and a 
rather narrow truncate lobe is present in the 
middle on the hind margin. Each clasper is 
developed into an elongate slender lobe at 
apex (Fig. 12^). 
The female antennae are apparently 11- 
segmented and according to Edwards the 
pleura are less extensively blackened. 
Length’. Body, 6. 0-7.0 mm.; wings, 9-0 mm. 
type locality: Pahang, Lubok Tamang. 
Type in the British Museum (Natural 
History). 
I have studied the type and specimens in 
the British Museum from Pahang Federated 
Malay States, Cameron’s Highlands, at light, 
4,800 ft., Mar. 13, 1925 (H. M. Pendlebury). 
Plecia fulvicollis (Fabricius) 
Fig. 13 a-c 
Hirtea fulvicollis Fabricius, 1805, System. Anti., 
53. 
Plecia philippinensis Malloch, 1928, Linn. Soc. 
N. S. Wales, Proc. 53(5): 605. New syno- 
nym. 
The synonymy of philippinensis Malloch is 
based upon the comparison of specimens of 
fulvicollis (Fabricius) from Sumatra, which had 
been identified by Dr. F. W. Edwards, with a 
large series of specimens from the Philippines 
which fit Malloch’s description and figure. 
A number of distinct species have been 
confused in the literature under the name 
fulvicollis; some authors used this name for all 
Pacific and oriental Plecia which have the 
thorax entirely rufous. 
This species is close to P. hakeri Malloch 
and is differentiated by the differently de- 
veloped genitalia of the male. In fulvicollis , the 
ninth tergum has a more U-shaped cleft on the 
hind margin (Fig. 13a), the lobes are rounded 
Fig. 13. Plecia fulvicollis (Fabricius). a. Ninth tergum; 
b , genitalia, ventral view; c, ninth sternum, tilted back. 
