204 
Fitting in the group of species which have 
the mesonotum bright orange and the pleura 
brown to black. It is related to P. laffooni 
Hardy and is distinguished only by the male 
genital characters. In gurney i the ninth tergum 
is much broader, the cleft on the hind margin 
is broadly V-shaped so that the lobes of the 
ninth tergum are widely divergent at their 
apices, the claspers are much better developed 
than in laffooni and extend well beyond the 
apices of the submedian lobes extending from 
the hind margin of the sternum. The lobes on 
the posterior lateral margins of the sternum 
are tiny, poorly developed, not elongated as in 
laffooni. The accessory structures of the aedea- 
gus are rather inconspicuous and barely pro- 
trude beyond the hind margins of the sternum, 
rather than strong and produced beyond 
apices of claspers as in laffooni (refer to Hardy, 
op. tit.: 81 and 83, figs. 4a, b, 6a, b). 
Length: Body, 4.0-4. 5 mm.; wings, 6.0 mm. 
type locality: Bougainville Island. 
Type in the U. S. National Museum. 
Plecia inconspicua Hardy 
Fig. 15 a-c 
Plecia inconspicua Hardy, 1950 Hawaii. Ent. 
Soc. Proc. 14: 79- 
A moderately small species in the complex 
which has the dorsum of the thorax chiefly 
rufous and the pleura brown to black. It is 
related to P. malayaensis Hardy because of the 
forcipate lobes of the ninth sternum. It is dif- 
ferentiated by having the lobes of the ninth 
tergum more acutely pointed at apices, rather 
than broad and truncate; by having the claspers 
rather triangular in shape and with a narrow 
lobe extending from posterior submedian 
margin of sternum alongside of each clasper 
and also by having the ninth sternum largely 
membranous in the central portion (Fig. 15^), 
not sclerotized. I misinterpreted the charac- 
teristics of the claspers and hind margin of the 
ninth sternum in the original description. 
After studying more completely cleared speci- 
mens a pair of submedian lobes have been 
PACIFIC SCIENCE, Vol. XII, July, 1958 
Fig. 15. Plecia inconspicua Hardy, a, Ninth sternum; 
b, ninth sternum, tilted to left showing submedian lobe; 
c, ninth tergum. 
found the stone rnum, these lie very close to 
the inner margins of the claspers and are easily 
overlooked (Fig. 15^). Also the lobes of the 
ninth tergum are subacute, not sharply pointed 
in the specimens at hand (Fig. 15c). For a 
more complete description refer to the original. 
Length of type: Body, 3.0 mm.; wings, 
3.75 mm. 
type locality: Kokoda, Papua. 
Type in the British Museum (Natural 
History). 
Specimens on hand from Wisselmeren, Wa- 
ghete, Tigi L., New Guinea (Netherlands), 
1700 m., Aug. 17, 1955 (J. L. Gressitt) are 
slightly larger than the type: body, 4. 0-4. 2 
mm.; wings, 5. 0-5. 3 mm. 
Plecia javensis Edwards 
Plecia javensis Edwards, 1925, Treubia 6: 158. 
A large species with the thorax all rufous 
and the wings brown to blackish fumose. It is 
