Plecia — Hardy 
219 
of male two times wider than long with a 
broad U-shaped cleft in middle of hind margin 
(Fig. 30 a). Ninth sternum wider than long 
with slender, inwardly curved lateral lobes and 
rather broad, rounded submedian lobes on 
hind margin, the latter separated by a basally 
expanded cleft. The claspers are two or more 
times longer than wide and are obtuse at 
apices (Fig. 30 b). 
Length: Body, 5. 5-6.0 mm.; wings, 7.0- 
8.0 mm. 
TYPE LOCALITY: Pahang, Malaya. 
Type in the British Museum (Natural 
History) . 
I have studied the type series in the British 
Museum. 
Plecia (Heteroplecia) visenda Hardy 
Plecia ( Heteroplecia ) visenda Hardy, 1950, Ha- 
waii. Ent. Soc. Proc. 14: 75-76, fig. la, b. 
This is the subgenotype of Heteroplecia 
Hardy which is characterized from other Plecia 
by the absence of ocelli or an ocellar triangle; 
there are no indications of these structures in 
Fig. 30. Plecia varians Edwards, a, Ninth tergum; 
b, ninth sternum. 
either sex, and the compound eyes of the male 
are joined on the front up to the hind margin 
of the head. The species can be recognized by 
the subgeneric characters; it is a large species 
which has the thorax all rufous but the male 
genitalia are very different from those of other 
Plecia known to me. 
male. Genitalia: The tergum and the ster- 
num are partly fused laterally on the dorsum. 
The tergum is developed into two large, some- 
times divergent, lobes separated by a cordate 
shaped median cleft {loc. cit ., fig. la); the 
lobes are not usually so divergent as was fig- 
ured, the genitalia of this specimen probably 
had been flattened. The ninth tergum extends 
about two times the length of the sternum. 
The ninth sternum is developed into a large 
rounded lobe on each posterior lateral margin, 
these extend nearly three-fourths the length 
of the clasper; the posterior median margin 
has a broad, irregular, submedian lobe just 
inside each clasper, these are separated by a 
small cleft which has a small median point at 
its base. The claspers are rather strong, ex- 
tending well beyond lobes of sternum, and are 
sharp pointed at apices {loc. cit., fig. lb). 
Length: Body, 9.5 mm.; wings, 11.0- 
12.0 mm. 
The female has not been previously de- 
scribed. It fits the characteristics of the male 
except for sexual characters. The front is mod- 
erately broad, at its narrowest point it is about 
two-thirds as wide as one eye, measured from 
dorsal view; the front is subopaque, densely 
dark gray pubescent with a short keel in mid- 
dle below, just above antennae and evenly 
rounded on the upper portion and vertex with 
no indication of ocelli or an ocellar triangle. 
The head is almost as high as long, the occi- 
put is scarcely produced. Antennae brown, 
tinged with rufous especially on the basal 
segments; 12-segmented, counting the small 
tip portion. The palpi are elongated, they are 
one-third longer than the head or the antennae. 
Length: Body, 10.0 mm.; wings, 12.0 mm. 
type locality: Mt. Eiori, Dutch New 
Guinea. 
