480 
PACIFIC SCIENCE, VoL VII, October, 1953 
age A that is present in the Palawan specimen 
(see figure) . 
AEDES OF UNKNOWN SUBGENERA 
Aedes (?) platylepidus Knight and Hull 
1951. Aedes (?) platylepidus Knight and Hull, 
Pacific Sci. 5: 201 (3 females). Type 
locality: Philippines. Puerto Princesa, 
Palawan (Laffoon and Johnson). Type: 
Female (holotype )in U.S.N.M.f 
DISTRIBUTION: Specimens examined. Known 
only from type series. Palawan: Puerto Prin- 
cesa. Balabac: Cape Melville. 
DISCUSSION: The male is unknown and the 
larva is not described. The type series was 
obtained from a larval collection but unfor- 
tunately no associated larval material was re- 
tained. 
This species is strikingly different, on the 
basis of the broad plate-like dark (with metal- 
lic reflections) scutal and scutellar scales, from 
all other known Pacific Aedes species. Lack of 
the male and larva, together with the rather 
aberrant characters of the female, prevent the 
making of a definite decision at this time as 
to the subgeneric position in Aedes of platy- 
lepidus, The possible relationships of this spe- 
cies are discussed in some detail in the original 
description. 
Aedes, species unknown 
Three larval specimens from Palawan and 
Balabac represent an unknown aedine species. 
It is quite possible that this is either the larva 
of Aedes platylepidus or of Heizmannia scintillans 
Ludlow, but in the absence of associated mat- 
terial it is impossible to say definitely at this 
time. 
LARVA: Head: Antenna smooth, rather 
stocky; antennal hair single, inserted near 
apex. Mouth brush with comb-like tips. Hair 
4 single, rather long, dark, curved inward; 
5 single; 6 with 2-3 branches; 7 single or 
double, small; 8 single; 9 double; 12 with 
2-3; 13 and 14 single; 15 with 1-3; 17 and 18 
single; 20 double; 18 is inserted just mesad 
and ventral to 17, rather than near the lower 
corner of the mentum. Mentum with 8-9 lat- 
eral teeth. Thorax: Pro thoracic hairs 1 and 2 
single; 3 with 3 branches. Mesothoracic hair 
9 single; thoracic hairs in general quite sparse- 
ly branched. Abdomen: Dorsolateral hair on I 
with 2-3 branches; on II double. Lateral hair 
on I double; on II single or double; on III 
and IV with 3-4; on V and VI with 5-6. 
Pentad hair 1 with 2-3; 2 and 4 single; 3 with 
2-6; 5 with 2-3. Comb with 6 teeth in a 
curved row, each tooth long, slender, sharply 
pointed, with a small amount of fringe lat* 
erally at the base of the spine. Siphon smooth, 
with an attached acus, index 2. 1-2. 4; 7-12 
pecten teeth in an irregular row, each with 
fine fringe basally on ventral side and occa- 
sionally on dorsal side also; siphon hair tuft 
with 4-6 branches, inserted either before, near, 
or beyond the last pecten tooth. Anal plate 
apparently complete, with a few small spicules 
laterally on the posterior margin; Ih with 3-4 
short, rather stout branches; isc single (once 
double), osc single; ventral brush of 10 hairs, 
each single except for basal pair with 3-5 
branches; no barred area present. Anal gills 
finger-like, dorsal pair slightly shorter than 
ventral pair and 2. 2-2. 5 times longer than 
anal plate. 
BIONOMICS: This larva was taken on one 
occasion from water collected in a large metal 
packing container in the jungle and on an- 
other from water collected in a large, thorny 
palm frond lying on the ground at the edge 
of a mangrove area. 
DISTRIBUTION: Specimens examined, R.K.L. 
Palawan: 2 larvae (#854) Irahuan River, 3 
miles inland (Laffoon). Balabac: 1 larva 
(#1611), Cape Melville (Johnson). 
One of the Palawan larvae is deposited in 
the U. S. National Museum as Aedes sp. 
#46. The other two are retained in the Knight 
collection. 
REFERENCES 
Barraud, P. J. 1934. The fauna of British In- 
dia. VoL V, Diptera, family Culicidae: 
tribes Megarhinini and Culicini. 463 pp. 
Taylor and Francis, London. 
