Aedes of the Philippines — Knight AND Hull 
463 
distinct on the basis of larval head hairs 5 
and 6, which are single to triple and single, 
respectively. Typical vexans larvae have these 
hairs with 3-5 and 2-4 branches (the latter 
occasionally single) . Philippine larvae seen by 
us have hair 5 single or double (rarely triple) 
and 6 single (sometimes double). Conse- 
quently, the name nocturnus is employed in 
this paper. Larvae from Europe (Edwards, in 
Barraud, 1934: 253), Japan (La Casse and 
Yamaguti, 1948: 102), and the United States 
(Carpenter, Middlekauff, and Chamberlain, 
1946: 232) have the hair branching given 
above for typical vexans. 
The two cotype females of nocturnus were 
compared in the British Museum with the 
types (all females) of eruthrosops Theobald 
(Ceylon), minuta Theobald (India), and nip- 
ponii Theobald (Japan). The only difference 
noted was that in nocturnus the wings are dark 
except for a small basal patch of pale scales 
on the costa. In the other three types, the 
wings possess a variable amount of scattered 
pale scaling along the costa (as is frequently 
the case in Philippine material) . 
Edwards (in Barraud, 1934: 253) gives evi- 
dence that indicates the probable occurrence 
of additional races or subspecies, but, until 
much more work is done on this subject, the 
status of the Philippine material cannot be 
further clarified. 
Aedes (Aedimorphus) ostentatio 
(Leicester) 
1908. Aioretomyia Ostentatio Leicester, CuL 
Malaya, p. 193 (females). Type locality: 
Malaya. Pahang road (at AVi miles) and 
Gombak road (at 5 miles), Kuala Lum- 
pur (Leicester). Type: 2 females (co- 
types) in BM.f 
1910. Pseudohowardina chrysoscuta Theobald, 
Mon. Cul. 5: 228 (female). Type local- 
ity: Ceylon. Peradeniya (Green). Type: 
Female (holotype) in B.M.f 
1911. Danielsea pagei 'Ludlow , Psyche 18: 128 
(7 females). Type locality: Philippines. 
Fort Pikit, Mindanao (Page). Type: 7 
females (cotypes) in U.S.N.M.f One 
of these specimens here designated 
lectotype. 
1913. Ochlerotatus ostentatio (Leicester). Ed- 
wards, Bui. Ent. Res. 4: 228. Synony- 
my of chrysoscuta. 
1922. Aedes ? ostentatio Leic. Edwards, Indian 
Jour. Med. Res. 10: 468. Synonymy 
of pagei. 
1925. Aedes (Aedes) ostentatio Leicester. Dyar 
and Shannori, Insecutor Inscitiae Men- 
struus 13: 78. Different combination. 
1928. Aedes ip Aedimorphus) ostentatio (Leic.). 
Barraud, Indian Jour. Med. Res, 16: 
374. Different combination. 
Female described by Barraud (1934: 267). 
ADULT: Vertex dorsum partially broad- 
scaled. Scutellum narrow-scaled. Scutum with 
narrow lines of yellow scaling. Tarsi all dark. 
Male. Unknown. 
Female. Wing length 3.6 mm. Head: Pro- 
boscis dark-scaled. Palpus only about one- 
sixth length of proboscis, dark-scaled. Torus 
ochreous, with a few fine dark scales and hairs 
medially. Vertex dorsum with broad dark 
scales, a line of narrow golden scales along 
eye margins and a patch of similar scales me- 
dially on nape (this narrowing a variable dis- 
tance anteriorly, reaching anterior margin in 
some specimens), a patch of upright-forked 
dusky to golden-colored scales on nape; lat- 
eral portion with yellowish broad scales, a 
median patch of broad dark scales. Thorax: 
Scutum with narrow yellow scales along lat- 
eral (broken in region over paratergite) and 
anterior margins and along scutal angles, a 
narrow median longitudinal band of yellow 
scales that forks at the prescutellar area, re- 
mainder with dark narrow scales; acrostichal 
bristles absent, dorsocentral bristles present. 
Scutellar lobes with narrow yellow scales, 
sometimes a few median narrow dark scales 
on mid-lobe, Apn with a few dark scales above 
and a patch of narrow yellow scales below, 
ppn bare except for a sparse dorsal line of 
