Aedes of the Philippines — Knight and Hull 
215 
process near apex of basistyle with 
a row of about 4 heavy spines apic- 
cally {Aedes) nuhicolus 
9. Meteusternum with numerous fine 
hairs; basistyle with a group of 
about 8 stout spines on the inner 
sternal margin near the base; (male 
fore and mid legs with claws un- 
equal, the larger ones uniserrate, 
the smaller simple) 10 
Meteusternum without hairs; basi- 
style without such a group of 
spines 12 
10. Apico-tergal prolongation of basi- 
style very wide, its 2 distal forks 
about equal in length; only 2 other 
long apical processes, sometimes 
a more sternal short spine also visi- 
ble {Aedes) adustus^ 
Apico-tergal prolongation of basistyle 
otherwise; three other long apical 
or subapical processes present. ... 11 
1 1 . Apico-tergal prolongation of basistyle 
very wide {Aedes) johnsoni^ 
Apico-tergal prolongation of basistyle 
much narrower {Aedes) margarsen^ 
12. Mesepimeron with at least 2 hairs be- 
low scale patch, usually more 
numerous 13 
Mesepimeron with a number of bris- 
tles along upper margin but with no 
hairs ventral to scale patch and 
never more than 3-4 behind it. . . . 14 
1 3 . Upper sternopleural scale patch usually 
extending to anterior median angle 
of sclerite; abdominal sternites II- 
VII with a wide basal white band, 
covering at least basal one-half of 
each segment; male with claws of 
fore and mid legs equal and toothed, 
and dististyle simple; female with 
postatrial sclerite not trilobed. . . . 
{Aedes) panayensis 
Upper sternopleural scale patch never 
extending to the anterior median 
angle of sclerite; sternites entirely 
dark brown or with some white 
scales on basal one- third; male with 
claws of fore leg unequal, toothed, 
^These three species are separable only on details of 
the male terminalia. 
daws of mid leg unequal, simple, 
and dististyle forked; female with 
postatrial sclerite trilobed 
{Aedes) hutleri 
14. Scutal integument dark reddish- 
brown; sternites II-VII with about 
basal two-thirds of each segment 
white; male with smaller claws of 
fore and mid legs each with a small 
tooth, basistyle with a large patch 
of flat white scales laterally, and the 
paraproct forked beyond the mid- 
dle; female without a large round 
dark preatrial plate in addition to 
the paired preatrial plates 
{Aedes) campylostylus 
Scutal integument blackish-brown; 
sternites II-VII brown; male with 
smaller claws of fore and mid legs 
simple, basistyle with flat brown 
scales only, and the paraproct 
simple; female with a large round 
heavily pigmented preatrial plate in 
addition to the paired preatrial 
plates {Aedes) nigrotarsis 
15. Hind claws simple in both sexes; fe- 
male with a pair of hairy processes 
anterior to the spermathecal emi- 
nence {Aedes) dux 
Hind claws unidentate in both sexes; 
female without paired hairy pro- 
cesses anterior to the spermathecal 
eminence 16 
16. Male with larger claw of mid leg sim- 
ple, smaller claws of fore and mid 
legs each with a small tooth (fe- 
males of this and of the following 
species indistinguishable except on 
details of the postatrial area; see 
Laffoon, 1946: 232) . . {Aedes) hamistylus 
Male with larger claw of mid leg with 
a prominent tooth, smaller claws of 
fore and mid legs simple 
{Aedes) robertsi 
17. Ppn largely clothed with broad over- 
lapping silvery scales; (paratergite 
with a patch of broad silvery scales) 
{Finlaya) paradissimtUs^ 
^This group of species is separable only on a com- 
bination of larval and male terminalic characters which 
are discussed in the species treatments. 
