Aedes of the Philippines — Knight and Hull 
461 
(these two segments being down-tilted). To- 
rus bare. Vertex dorsum covered with narrow 
and narrow-curved p^le scales and dusky and 
pale upright-forked scales, lateral portion cov- 
ered with broad pale scales, sometimes an 
anterior spot of dusky broad scales at the 
margin of the narrow-scaled area. Thorax: 
Scutum covered with an indefinite pattern of 
narrow bronzy-brown, yellow, and whitish 
scales. Scutellum with pale narrow scales. Apn 
and ppn with narrow and narrow-curved scales, 
pale (the dorsal scales on ppn are frequently 
brownish, however). The following pleural 
areas each with a patch of broad pale scales; 
propleural, subspiracular (2 patches), post- 
spiracular, paratergite, dorsal sternopleural, 
medio-posterior sternopleural, and mesepim- 
eral; usually a very few scales on the prealar 
knob, particularly in female. Legs: Femora 
speckled with pale scales anteriorly, knee 
spots present. Tibiae may have some scattered 
pale scales anteriorly, apical pale scaling pres- 
ent on fore and hind, basal pale scaling pres- 
ent at least ventrally on all the tibiae. Fore 
and mid-tarsi with first two or three segments 
with basal pale bands (may be none on I of 
fore tarsus). Hind tarsi with basal pale bands 
on I-V. Fore and mid-tarsal claws unequal, 
each unidentate; hind claws equal, simple. 
Wings: Dark-scaled, a small basal spot of pale 
scales may be present on the costa. Abdomen: 
Tergite I with a lateral band of pale scales, 
II-VII with basal bands, those on the more 
posterior segments prolonged laterally. Stern- 
ites largely pale-scaled, dark scaling may be 
present medially. Terminalia: Basistyle with 
a basal setose plaque on mesal membranous 
surface; a rather regular longitudinal row of 
stout bristles on the sternal surface near the 
mesal margin. Dististyle with appendage dis- 
tinctly subapical. Ninth tergite concave me- 
dially. 
Female. Length of wing about 3.5 mm. 
Torus with a patch of pale scales medially. 
Differs from male chiefly as follows: Palpus 
approximately one-fifth as long as the pro- 
boscis, apex pale-scaled, may be a few pale 
Fig. 6. A. {Aedimorphus) vexans nocturnus. Male ter- 
minalia (Samar). 
scales medially. Proboscis with pale area larg- 
er and more pronounced. Mid-tarsus with 
basal pale bands on I-IV, I with some pale 
scales medially. Tarsal claws equal, fore and 
mid each unidentate, the hind simple. One or 
more of tergites IV-VII with apical pale scal- 
ing, I-VII with lateral pale bands that are 
separate from the basal bands. Wing as in 
male, or sometimes possessing considerable 
pale scaling along costa and subcosta and 
even some pale scales on vein 1. 
LARVA: Head: Antenna spiculated, tapering 
slightly from base to apex; antennal hair tuft 
with 6-10 branches, inserted at about basal 
one-third. Mouth brushes with comb-like 
tips. Hair 4 very small, with 2-6 branches; 
5 single or double (rarely triple); 6 single 
(sometimes double); 7 with 5-12; 8 single; 
9 with 1-3; 12 with 5-10; 13 with 1-3; 14 
with 1-3; 15 with 3-8; 17 and 18 single, 18 
occasionally forked; 20 with 3-8. Mentum 
with 11-16 lateral teeth. Thorax: Prothoracic 
hairs 1 and 2 single; 3 with 2-4 branches. 
Mesothoracic hair 9 with 5-9 branches; 10 and 
