Aedes of the Philippines — Knight AND Hull 
465 
Abdomen: Tergites dark dorsally, silvery lat- 
eral patches visible above on V-VII: lateral 
margin of I entirely silvery, of II-VII broadly 
white basally. Sternites II-VII basally pale, 
apically dark, segment VIII retractile and hid- 
den in VII. 
LARVA: Unknown. 
BIONOMICS: The single known specimen 
was taken in a mosquito trap. 
distribution: Known only from the single 
type specimen. Luzon: Llavac, Infanta, Taya- 
bas Prov. 
DISCUSSION: As Baisas pointed out in the 
type discussion, this species has a strong re- 
semblance to members of Group E {alholinea- 
///j-group) of Stegomyia but is separable from 
them on the possession of paratergite scaling 
and in being brownish rather than black in 
general appearance. 
In a footnote to the type description, Baisas 
stated that, subsequent to the preparation of 
the description, two males and several females 
of a closely similar species were received from 
Mt. Apo, Davao, Mindanao (Hoogstraal). In 
these, the hind tarsi had I with basal one- 
fifth white, II with the basal one-third white, 
III all white except for a narrow ring at apex, 
IV-V all dark (paler under certain lights). 
The male palpi were slender throughout, with- 
out hairs, and upturned apically. The male 
terminalia was that of an Aedimorphus. 
Until the male terminalia of these species 
are available for study, it will not be definitely 
possible to place them, but from the available 
information it seems likely that they repre- 
sent a separate group near Group A {apico- 
annulatus-gtoup) . This group is unusual in 
that the included species are all tree-hole 
breeders. 
Subgenus Banksinella Theobald 
1907 . Banksinella Theobald, Mon. Cul. 4: 
468. Genotype: luteolateralis Theobald 
(Africa). 
ADULT: Male palpi longer than proboscis 
by one-half or more of segment IV ; segment 
V so reduced as to appear absent, segment 
IV strongly upturned, numerous ventrally di- 
rected long hairs arising apically on III and 
all along IV. Vertex dorsum and scutellum 
narrow-scaled. Dorsocentral and acrostichal 
bristles present (sparse and short) . Paratergite 
bare. Lower mesepimeral bristles present or 
absent. Fore and mid-tarsal claws of male un- 
equal, each unidentate; hind equal, uniden- 
tate or simple. Tarsal claws of female equal, 
each unidentate, hind simple in lineatopennis. 
Terminalia: Basistyle with a distinct basal lobe. 
Dististyle inserted subterminally, with or with- 
out articulated appendage. Claspettes absent. 
Mesosome divided into lateral plates, each of 
which are crenulated or toothed laterally. 
LARVA: Similar to Aedimorphus in having the 
distal pecten teeth more widely spaced but 
differing in lacking an acus on the anal plate. 
Antennal hair tuft with 8-11 branches. Head 
hair 4 with 5-9 branches; 5 with 4-7; 6 with 
3-6. Comb with 6-12 large teeth in an irre- 
gular row, each tooth with a sharp spine and 
basal fringe. Siphon with an attached acus; 
12-24 pecten teeth, each with 1 or 2 strong 
basal denticles except for the distal 2-3 which 
may be simple, these latter more widely spaced. 
Anal plate complete, or narrowly incomplete; 
ventral brush of 12-16 tufts, basal 3-7 tufts 
off the barred area. Habitat chiefly rain-filled 
temporary pools. 
DISTRIBUTION: Two species, Edwards 
and imprimens Walker, are Australasian, with 
the latter also occurring in the Philippines. 
One species, lineatopennis (Ludlow), extends 
from the Ethiopian region into the Australa- 
sian and Oriental regions. The remaining spe- 
cies are Ethiopian. 
SYSTEMATICS: Closely related to the sub- 
genus Aedimorphus, differing most markedly 
in the structure of the male palpi. 
Aedes (Banksinella) imprimens 
(Walker) 
Figs. 8, 9 
1861. Culex imprimens WdXkts, Linn. Soc. Lon- 
