360 
PACIFIC SCIENCE, VoL VII, July, 1953 
and mesally; flagellum darker; whorls short, 
with 6 bristles; hair and scales scanty basally, 
more numerous apically; apical segment with 
long light hairs, about 1.3 of penultimate. 
Thorax: Integument extensively white lateral- 
ly as indicated on figure, boundary of white 
integument and scales indicated by stippling. 
Median portion of scutum with brown inte- 
gument and dense vestiture of recumbent nar- 
row, elongate, bronzy-brown scales; lateral 
portions including a broad anterior border 
white-scaled; anterior acrostichal area with a 
patch of small, broad, recumbent white scales; 
lateral border in front of scutal angle with 
scaling denser than shown on figure; supra- 
alar scales elongate becoming very slender 
and forming a tuft in front of wing root; 
acrostichals unusually strong, dorsocentrals 
fewer than usual, supra-alars few in number, 
all bristles dark. Scutellum dark brown; me- 
dian lobe short, partially denuded in speci- 
men, scales short, rounded apically, projecting 
slightly over base of the three bristles; lateral 
lobe with three heavy bristles, longer than 
those on median lobe, scaling elongate, pro- 
jecting strongly over bases of bristles. Post- 
notum dark brown centrally, cream-colored 
laterally. Pleural integument extensively white 
as indicated on figure, lower part brown; scal- 
ing and chaetotaxy as figured; apn entirely 
white, with elongate white scales; ppn with 
scattered small white scales, almost circular 
in outline; stp extensively scaled, scales of 
upper part white, dark on lower part, line of 
separation very sharp; larger bristles dark, 
smaller light, propieurals minute. Haltere 
white on base, darker on upper part of stem, 
knob dark-scaled. 
Wing: Distance between crossveins about 1.7 
of m-ciL Vein R2 about 0.4 of R2+3; vein M1+2 
about 0.82 of M beyond m<u. Conspicuous 
black and white pattern of scaling on dorsal 
surface; anterior border dark, median and pos- 
terior part white with a subapical transverse 
dark band, apex white beyond base of cell 
R2; C dark except at base on caudal margin 
and at apex; R white at base for 0.3 of wing 
length, then dark to 0.42, followed by white 
to 0.56 and then dark to level of base of cell 
R2; a subapical dark irregular transverse band 
including C, R, portion of R2+3 equal to cor- 
responding dark area of Ri, five scales on 
R4+5 at 0.64-0.76, four scales on M at 0.65- 
0.75, five scales on Cui at 0.63-0.74, Cu2 from 
0.65 to apex; two dark scales at preapical curv- 
ature of lA. Fringe white. 
Legs: Coxae and trochanters brown, scales not 
seen, larger bristles dark, smaller brown; fe- 
mora dark-scaled, light ventrally; tibiae dark, 
appearing paler ventrally in some lights; first 
two segments of front and middle tarsi dark, 
apical three segments lighter; hind tarsus with 
apical 0.6 of segment 3 and entire segments 
4 and 5 white-scaled, remainder dark above, 
lighter below. Leg I: femur 1; tibia about 1.0; 
tarsus 0.78, 0.40, 0.23, 0.14, 0.07. Leg II: 
femur 1.10, strongly swollen basally; tibia 
1.43; tarsus 0.90, 0.42, 0.30, 0.10, 0.08. Leg 
III: femur 1.03; tibia 1.20; tarsus I.06, 0.57, 
0.43, 0.23, 0.10. 
Abdomen: Tergite 1 almost entirely white- 
scaled; 2-5 each with apical transverse white 
band, broader in center where it occupies 
about 0.4 of segment; 6 and 7 with a few 
apical white scales; remainder of tergites dark- 
scaled; sternites with dull white scales. 
MALE (713-12).-— Wing: 1.40 mm. Probos- 
cis: 0.98 mm. Front femur: 0.90 mm. 
Generally very similar to female. Proboscis 
more strongly swollen at extreme apex. Fla- 
gellar whorls about 0.45 of flagellum, about 
20 bristles in whorl; basal flagellar segments 
short, basal part slightly swollen; penultimate 
2.0 of preceding, apical equal to penultimate. 
Leg I: femur 1; tibia 1.0; tarsus 0.63, 0.36, 
0.26, 0,14, 0.08; claws equal, one broadened, 
other slender. Leg II: femur 1.13; tibia 1.50; 
tarsus 0.90, 0.41, 0.27, 0.10, 0.10, segment 4 
with median ventral lobe projecting below 
5, segment 5 with dorsoapical lateral lobes; 
claws unequal, enlarged, smaller about 0.5 
of larger, both strongly curved. Leg III: femur 
1.13; tibia 1.30; tarsus 1,15, 0.60, 0.45, 0.25, 
0.09; claws as on foreleg. Abdominal tergite 
