326 
branches; hairs moderately long. Thoracic 
hairs 9, 10-P well developed; 9-M, T, 8-M, 
and 7-T long multiple, barbed; 4-P 2b; 7-P 
single; 14- P single; all hairs apically attenu- 
ated. Abdominal hairs 6-III-VIII stellate, 
much shorter than 6-1, II, without tubercles; 
l-I, II 4-6b; 6-1, II 2b, branches uneven; 
6-III, IV 5-7b. Comb plates separate; scales 
fringed. Siphon index about 4.0; pecten ex- 
tending to 0.5; pecten teeth fringed apically 
and laterally; hair 1-S moderate, 7-1 lb, un- 
even; valves short; hair 9-S a slender hair, 
13-S moderate, twisted at base. Anal segment 
short; saddle margin with small apical spi- 
cules; gills about 0.3 of saddle length, round- 
ed; hair 1-X 6-lOb, long; 2, 3-X 2b; 4ab-X 
2, 3b. 
Description 
FEMALE (969-109).— Wing: 1.70 mm. Ab- 
domen: 1.20 mm. Proboscis: 1.17 mm. Front 
femur: 1.33 mm. 
Head: Frontal tuft not developed, a few slight- 
ly elongate azure-blue scales projecting an- 
teriorly; orbital line of azure-blue scales broad, 
slightly expanded toward apn; decumbent 
dark scales iridescent bronzy; two pairs of 
erect, slender, apically forked, dark vertical 
scales; three pairs of slightly shorter, similar 
erect occipital scales; occipitals 1:3. Clypeus 
brown. Palpus about 0.06 of proboscis; scales 
inconspicuous, hairs very conspicuous, over 
2.0 length of palpus. Proboscis slightly swol- 
len apically; dark-scaled, lighter below; hairs 
short and inconspicuous except at apex; label- 
la lighter, moderately hairy. Antenna about 
1.2 of proboscis; torus creamy except for 
brown dorsomesal area, with short hairs and 
several minute, outstanding, dark broad scales; 
base of first flagellar segment creamy, re- 
mainder very dark brown; flagellar whorls 
with 6 long bristles; penultimate segment 
slightly longer than preceding, apical about 
1.2 of penultimate. 
Thorax: Scutal integument rather uniformly 
brown; dense vestiture of recumbent, narrow, 
curved, golden-brown scales; broad patch of 
PACIFIC SCIENCE, Vol. VII, July, 1953 
semierect azure-blue scales in front of wing 
root, scales short anteriorly becoming elon- 
gate and lanceolate caudally and forming a 
conspicuous tuft; acrostichals moderate, other 
bristles strong, all dark. Scutellum brown; 
median lobe moderately prominent, with 
three strong bristles; lateral lobe with one 
weak and two strong bristles; scales dark, 
bronzy brown, dense. Pleural integument dark 
brown in middle, lighter in line with scaling 
and above and below; scaling and chaetotaxy 
as figured; apn with large patch of oval azure- 
blue scales, not forming a tuft caudally; stp 
with a large transverse patch of very broad, 
almost circular, azure-blue appressed scales; 
small patch of translucent light scales on low- 
er stp; bristles dark, propleurals weak. Haltere 
light on base and lower part of stem, dark- 
scaled on upper part of stem and knob. 
Wing: Distance between crossveins about 
equal or slightly less than m-cu. Vein R2 about 
0.30 of R2-1-3; vein Mi-}-2 about 0.68 of M 
beyond m-cu. All scales dark, fringe lighter. 
Legs: Coxae and trochanters creamy; scales 
light and translucent, with a faint bluish iri- 
descence. Femora dark above, lighter ventral- 
ly, creamy at base. Tibiae and tarsi dark above, 
somewhat lighter below. Leg I : femur 1 ; tibia 
1.0; tarsus 0.63, 0.43, 0.30, 0.13, 0.09; claws 
very large. Leg II: femur 1.07; tibia 1.43; 
tarsus 0.80, 0.40, 0.26, 0.12, 0.10. Leg III: 
femur 1.11; tibia 1.25, enlarged apically; tar- 
sus 1.05, 0.62, 0.42, 0.25, 0.10, segment 1 with 
a small tuft of scales at base ventromesally. ! 
Abdomen: Tergite 1 with small lateral patch j 
of white scales; tergites 2-7 with inconspic- | 
uous apicolateral patches of scales, invisible ^ || 
from above, on proximal segments patches ,| 
reach to base of segments, on distal restricted || 
to apical margin; remainder of tergites dark- j 
scaled. Sternites light cream color, almost j 
white. [ 
MALE (969-102).— Wing: 1.50 mm. Pro- !j 
boscis: 1.16 mm. Front femur: 1.25 mm. i 
Generally very similar to female. Proboscis } 
very strongly swollen apically, conspicuous 
ventral light patch on swollen part. Orbital | 
