342 
PACIFIC SCIENCE, VoL VII, July, 1953 
of elongate bluish-white scales merging into 
broad scales; broad orbital line of broad 
bluish-white scales, expanding gradually into 
a broad patch toward apn; four pairs of dark, 
elongate, apically forked erect scales border- 
ing the light scales mesally; large triangular 
area of dark broad decumbent scales dorso- 
centrally; two pairs of shorter slender forked 
dark occipital erect scales; inner occipital not 
seen, outer three at level of lateral expansion 
of light orbital line. Clypeus brown. Palpus 
about 0.05 of proboscis; with minute dark 
scales and numerous long dark hairs. Pro- 
boscis distinctly swollen apically; dark-scaled, 
appearing lighter ventrally; short lateral hairs 
becoming longer apically on swollen portion; 
labella light brown, moderately hairy. Anten- 
na about 1.2 of proboscis; torus light brown, 
apparently without hairs, appearing flattened 
and laterally expanded; flagellum darker, 
about six bristles in whorls; hairs and scales 
scanty basally, becoming more numerous api- 
cally; apical segments gradually lengthened, 
apical only slightly longer than penultimate. 
Thorax: Scutal integument dark brown with 
indistinct lighter longitudinal stripes; mod- 
erately dense vestiture of recumbent, narrow, 
elongate, golden-brown scales, becoming 
broader and darker in prescutellar space; 
supra-alar line of bluish-white scales as fig- 
ured, anterior scales small, moderately elon- 
gate, becoming very slender caudally; acros- 
tichals moderate, other bristles strong, all 
dark, supra-alars few in number. Scutellum 
brown; median lobe moderate with three bris- 
tles weaker than those of lateral lobes, scaled 
area extensive, scales short, rounded apically, 
projecting only slightly over base of bristles; 
lateral lobe with two very strong and two 
weak bristles, scales elongate, projecting mod- 
erately over base of bristles. Postnotum dark 
brown, lighter laterally. Pleural integument 
brown, light iridescent areas in line with light- 
scaling; scaling and chaetotaxy as figured; 
scales iridescent bluish-white, patches on apn 
and middle sternopleuron in line with light- 
scaling of head; scales of apn small and elon- 
gate anteriorly, becoming more slender and 
longer to form a projecting tuft caudally; 
those of middle sternopleuron arranged in 
about two rows, individual scales moderately 
elongate, larger than on apn, scales semierect; 
scales on lower sternopleuron practically trans- 
parent, in several irregular small patches; bris- 
tles dark, propleurals very short, light colored. 
Haltere light on base, darker on stem distally, 
knob dark-scaled. 
Wmg: Distance between crossveins about 
equal to m-cu. Vein R2 about 0.4 of R2-^3; 
vein Mi +2 about 0.7 of M beyond m-cu. Iri- 
descent bluish-white scales dorsally on caudal 
margin of R to slightly beyond arculus and 
on anterior margin also at extreme base of 
R; larger, almost circular similar scales on 
basal 0.5 of Cu; a few white scales on base 
of lA; two or three white scales at extreme 
base of C; remaining dorsal scales dark, slight- 
ly darker on anterior margin, iridescent 
bronzy; fringe light, darker on apex. 
Legs: Coxae light brown, with translucent 
scales and light hairs and bristles; trochanters 
light brown, with a few translucent scales and 
light hairs; femora dark-scaled above, lighter 
below; fore and mid tibiae entirely dark- 
scaled; hind tibia with small subapical patch 
of light scales on external face; first segment 
of front and middle tarsi dark, apical four 
segments cream-colored; hind tarsus white- 
scaled on 0.8 from base of segment 2 and 
entire segments 3-5, remainder dark. Leg I: 
femur 1; tibia about 1.0, with small apical 
tuft of specialized scales; tarsus 0.90, 0.40, j 
0.30, 0.14, 0.08. Leg II: femur 1.11, mod- | 
erately swollen basally; tibia 1.60; tarsus 0.93, j 
0.41, 0.30, 0.10, 0.09. Leg III: femur 1.20; 
tibia 1.22; tarsus 1.10, 0.64, 0.55, 0.22, 0.10. j 
Abdomen: Tergites 2, 3, and 4 each with a ! 
broad median trapezoidal patch of pure white ' 
scales, patches broader apically; other tergites ! 
dark-scaled; sternites dull white-scaled. * 
MALE (504-45).— Wing: 1.25 mm. Probos- | 
cis: 1.40 mm. Front femur: 1.45 mm. 
Generally very similar to female. Vertex of 
head more extensively dark-scaled. Proboscis ! 
