362 
P ACIFIC SCIENCE, VoL VII, July, 1953 
Hairs: l(6b), 2(5, 6b), 3(5, 6b), 4(7b), 5(8, 
9b), 6(1), 7(6f), 8(7, 8b), 9(7, 8b), 10(5, 6b), 
11(4, 5b), 12(4, 5b). 
Abdomen: Uniformly moderately pigmented 
throughout; tergites II-VII each with a large 
posteromedian patch of distinct small spic- 
ules; tergite VIII with a similar patch antero- 
medially; tergites II-VIII with distinct poly- 
gonal reticulations, more obvious on caudal 
segments; sternites III-VIII each with exten- 
sive median patch of small spicules; sternite 
II with extensive posteromedian area covered 
with numerous short, transverse, arcuate lines 
of more heavily sclerotized spicules. All hairs 
moderately pigmented; relative position, 
length, and degree of development as figured; 
larger branched hairs without strong basal 
plates, branching taking place short distance 
from base. Segment I: hair 1 (about 17 pri- 
mary branches, moderate number of strong 
secondary branches; about 0.85 length of ter- 
gite), 2(1), 3(3b), 4(4b), 5(5, 6b), 6(4b), 7(1, 
2f), 10(4, 5f). Segment II: hair 0(1), l(8b), 
2(4, 5b), 3(5b), 4(1), 5(3, 4f), 6(2b), 7(1), 
10(3f). Segment III: hair 0(1), l(7b), 2(1), 
3(6, 7b), 4(4, 5b), 5(3, 4f), 6(2, 3b), 7(1), 
8(3f), 10(2f), 12(2, 3f), 13(1), 14(1). Segment 
IV: hair 0(1), l(6b), 2(1), 3(5, 6b), 4(6b), 
5(3f), 6(2, 3b), 7(1), 8(1, 2b), 10(1, 2f), 
12(2f), 13(1), 14(1). Segment V: hair 0(1), 
1(5, 6b), 2(1), 3(3, 5f), 4(4, 6b), 5(3, 4b), 6(2, 
3b), 7(1), 8(1, 3f), 10(4b), 12(2f), 13(1), 
14(1). Segment VI: hair 0(1), 1(4, 5b), 2(1), 
3(3, 4f), 4(4, 5b), 5(5f), 6(3b), 7(1), 8(2, 3f), 
10(2f), 12(2, 3f), 13(1), 14(1). Segment VII: 
hair 0(1), 1(3, 4b), 2(1), 3(4, 5b), 4(4, 5b), 
5(2, 4f), 6(2, 3b), 7(3b), 8(3, 4b), 10(2f), 
12(2f), 13(1), 14(1). Segment VIII: caudal 
margin of sternite truncate; hair 0(1), 4(2, 3f), 
7(2, 3b), 14(1). Segment IX: hair 1(1, 0.67 of 
segment length). Paddle as figured; lightly 
pigmented; midrib strongly sclerotized; ex- 
ternal buttress poorly defined; basal pigment 
bar distinct; external margin with small teeth 
distinct apically only; internal margin with 
even shorter teeth; hair 1 extremely weak and 
short. Genital lobe extending to about 0.3 of 
paddle; with ventrocaudal patch of strong 
spicules. Anal segment indistinct. Male gen- 
ital lobe (exuviae of allotype, 713-12) extend- 
ing to 0.3 of paddle; pair of large ventral 
lateral patches of strong spicules; anal seg- 
ment indistinct, extending just beyond apex 
of IX. 
LARVA (Fourth instar exuviae of holotype, 
713-15). —Head: 0.65 mm. Siphon: 0.70 mm. 
Anal saddle: 0.36 mm. 
Head: Width 0.7 of length; ocular bulge 
prominent; darkly and uniformly pigmented 
except for light ocular areas; integumentary 
imbricate sculpturing very prominent and uni- 
form. Labrum short, 0.25 of width at 1-C, 
anterior margin very deeply emarginate. Men- 
tal plate with 15 blunt teeth, conspicuously 
defined apically only. Hairs of head capsule 
well pigmented, conspicuous; 5, 6-C spike- 
like, very darkly pigmented, apices frayed, 
shaft minutely spiculate; 7, 11-C minutely 
barbed, other hairs simple; relative position, 
length, and degree of development as figured. 
Hair 0(1, slender, only slightly flattened, 
reaching beyond base of 1-C), 1(1, curved, 
bluntly pointed), 3(1, minute stiff spine), 
4(2b), 5(1), 6(1), 7(4b), 8(3, 4f), 9(4b), 
10(2f), ll(8b), 12(3f), 13(6, 7b), 14(1, short, 
heavily sclerotized, expanded spine), 15(3, 
4b). Antenna 0.23 of head; shaft of rather 
uniform width, but irregular; width at middle 
about 0.15 of length; uniformly darkly pig- 
mented; spicules small and sparse. Antennal 
hairs well pigmented except 5- A; relative po- 
sition, length, and degree of development as 
figured; all single; 1-A placed at middle, 
length 0.75 of antennal width. 
Thorax: All hairs and tubercles well pigment- 
ed; relative position, length, and degree of 
development as figured; apices of long hairs 
frayed or blunt, appearing as if broken off; 
barbs when present numerous, slender, and 
lightly pigmented; hair 5-P about 0.8 of head 
length. Prothorax: hair 0(15, l6d), 1(1), 2(1), 
3(broken off), 4(2b), 5(1), 6(1), 7(2b), 8(8, 
9b), 9(4b, equal), 10(1), 11(2, 3b), 12(1), 
I4(l4b, large symmetrical semilunar expand- 
