244 
PACIFIC SCIENCE, Vol. IX, April, 1955 
1944. Tripteroides (M.) rotumana. Lee, Atlas 
Mosq. Larv. Australasian Reg. p. 23. 
1944. Tripteroides rotumana . Knight, Bohart 
and Bohart. Keys Mosq. Australasian 
Reg. pp. 19, 67. 
1946. Tripteroides (AL) rotumana. Lee, Linn. 
Soc. N. S. W., Proc. 70: 267. 
Diagnosis 
adults. — Abdominal tergites III— VII with 
basal lateral creamy spots, larger and just 
visible dorsally on distal segments; lower 
sternopleural bristles absent (Edwards, 1929). 
pupa. — Pigmentation light except for dark 
brown cephalothorax, base of abdomen and 
intersegmental areas; trumpet uniformly dark; 
integumentary abdominal sculpturing distinct 
only on darker areas. Trumpet nearly parallel 
sided, index 4 or more; width at basal 0.1 
nearly equal to that at middle; pinna about 
0.20. Hairs 5-IV-VI(l); 2-II-VII(l); l-II(ir- 
regularly dendritic); l-IV-VI(3-5b). Paddle 
index about 1.66; midrib narrow; inner and 
outer margins with one distinct dorsal row 
of long spicules. 
larva. — Head capsule bright yellowish 
brown; integument of thorax and abdomen 
light yellowish brown. Head width about 1.04 
of length, greatest caudad of eye; hairs 
14-C(1, thin), 15-C(8-13b, thin, secondarily 
branched). Thorax and abdomen with con- 
spicuous, thin, moderately or poorly devel- 
oped stellate hairs. Thoracic hairs: l-P(5-9b, 
shorter than 3-P); 2-P(l, longer than 3-P), 
3-P(2,3b), 5-P(l, less than twice as long as 
longest 3-P branch), 7-T(2b, hairlike not 
spinelike), 9-T(ll-13b), 13-T(10, lib; large 
and with uneven branches). Abdominal hairs: 
0-II-VII, 2-1— VIII, 14-II-VI (stellate tufts); 
14-VII(1, small or minute); 8-VII(3b; small, 
not stellate); l,5,9,l°T3-I-VII(steilate; usu- 
ally 5-7b). Comb scales about 20; blunt and 
distinctly fringed apically; minutely fringed 
laterally. Siphon index about 2.3; pecten teeth 
(about 7 on each side; narrow, sharply pointed 
and often with minute spicules laterally; about 
as long as or longer than longest comb 
scale); hair l(4b), la(usually 10, mostly 3b), 
2a(usually 5, mostly 3b). Anal segment: dor- 
sal gill about 1.2 of saddle; ventral gill about 
0.8 of saddle; hair 1(1, heavy), 2(8b), 4(4b, 
about 3.1 of saddle). 
Description 
adults.— Apparently very similar to mela- 
nesiensis except for diagnostic characters. I 
have not seen any specimens. 
pupa.— Abdomen: about 2.6 mm. Trum- 
pet: 0.32 mm. Paddle: 0.43 mm. 
Cephalothorax: Moderately blackish brown, 
darker on wing case. Trumpet uniformly dark 
blackish brown; length about 4.2 median 
width; basal 0.12 gradually narrowed to ex- 
treme base which is about 0.3 of median 
width; beyond basal 0.12 parallel sided except 
for slight constriction at about 0.5; inner wall 
Fig. 6. Tripteroides (M.) rotumana (Edwards, 1929). 
Fourth instar larva; terminal abdominal segments, left 
lateral aspect; considerably distorted through com- 
pression. Rotuma (W. D. Carew). 
