232 
Fig. 2. Tripteroides (M.) folicola Belkin n. sp. Fourth 
instar larva; terminal abdominal segments, left lateral 
aspect. Espiritu Santo, New Hebrides, wild banana leaf 
axil (K-784). 
10(1), 11(3, 4b), 12(2b), 14(1, small, thin)/ 
Segment VIII: hair 0(1, small, very thin), 
5(1, reaching about halfway down paddle), 
7(13-17b, conspicuously fringed and some- 
times secondarily branched), 14(1, small, very 
thin). Segment IX: dorsal lobe extending to 
0.3 of paddle length; hair 1 apparently not 
developed. Paddle width about 0.58 of length; 
lightly pigmented; midrib narrow, strongly 
sclerotized and pigmented a yellow brown, 
evanescent at tip; margin without distinct 
spicules; hairs absent. Female genital lobe 
extending to 0.34 of paddle length. 
larva (Holotype, K-784).— Head: 0.90 
mm. Siphon: 0.78 mm. Anal saddle: 0.24 mm. 
PACIFIC SCIENCE, Vol. IX, April, 1955 
Generally similar to melanesiensis except as 
noted. 
Head: Width about 0.97 of length, greatest 
cephalad of eye; uniformly pigmented a light 
brownish yellow; no visible integumentary 
sculpturing; mental plate very dark brown, 
medium in size, with about 20 teeth; gula 
short, very broad caudally, maxillary sutures 
diverging caudally. Hairs of head capsule 
same color as integument or slightly darker. 
Chaetotaxy as in melanesiensis except as noted; 
hair 1(1, long, moderately curved, sharply 
pointed), 4(1, slender, mesad of 1), 5(2-4b, 
slender; more caudal than in melanesiensis), 
6(2, 3b, strongest dorsal hair; more mesal), 
7(2b, slender), 8(3b, slender), 9(5, 7b, slender), 
10(1, 2b, slender), 11(2, 3b, very heavy dark 
spikes), 12 (3,4b, slender), 13(1, halfway be- 
tween 11 and 12 and mesad), l4(about 10b, 
a conspicuous stellate tuft with heavy branch- 
es), 15 (about 8b, a conspicuous tuft with long 
branches). Antenna about 0.30 of head; width 
at middle about 0.18 of length; shaft hair 
(1-A) at about 0.60 from base; pigmentation 
and sculpturing as on head capsule. Antennal 
hairs pigmented as on head capsule except 
transparent apex of 5- A; 6- A long, slender, 
reaching to apex of transparent part of 5- A; 
all single except 1-A(2b). 
Thorax: Integument, basal hair tubercles and 
hairs all light brownish yellow except larger 
hairs which are brownish; large single hairs 
without swelling near base and without dis- 
tinct fringes. Chaetotaxy as in melanesiensis 
except as follows: larger stellate hairs with 
30 to 45 slender branches arising in two or 
three distinct whorls from an expanded base, 
branches mostly sharply pointed and usually 
with minute fringes apically; metathoracic 
spine (7-T) dark brown, heavy, 2b, smaller 
branch reaching to about 0.70, often a third 
branch present; long single hairs shorter, 5-P 
only a little longer than longest branch of 
3-P; 3-P(5,7b) with branches of unequal 
length, longest longer than the slender 2-P(l). 
Abdomen: Pigmentation as on thorax; chaeto- 
taxy generally as in melanesiensis; larger stellate 
