NO. 3665 CADDISFLIES—FLINT 13 
Chimarra antilliana, new species 
Figures 22-26 
This species is clearly related to the following new species as is 
shown by the structure of the tenth tergum and aedeagus. It may be 
recognized by the more elongate, narrower clasper, which bears sub- 
apically a thin mesal shelf. 
Aputr.—Length of forewing 4-5.5 mm. Color fuscus; coxae and 
femora pale brown. Vein M in hindwing with 3 branches. Male geni- 
talia: eighth tergum unmodified; ninth sternum with a short terete 
apicomesal process; tenth tergum with a dorsomesal flaplike process, 
lateral lobe with a long straplike apicoventral process and a short 
apicodorsal one; cercus short, rounded; clasper elongate, straight, 
and barely widened basally in lateral aspect; in ventral aspect, 
bowed outwardly, with a narrow shelflike mesal projection sub- 
apically; aedeagus with 2 internal spines, a scabrous pouch with a 
darkened rounded lobe, and basal rod and ring. Female genitalia: 
eighth segment completely divided dorsomesally, with anterolateral 
processes, posterior margin with a few large setae; ninth tergum with 
long anterolateral processes; bursa copulatrix consisting of a heavily 
sclerotized ring basally, and apically of a nearly vertical plate capped 
dorsally by a hoodlike structure. 
LarvaE.—Length to 9 mm. Sclerites yellowish brown, posterior 
margin of pronotum black. Anterior margin of frontoclypeus asym- 
metrically emarginate. Left mandible with enlarged molar area and 
blunt tooth, right mandible with arcuate molar area and basal tooth. 
Pura.—Length 4-5-mm. Mandibles with inner margin serrulate, 
with a large subapical, bifid tooth. 
Marertau.—Holotype, male: Dominica, Mannett Gutter, near Clarke Hall, 
4 April 1964, O. S. Flint, Jr. USNM Type 69881. Allotype, female: same data. 
Paratypes: same data, 407; same, but 10 Mar. 1965, W. W. Wirth, 1c; Clarke 
Hall, 11-20 Jan. 1965, W. W. Wirth, 107; same, but 18-19 Jan. 1965, J. F. G. 
Clarke, 22; same, but 27 Jan. 1965, 12; same, but 1-10 Feb. 1965, W. W. 
Wirth, 17; same, but 10 Feb. 1965, J. F. G. Clarke, 10; same, but 11-20 Feb. 
1965, W. W. Wirth, 19 ; same, but 21-28 Feb. 1965, 1c; same, but 21-31 Mar. 
1965, 3c° 42 ; same, but 31 Mar. 1965, D. R. Davis, 16; same, but 1 June 1964, 
O. S. Flint, Jr., 1; same, but 9 June 1964, 19; same, but 3-8 Oct. 1964, P. J. 
Spangler, 19; same, but 1-7 Dec. 1964, 1% 59; Fond Figues, 23 Jan. 1965, 
W. W. Wirth, 1? ; same, but 9-13 Mar. 1965, 17 1692; same, but 16-17 Mar. 
1964, D. F. Bray, 2c’ 59; same, but 6 Apr. 1964, O. S. Flint, Jr., 60% 63 9 ; 
same, but 7 May 1964, 707, 449; same, but 1 May 1965, D. R. Davis, 1c 29; 
same, but 10 June 1964, O. S. Flint, Jr., 42% 2219; same, but 1 Dec. 1964, 
P. J. Spangler, 1 9 ; Pagua Bay, 19 Nov. 1964, P. J. Spangler, 1; Cabrit Swamp, 
3 Nov. 1964, P. J. Spangler, 19; Clarke Hall, 1 mile east, 4 Apr. 1965, D. R. 
Davis, 136° 29; same, but 19 Apr. 1965, 5c’ 29; same, but 22 May 1965, 40°; 
Layou Valley (upper bridge), 22-25 July 1963, O. S. Flint, Jr., 8c"; Springfield 
Estate, 20-26 July 1963, O. S. Flint, Jr., 1%; Mahaut, Oct. 1966, E. L. Todd, 
