12 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 125 
two apical teeth on the ventral half of the tenth tergum, and the 
long apicomesal process of the clasper. 
The larvae and pupae are attributed to this species on circumstantial 
evidence. Adults of two species of Chimarra have been taken on 
Dominica and the adults and larvae of C. antilliana have been defi- 
nitely associated by means of metamorphotypes. By elimination, 
therefore, the larvae herein described must be those of C. dominicana. 
Apu.tr.—Length of forewing 4 mm. Color fuscus, coxae and femora 
slightly paler. Vein M in hindwing with 2 branches. Male genitalia: 
eighth tergum with a broad mesal exicision, lateral angles of which are 
developed into elongate points; ninth sternum with a short, terete 
apicomesal process; tenth tergum divided mesally, each side divided 
again into dorsal and ventral lobes; dorsal lobe rodlike, ventral lobe 
widened apically with two apicolateral teeth; cercus elongate; clasper 
slender and elongate, with a long apicomesal process; aedeagus 
(partially everted) with a pair of small dark apicoventral spines, 
and a longer pair of spines, a basal ring and rod with a pair of lateral 
wings. Female genitalia: eighth segment without anterolateral proc- 
esses; posterior margin with a rounded lateral lobe bearing three 
large setae, ventral surface truncate; ninth tergum with a short 
anteroventral process, and a pair of dorsoapical lobes; bursa copulatrix 
consisting of several elongate sclerotized straps. 
Larva.—Length to § mm. Sclerites pale yellowish brown, posterior 
margin of pronotum black. Anterior margin of frontoclypeus with a 
slightly asymmetrical emargination that bears a short, pointed 
process centrally. Left mandible with a short pointed molar tooth, 
right mandible with a small molar area. 
Pupa.—Length 5 mm. Mandibles with inner margin serrulate, 
with 2 large teeth. Apex of abdomen with a few bristly hairs. 
MareriaLu.—Holotype, male: Dominica, .4 miles east Pont Casse, 6 May 
1964, O. S. Flint, Jr.. USNM type 69880. Allotype, female: 2.2 miles east of 
Pont Casse, 11 May 1964, O. 8. Flint, Jr. Paratypes: Pont Casse, .5 miles south, 
22-24 July 1963, O. S. Flint, Jr., 10749; same, but 8 Apr. 1964, 39; same, but 
23 Apr. 1964, 1o°1?; same, but 17 June 1964, 19; Pont Casse, .4 miles east, 
21 Apr. 1964, O. 8. Flint, Jr., 29; same, but 27 Apr. 1964, 5719; same, but 
6 May 1964, 10759; same, but 23 June 1964, 29; Pont Casse, 1.3 miles east, 
29 Apr. 1964, O. 8. Flint, Jr., 19; same, but 12 May 1964, 19; same, but 18 
May 1964, 19; same, but 11 June 1964, 19; Pont Casse, 2.2 miles east, 1 May 
1964, O. S. Flint, Jr., 1c7; same, but 14 Apr. 1964, 19; Pont Casse, 27-30 Nov. 
1964, P. J. Spangler, 19. Other: D’leau Gommier, 27 Apr. 1964, O. S. Flint, Jr., 
4 larvae, 2 prepupae, 1 pupa. 
Biotoay.—This species has been taken at elevations of around 
2000 feet near Pont Casse and on the central divide. Larvae believed 
to be of this species were taken in a small, rapid stream on the under- 
side of rocks in the bottom gravel. 
