NO. 3665 CADDISFLIES—FLINT 43 
Casr.—Width 1 mm, length 2 mm. Oval, silken, appressed to 
substrate. Consisting of an outer flange attaching inner cocoon to rock. 
MaTeERIAL.—Holotype, male: Dominica, D’leau Gommier, 15 Feb. 1965, 
W. W. Wirth, USNM type 69894. Allotype, female: Pont Casse, 2.5 miles east, 
16 Jan. 1965, W. W. Wirth, stream margin. Paratype: Pont Casse, .4 miles east, 
6 May 1964, O. S. Flint, Jr., 1c. Other: D’leau Gommier, 27 April 1964, O. S. 
Flint, Jr., 1 larva, 2 pupae, 1o7 19 metamorphotypes. 
Brotoay.—The immatures of this species were collected on large 
stones kept wet by the cascade of a small mountain stream at the 
place where it emerged from the forest. The habitat is very similar to 
that of the type-species on Puerto Rico. 
Alisotrichia lobata, new species 
FiaurEs 95-98 
The males of this species are easily recognized by the large dorso- 
lateral lobe of the eighth sternum and the long lateral process of the 
ninth segment. 
Aputt.—Length of forewing 1.5 mm. Color grayish, forewing with 
alternating bands of silver and fuscus hairs. Corresponding closely to 
type-species in structure of head and appendages. Male genitalia: 
eighth tergum narrow, sternum greatly prolonged apicoventrally, with 
a large dorsolateral lobe, apicoventral angles produced into a sharp 
spine, midventrally with narrow incision; ninth segment with long, 
anterolateral, rodlike processes, divided dorsally on midline, with 
posterolateral swordlike processes; tenth tergum with paired, dorsal, 
straplike sclerites, with ventrolateral margin sclerotized, ventrally 
with a complex of sclerites; aedeagus tubular, with base slightly en- 
larged. Female genitalia: seventh tergum with a narrow, apicomesal, 
triangular sclerotization; eight and ninth segments with long antero- 
lateral rods; tenth segment with long apical papillae. 
LARVA, PUPA, AND CASE.—Not known for certain, but see following 
species. 
MateriAu.—Holotype, male: Dominica, Clarke Hall, malaise trap, 11-20 Jan. 
1965, W. W. Wirth, USNM Type 69895. Allotype, female: Clarke Hall, cocoa 
trail, 18 Jan. 1965, W. W. Wirth. Paratypes: same data as allotype, 29 ; Fond 
Figues, 3 Feb. 1965, W. W. Wirth, 1c. 
Brotogy.—The few adults of this species have been taken in 
proximity to the larger lowland rivers. 
Alisotrichia species 1 
Figure 104 
There is a single larva of a species closely related to A. orophila 
in the collections. The larva is a bit larger and the thoracic notae 
