34 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 125 
8. Male with basal antennal segment enlarged, covering face, 2 ocelli 
Alisotrichia 
Male with antennae unmodified, 3 ocelli . . . .... =... . Bredinia 
9. Hindtibia with only a preapical spur ......... ... . Neotrichia 
Hindtibia with 2 preapical spurs .. . a sh gw oe 6 ey eRe LO) 
10. Metascutellum narrow, almost Gnadrane nis ~ 4. « « . » oe Alisotrichia 
Metascutellum wider, distinctly triangular. . ...... . . Oxyethira 
Genus Zumatrichia Mosely 
Zumatrichia Mosely, 1937, p. 187. [Type-species: Zumatrichia filosa Mosely, 
1937, by original designation.] 
The genus has heretofore been known only from several Mexican 
species. The genus is closely related to Leucotrichia, but the males 
differ greatly in the modified basal antennal segment, in the possession 
of only two ocelli, and in a different style genitalia. 
The immature stages of the genus are herein described for the first 
time, and as expected they show a close relationship to those of 
Leucotrichia. The larvae of Zumatrichia are distinguished by the short, 
broad, setae on the eighth and ninth terga. 
Key to Species 
ADULTS 
Color gray, mottled with grayish green; forewing of male unmodified. 
Z. antilliensis 
Color, brown; forewing of male with a basal patch of modified setae. 
Z. anomaloptera 
Zumatrichia antilliensis, new species 
Figures 75-79, 86, 99-103 
This species has been the most commonly encountered trichopteran 
on the island of Dominica, and it has also been taken on Guadeloupe, 
St. Lucia, and Grenada. It is related to Z. galtena Mosely from Mexico 
but is distinguished by the dorsal process of the clasper not being 
digitate apically and by the long hooked ventral process of the 
aedeagus. 
Aputt.—Lenegth of forewing 3 mm. Color intermingled patches of 
eray and gray green. Male genitalia: eight sternum with ventrolateral 
angles slightly produced; ninth segment with anterolateral angles pro- 
duced as narrow lobes; cercus, rodlike, with a single long apical seta; 
clasper with a long basodorsal process, slightly sinuate apically; 
ventral portion with a slender apicolateral lobe; tenth tergum divided 
into platelike lateral lobes, rounded apically, with a midventral 
tooth; aedeagus with a middorsal process apically, a pair of lateral 
spines, and a pair of appressed, hooked, ventral processes; a complex 
