NO. 3665 CADDISFLIES—FLINT 5l 
as wide as scutum, short and rectangular. Wings narrow, evenly 
acuminate. 
Type-species: Bredinia dominicensis, new species. 
The relationship of the genus is rather obscure. It would seem to 
be most closely related to Neotrichia as is shown by the presence of 
ocelli, minute size, and wing shape. The spur count is the same as is 
found in Mayatrichia, a genus closely related to Neotrichia; however, 
the structure of the thoracic notae (almost exactly as shown in Ross, 
1944, fig. 438) is totally different from Neotrichia or Mayatrichia in 
which the mesoscutellum is entire and the metascutellum trianguloid. 
It may well be that the genus is related to Alisotrichia as is suggested 
by the structure of the thorax and dorsolateral rods of the male 
ninth segment. The discovery of the larval stages will be necessary 
to settle the exact relationship of the genus. 
It is with great pleasure that I name this genus for Mr. J. Bruce 
Bredin. 
Bredinia dominicensis, new species 
Figures 130-135 
Since this is the only known species in the genus, it is not possible 
to point out specific characters. 
Apu.t.—Leneth of forewing 1.5 mm. Color silvery gray, forewing 
with bands of white hair apically and basally. Male genitalia: eighth 
sternum divided midventrally; ninth segment narrow, oblique, lateral 
halves divided ventrally by the claspers, anterior margin with long, 
slender supports dorsolaterally; tenth tergum a large membranous 
lobe; clasper rather quadrate, with narrow dorsal and ventral ridges, 
a long seta from ventral ridge; subgenital plate elongate, rectangular, 
slightly widened apically; aedeagus tubular, apex flattened, tridentate, 
with a central tubule in apical fourth. Female genitalia: seventh 
segment with apical margin squarely truncate; eighth segment simple, 
with anterolateral rods, and a row of setae along posterior margin; 
ninth segment elongate with anterolateral rods; tenth segment 
trianguloid, with apical papillae; bursa copulatrix with a long baso- 
mesal process and a pair of basolateral tubules, a central complex, 
apically with a pair of dark oval sclerites. 
LARVA, PUPA, AND CASE.—Unknown. 
MateErr1aLt.—Holotype, male: Dominica, Hodges River mouth, swamp forest, 
27 Feb. 1965, W. W. Wirth, USNM Type 69900. Allotype, female: same data. 
Paratypes: same data, 10°; Fond Figues, 3 Feb. 1965, W. W. Wirth, 10; same, 
but 18 March 1965, 2°. 
Biotogy.—The adults have been taken only near the larger lowland 
rivers. 
