NO. 3665 CADDISFLIES—FLINT 19 
Xiphocentron species 
I list here the immature stages of this genus that I have collected 
on the Lesser Antillean islands. Characters have not been found that 
will serve to separate the larvae of the various species; therefore, they 
are all listed together and described as a unit. 
Larva.—Length to 8 mm. Sclerites pale yellow, oral margin of 
head capsule darker. Structure apparently identical to other described 
species. 
Pupa.—Unknown. 
Casre.—A long silken tube attached to the substrate, generally a 
rock, often in great numbers crisscrossing the rocks both above and 
below the water line. 
Matertat.—Dominica, Pont Casse, .5 miles south, 22-24 July 1963, O. S. 
Flint, Jr., 4 larvae; same, but 15 June 1964, 1 larva. Springfield Estate, .5 miles 
east, 21 July 1963, O. S. Flint, Jr., 1 larva. Pont Casse, 2.2 miles east, 15 June 
1964, O. S. Flint, Jr., 2 larvae. Fond Figues, 6 April 1964, O. S. Flint, Jr., 2 
larvae. Mannett Gutter, 23 April 1964, O.S. Flint, Jr., 2 larvae. St. Lucia, 
Vergallier River, near Marquis, 31 July 1963, Flint and Cadet, 2 larvae. 
Genus Cernotina Ross 
Cernotina Ross, 1938, p. 136. [Type-species: Cernotina calcea Ross, 1938, by 
original designation.]} 
The genus is widely distributed in North and Central America and 
in the Greater Antilles. 
The immature stages of the genus still have not definitely been 
correlated with the adult. It seems probable, however, that the larvae 
and pupae described by Flint (1964b) from Puerto Rico as an unknown 
Polycentropodinae belong to a species of this genus. 
Key to Species 
ADULTS 
Ventrolateral lobe of cercus of male with tip bent sharply dorsomesad. C. cadeti 
Wensrointeral lobe of cercus spinelike . 2.050. 2 ee ee eel tek) C. lutea 
Cernotina lutea new species 
Figures 31-34 
Cernotina lutea is a member of the calcea section of the genus closest 
to C. ohio Ross. From this species it differs in the elongate mesal lobe 
and in the long ventrolateral spines of the cerci. 
Apuutt.—Length of forewing 3.5-4 mm. Color yellowish brown, a 
slightly paler band of hairs mesally on head and thorax. Male genitalia: 
ninth segment expanded basoventrally; tenth tergites elongate, conical, 
