6 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 125 
ADULTS 
1. Mesoscutellum with posterior portion forming a triangular, flat area with a 
vertical posterior margin; forewing length 4 mm or less . HyproprirLipAE 
Mesoscutellum rounded, without vertical margins; forewing length 3 mm 
OF, MOLE? 5.7% es WS sxe See See al er ee fel 2m ol eye ek) ce oo ee 
2. -Ocelli;present 2\\. tes ne os cs ae aS eete ere at ee ee 
Ocelli absent ..... sel! ie RD 
3. Maxillary palpi with fifth Sprracing 2 or 3 Paes as fons as aren ; 
PHILOPOTAMIDAE 
Maxillary palpi with fifth segment barely longer than fourth . ..... 4 
4. Foretibia with apical spur prominent ..... .. . . RHYACOPHILIDAE 
Foretibia with apical spur absent or hairlike. . . . . . GLOSSOSOMATIDAE 
5; “Midtibia: with preapical’spur’ 29293) 2 24s) > os ete ee) eee 
Midtibia without preapical spur. . . . id) 
6. Terminal segment of maxillary sige elongate, rN ponent with suture-like 
cross striae. . .. BRP Ne ith 
Terminal segment of pal Roan same lenin as cprcnedine scemenel without 
cross striae. .. . Peo OweOer Ge 
7. Mesoscutum with a pair of staal etal varie: forctibia often Tate a preapical 
SPUR wien .. . « 6 PSycnomyiman 
Mesoscutum Tisha Rotal rariae fereuibinG never ouatn a preapical spur . 
HyYDROPSYCHIDAE 
8. Antennae much longer than wings. ....... ... . . LEPTOCERIDAE 
Antennae about length of forewings. . .... .. . . HELICOPSYCHIDAE 
9. Mesoscutellum small and rectangular. . . . . . . . . CALAMOCERATIDAE 
Mesoscutellum large and domelike. . ..... =... . . ODONTOCERIDAE 
Family GLOSSOSOMATIDAE 
Although the family is found over most of the world, the Pro- 
toptilinae, to which all the antillean species belong, is exclusively of 
New World distribution. The two genera known from the Greater 
Antilles seem to belong to a different section of the subfamily from 
where Protoptila belongs. 
The larvae of the family all construct cases of small sand grains 
shaped like a turtle’s shell. At pupation the ventral strap is cut away 
and the domelike dorsal covering is firmly anchored to the substrate, 
usually a rock, and a separate silken inner cocoon is spun to enclose 
the pupa. 
Genus Protoptila Banks 
Protoptila Banks, 1904, p. 215. [Type-species: Beraea? maculata Hagen, 1861, 
by original designation.] 
The genus Protoptila, which contains many species and is found 
throughout the New World, is here recorded from the Antilles for the 
first time. 
Preliminary descriptions of the larvae have been given by Ross 
(1944) and Flint (1963). The immature stages of the species described 
herein agree structurally with the other known species of the genus. 
