46 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 125 
Alisotrichia wirthi, new species 
Fiaures 115-118 
This species is closely related to the preceding, from which it is 
easily separated by the very different claspers and tenth tergum. 
Aputt.—Length of forewing 2.56 mm. Color in alcohol uniformly 
fuscus. Basal antennal segments unmodified. Ocelli 3. Maxillary 
palpus with 2 basal segments very short, apical segments long, each 
slightly longer than preceding. Spurs 0, 3, 4. Abdominal sterna 
lacking processes. Male genitalia: eighth tergum broad, sternum 
produced ventrally, truncate in ventral aspect; ninth segment quad- 
rate, with a middorsal point, a small lateral flap, and a ventral rodlike 
support; claspers with a ventrolateral lobe, and a flattened mesal 
lobe bearing a stout setae from its dorsal margin; tenth tergum con- 
sisting of paired elongate dorsal sclerites, a triangular lateral sclerite, 
and flattened ventromesal sclerites lying within the mesal lobes of 
the claspers; aedeagus with cylindrical basal and apical portions 
separated by a constriction, apical portion with an indistinct internal 
spine, with outer surface sclerotized in basoventral region. 
LARVA, PUPA, AND CASE.—Not known. 
MateriALt.—Holotype, male: Dominica, Fond Figues, 13 March 1965, W. W. 
Wirth, USNM Type 69897. Paratype: same, but 6 April 1964, O. S. Flint, Jr., 1c. 
Brotogy.—Both specimens were taken at light near a large, clear, 
fast-flowing lowland river. 
Alisotrichia septempunctata, new species 
Figures 106-109 
Both the coloration of this species and the unique structure of the 
genitalia are diagnostic. 
Avutt.—Length of forewing 2.5 mm. Black, each forewing with 
3 bright green spots, mesonotum with a green mesal spot. Basal 
antennal segment unmodified. Ocelli 3. Maxillary palpus with 2 basal 
segments very short, third and fifth long, subequal, fourth % length 
of third. Male genitalia: no processes from sterna; eighth tergum 
broad, sternum produced ventrolaterally, posterior margin broadly 
V-shaped in ventral aspect; ninth segment with ventrolateral angles 
prolonged anteriorly, with posterior margin produced into an up- 
turned, swordlike process; claspers completely fused, developed as 
a long, slender rodlike process from apex of ninth sternum; a terete, 
semimembranous process arising mesad of lateral process of ninth 
segment; tenth tergum flattened, developed as broad lateral plates 
with an apicoventral point, dorsally with a pair of mesal parenthesis- 
like sclerites; aedeagus with apical and basal cylindrical portions 
