NO. 3660 MICROLEPIDOPTERA, XVII—CLARKE 7 
not coalesced. Tegumen short, about half the length of harpe. Anellus 
a broad, oval, sclerotized plate. Aedeagus stout, curved, with a 
dorsodistal, pointed, curved element and a pointed ventrodistal 
part expanded basally as a flat plate. 
Female genitalia slide AB Dec. 2, 1925. Ostium transverse, narrow, 
ventral lip slightly concave; lamella antevaginalis heavily sclerotized 
laterally. Antrum broad, flattened, sclerotized. Inception of ductus 
seminalis posterior, from a depressed area within a sclerotized ring 
in side of bursa copulatrix. Ductus bursae ribbed, short. Bursa 
copulatrix ribbed posteriorly, the ribs confluent with those of ductus 
bursae. 
Type: U.S. National Museum. 
Type-locality: Costa Rica, Juan Vinas. 
Distribution: Costa Rica, Guatemala. 
Busck’s type is a 2 from Juan Vinas as indicated in the original 
description. There are three other specimens (2 99, Turrialba, Costa 
Rica, Wm. Schaus; <’, Volcan Santa Maria, Guatemala, Schaus 
and Barnes) not mentioned by Busck, which are marked ‘“‘Cotype.” 
Presumably these three were before Busck when he described the 
species and are, therefore, paratypes, not cotypes. In addition, there 
is another specimen, 2, from Volcan Santa Maria, Guatemala. 
The name of this species is a misspelling of Turrialba. 
The illustrations of this species are presented for comparative 
purposes because the species has not been figured previously. 
Hysterosia alphitopa, new species 
FIGURE 4; PLATE 1 (FIa. 2) 
Alar expanse 22-26 mm. 
Labial palpus creamy white; second segment with ocherous-buff 
scaling basally on outer side. Antenna gray with white scaling dorsally 
at base of shaft; scape creamy white. Head creamy white with slight 
grayish-ocherous suffusion. Thorax creamy white; anteriorly burnt 
sienna; dorsally, two irregular but conspicuous black spots. Forewing 
ground color gray, basal third pale, ochraceous buff; at end of cell, 
and at extreme base of wing small, but conspicuous, yellow spots of 
raised scales; inner angle yellow; costa, to middle, broadly fuscous 
marked by dashes of leaden-metallic scales; beyond the fuscous basal 
portion a conspicuous, large, white blotch with a distinct black spot 
on costa at center of blotch; from the outer edge of the costal white 
blotch, at about vein 8, an oblique, outwardly curved, ocherous-white 
line extends to termen at vein 4, is preceded inwardly by an irregular 
patch of burnt sienna, the latter to tornus, with two small, black 
dashes costad, and followed by an irregular, outwardly oblique, black- 
ish band, this bounded by narrow lines of metallic scales; at apex 
