38 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 125 
Described from the unique holotype male (13.XII.59, F. Luis 
Gallego M.). 
This species is of particular interest because of the modified sixth 
sternum and the enormous cornutus, which has been demonstrated 
elsewhere only in the family by Razowski (1964: 367, figs. 28, 29), 
where he figures P. zehthyochroa (Walsingham) from St. Croix. Ra- 
zowski’s figure 28 does not correspond to other species in Phalonidia, 
nor does it match heterophaea. The enormous aedeagus and cornutus, 
however, relate heterophaea and ichthyochroa, which will probably 
require a new genus. 
Trazona Razowski 
Trazona icogramma, new species 
Figure 20; Puats 4 (ria. 2) 
Alar expanse 12-13 mm. 
Labial palpus white; second segment tinged ocherous on outer side 
of basal half. Antenna grayish fuscous; scape white in distal half. 
Head white. Thorax fuscous. Forewing ground color white; dorsum 
broadly marked with leaden gray strigulae and blotches; basal patch, 
except dorsal half, tawny; at outer third of dorsum a conspicuous, 
large, fuscous spot reaching slightly beyond fold; from middle of 
costa to tornus an ill-defined, irregular, outwardly oblique, ochraceous- 
tawny fascia preceded and followed by scattered blackish-fuscous and 
leaden-gray scales; from apical third of costa, to termen at vein 5, 
a leaden-gray fascia with spots of ochraceous-tawny and fuscous scales 
along edges; apex and a spot between veins 2 and 4 similarly colored; 
costal scales elongate, clay color, at one-third; underside strongly 
infuscated; cilia light clay color. Hindwing grayish fuscous; cilia 
a pale grayish with darker subbasal line. Foreleg white, overlaid with 
grayish fuscous on outer side; midleg white with grayish suffusion on 
tarsal segments; hindleg white. Abdomen grayish dorsally, white 
ventrally. 
Female genitalia slides JFGC nos. 11221, 11642. Ostium broad. 
Antrum strongly sclerotized. Inception of ductus seminalis at middle 
of bursa copulatrix. Ductus bursae short, strongly sclerotized except 
for small membranous band anterior to antrum. Bursa copulatrix 
with sclerotized, rounded evagination on right side posteriorly; 
inner wall clothed with sharp spines; accessory bursa extending beyond 
bursa copulatrix. 
Holotype: U.S. National Museum No. 69750. 
Type-locality: Guatemala, Volcan Santa Maria, October. 
Distribution: Guatemala. 
Described from the female holotype (October) and one 9 paratype 
