356 PKOCEEDINGS OF THE NATIONAL MUSEUM vol.86 



FEMALES 



1. Hind wings semihyaline toward their bases 1. cactorum (Berg) 



Hind wings brownish or fuscous throughout 2 



2. Hind wings smoky fuscous 3 



Hind wings brownish fuscous 5. bucyrus Dyar 



3. Hind wings pale smoky fuscous 4. mundelli, new speclea 



Hind wings dark smoky fuscous 3. doddi, new species 



1. CACTOBLASTIS CACTORUM (Berg) 



Plates 26, 38, 44, 47; Figures 9-9c, 48-48a, 80, 98-98a, 99 



Zopliodia cactorum Berg, Anal. Soc. Cient. Argentina, vol. 19, p. 276, 1885. 



Cactoilastis cactorum (Berg) Raqonot, M^moires sur les L^pidoptferes, vol. 8, 

 p. 16, 1901. — DoDD, Council for Scientific and Industrial Research, Austra- 

 lia, Bull. 34, p. 30, 1927; Bull. Ent. Res., vol. 27, p. 509, 1936.— Dyar, Proc. 

 Ent Soc. Washington, vol. 30, p. 135, 1928. 



Male. — Head sordid whitish ocherous. Palpi pale cinereous, the 

 tips of the maxillary palpi and the ends of the segments of the labial 

 palpi blackish fuscous. Thorax dull ocherous- fuscous rather heavily 

 dusted with blackish fuscous on posterior half. Fore wing ocherous- 

 fuscous more or less dusted with white on costal half between ante- 

 medial line and apex; antemedial line black, angulate, the apex of 

 angle at vein lb, sometimes obscure except on costal half; subterminal 

 line black, with a narrow whitish outer border and beyond this a 

 faint fuscous band, the black line straight from near apex to vein 6, 

 thence sinuate and dentate to inner margin, the ends of the dentations 

 rounded; a black spot at end of cell and a few scattered black scales 

 on disc; along termen at vein ends a row of seven distinct black 

 dots. Hind wing white, semihyaline, costal margin narrowly bor- 

 dered with fuscous and on termen a fine black line, the latter not 

 extending to inner angle. Mid tibia pale cinereous with a narrow, 

 black, transverse band at outer fourth. 



Alar expanse, 23-32 mm. 



Genitalia not exhibiting any marked specific characters; the slight 

 comparative differences from the genitalia of the other Cactohlastis 

 species are shown in figures 9-9c, 10, 11, and 12-12c. 



Female. — Hind wing white, semiliyaline with some fuscous shading 

 on the veins and a rather broad fuscous suffusion at apex and along 

 termen for a short distance from apex. Otherwise similar to the 

 male except for the normal sexual differences in antennae and labial 

 palpi. 



Alar expanse, 27-40 mm. 



Genitalia (figs. 48-48a) not exhibiting any marked specific differ- 

 ences from those of other Cactohlastis species except perhaps in the 

 narrower width of the eighth segment collar. This character, how- 

 ever, is individually variable. 



