THE CACTUS-FEEDINa PHYCITINAE HEINRICH 371 



transverse subtermiiial line not interrupted between veins 6 and 5, 

 dentate. 



Alar expanse, 21-25 mm. 



Genitalia (figs. 2(>-20c) essentially like those of graciella. 



Female. — Similar to the male in color and markings except 

 that the hind wings have a very pale smoky tint, paler on the average 

 than the hind wings of females of graciella. 



Alar expanse, 22-26 mm. 



Genitalia (fig. 58) similar to those of graciella but with signum a 

 trifle larger. 



Larvae "dark dull blue, gregarious in habit" (Dodd). 



Type. — In Kutgers College collection. 



Type locality. — Texas. 



Food plant. — Homalocephala texensis (Hopffer). 



According to Dodd the larvae also feed in Neomamillaria. 



Distribution. — United States: Texas^ Uvalde (June), "Big Bend" 

 (Apr.), San Antonio (June), Van Horn (June), San Diego (Apr.), 

 San Benito (Apr., May). 



Fifteen specimens examined. 



Remarks. — ^When Hulst (1890) transferred his graciella from Sper- 

 matoptliora to Zophodia^ he sank longipennella as a synonym of gror 

 ciella. Ragonot also treated them as one species. Dyar, in his catalog 

 (1903), listed longipennella as a race or subspecies. Later (1925) he 

 restored it to full specific rank. He was apparently justified in so 

 doing, for, while the two species are close and the differences between 

 them slight, these differences are constant. The host association, the 

 smaller average size, and the shallow indentation of the subterminal 

 line of the fore wing between veins 6 and 5 suggest that longipen- 

 nella is a distinct species rather than a race or variety of graciella. 



3. YOSEMFTIA FIELDIELLA (Dyar) 



Plates 28, 49; Figuees 18-18c, 114-1 14a, 115-115a 



Zophodia fieldiella Dyab, Insecutor Inscitiae Menstruus, vol. 1, p. 35, 1913. — 

 Babnes and McDunnough, Cheek list of the Lepidoptera of Boreal America, 

 no. 5711, 1917. 



Male. — Palpi pale brownish fuscous more or less dusted with white 

 and with some black scaling on ends of maxillary palpi. Head and 

 thorax paler brown, almost clay colored; tegulae tipped with black- 

 ish scales. Fore wing heavily dusted with white on costal half and 

 with some scattered white scales on remainder of wing ; area between 

 inner margin and cell pale brownish, concolorous with thorax ; ante- 

 medial line incomplete, distinct only from costa to lower vein of cell ; 

 subterminal line complete but obscure except for the blackish costal 

 dash, dentate, the incurvation between veins 6 and 5 shallow; from 



