398 PROCEEDINGS OF THE NATIONAL MUSEUM vol.86 



Moodna elongatella Hampson, M6moires sur les L^pidoptdres, vol. 8, p. 269, 



1901. 

 Cactobrosis longipennella (Hampson) Dyab, Proc. U. S. Nat. Mus., vol. 47, p. 



407, 1915. 

 Cactobrosis elongatella (Hampson) Dyab, Proc. U. S. Nat Mus., vol. 47, p. 



407, 1915. 

 Cactobrosis femaldalis (Dyab, in part), Insecutor Inscitiae Menstruus, vol. 13, 



p. 223, 1925; Proc. Ent. Soc. Washington, vol. 30, p. 135, 1928. 



Male. — Like that of fe7"naMi-alis except that pectinations of an- 

 tenna are about half the length of those on femdldialis (compare 

 figs. 134a, 134b, and 136a, 136b) ; transverse pale markings on fore 

 wing obsolete in some specimens. 



Alar expanse, 34-40 mm. 



Genitalia (figs, 37-37d) figured from type of elongatellu; similar 

 to those of femcddidlis except smaller ; harpe not so markedly creased. 



Female. — Similar in color and markings to the female of fern- 

 aldialis. 



Alar expanse, 33-43 mm. 



Genitalia (figs. 74-74a) figured from specimen from Oaxaca; 

 with sclerotized ventral plate in ductus bursae at genitalic opening 

 larger and the opposing small plates on the dorsal wall of the ductus 

 narrower than those of fertialdialis. 



Types. — In British Museum [longipennella) \ United States Na- 

 tional Museum {elongatella). 



Type localities. — Tres Marias Islands, Mexico {l<^ngipennella) ; 

 Orizaba, Mexico {elongatella). 



Food plant. — Unknown, probably Ferocactus. 



Distribution. — ^Mexico: Orizaba, Oaxaca, Tchuacan (June), Cuer- 

 navaca (June, July), Zacualpan (March, Oct.). 



Eleven specimens examined. I have seen no examples from the 

 type locality of longipennella. 



Remarks. — Dyar (1925) made the synonymy of longipennella and 

 elongatella and sanlc both names to femaldialis. The differences be- 

 tween their male antennae clearly indicate that longipennella and 

 femaldialis are distinct, if very close, species. The differences in 

 female genitalia, while slight, appear to be constant. They are com- 

 parative, however, and apparent only when one has slides of both 

 species before him. 



3. CACTOBROSIS MACULIFERA Dyar 



Plates 35, 43, 51 ; Figukeb 38-38d, 75-75a, 137-137a 



Cactobrosis maculifera Dyar, Proc. U. S. Nat. Mus., vol. 47, p. 407, 1915 ; Proc 

 Ent. Soc. Washington, vol. 30, p. 136, 1928. 



Mole. — Antenna strongly serrate and fasciculate. PaJpi, head, 

 and thorax pale clay color ("luteous"). Fore wing luteous-gray 



