THE CACTUS-FEEDING PHYCITINAE — HEINRICH 359 



female paratypes from the type locality reared (by Mundell) in 

 October 1936 from larvae in O. f,cu3-indica; six male and three 

 female paratypes from Mendoza, Argentina, reared (by Mundell) in 

 October 1937 from larvae in O. sulphurea; and three male and four 

 female paratypes reared in Australia (Dodd no. 49). 



Thirty-eight specimens examined. 



According to Dodd, this species "is distributed along the eastern 

 edge and foothills of the Andes from Mendoza right to the northern 

 boundary of the Republic in O. sulphurea, and almost certainly into 

 southern Bolivia at altitudes to 8,000 feet and probably more. Hence, 

 as far as our information goes, No. 49 {doddi) inhabits territory 

 lying in between that of cactorum and the Peruvian insect {mun- 

 delli)P 



0. sulphurea seems to be the favored host of doddi. Mr. Dodd 

 tells me that cactoi'um does not attack this cactus although it is 

 abundant in territory within the range of that insect. He also states 

 that there are consistent differences in the eggs and egg sticks between 

 the two species and that their larvae can be distinguished in the 

 field. I am unable to separate alcoholic specimens of the larvae 

 with any certainty. The moths can be distinguished easily enough 

 by the characters given in the key. 



Named in honor of Alan P. Dodd. 



4. CACTOBLASTIS MUNDELLI, new species 



Ptj^tes 26, 47; Fiquees 11, 100, 101 



Male. — Head ocherous. Palpi cinereous, dusted with black. Thorax 

 ocherous-fuscous, heavily dusted with white and black scales, espe- 

 cially on tegulae and posterior margin. Fore wing ocherous-fuscous 

 with a fine dusting of white scales in costal area from base to apex ; 

 some black scaling on the veins; discal dot at end of cell somewhat 

 obscured by a dark smudge which extends beyond the cell toward 

 vein lb; transverse black lines distinct and well contrasted against 

 the ground color; dentations of subterminal line as in doddi; a row 

 of seven small black dots on termen at the vein ends. Hind wing 

 dull white with a faint smoky tint ; veins faintly outlined in f uscous- 

 ocherous; some fuscous shading along costa and a fine fuscous line 

 on termen from apex to about vein lb. 



Alar expanse, 38-40 mm. 



Genitalia with base of apical process of gnathos (fig. 11) nearly 

 square when viewed from beneath. 



Female. — Like the male in color and markings except that the 

 hind wing is pale smoky fuscous. 



Alar expanse, 42 mm. 



