ART. 19. MOTHS OF THE GENUS DIATRAEA DYAR AND HEINRICH 37 



HAIMBACHIA DISCALIS, new species 



Figure 72 



Wings broader and more normally shaped than in dumjytalis and 

 niaroniella. The whitish ground or fore wing is thickly strewn with 

 black atoms ; a large rounded black discal dot, between which and the 

 inner margin is a faint yellow band, emphasized there by a blackish 

 spot, less distinct costally; a narrow outer white line, indicated by 

 double oblique brown streaks on costa, curves sharply outward and 

 runs near the margin; a terminal black line; at tornus three black 

 spots in a yellow area; fringe plumbeous interlined. Hind wing 

 whitish, more or less pale fuscous suffused. 



Exjianse. — Male and female, 13-18 mm. 



Male genitalia as in gJonella Schaus. 



Female genitalia distinguished by the (spined) single signum of 

 bursa. Figured from paratype. 



Ten old specimens from Jalapa and Orizaba, Mexico, collected by 

 Doctor Schaus many years ago. 



Type.—C^t. No. 29436, U.S.N.M. 



Type locality, — Jalapa, Mexico. 



HAIMBACHIA (?) PROSENES (Dyar) 



Figure 76 



Diatraea pi'ose^ies Dyab, 1st Ami. Kept. Laguna Mar. Lab., 1912, p. 165. 

 Chilo prosenes (Dyar) Barnes and McDunnough, List Lepid. Bor. Amer., 

 No. 5433, 1917. 



A rather large species ; white ; the median line absent ; subterminal 

 line single and brown (not white) and bordered as usual. 



Expanse. — Female, 20-23 mm. 



Female genitalia figured from specimen from La Puerta Valley, 

 Calif. ; different from anything else in the genus and exhibiting none 

 of the typical characters ; no chitinous tongue from collar of 8th seg- 

 ment ; bursa very small and without trace of signa ; supporting rods 

 of ovipositor not dilated. 



This species does not belong strictly to Haiinbachia; but without 

 male we can make no other reference. Specimens before us from 

 southern California. 



Life history unknoAvn. 



Type. — In National Collection. 



Type locality. — Laguna Beach, Calif. 



SPECIES REFERRED FROM DIATRAEA* 



The following species have been described in or referred to Dictr- 

 traea.^ but differ from the generic definition we have adopted and 



* Platytes dentilitieatella Barnes and McDunnough is mentioned and figured here only 

 because it is an important enemy of sugar cane. We are referring it to the genus XuMda. 



