14 PROCEEDINGS OF THE NATIONAL, MUSEUM vol.71 



DIATRAEA MAGNIFACTELLA Dyar 



Figures 3, 52 



Diatraea magnifactella Dyar, Eut. News, vol. 22, 1911, p. 201, 



A large species. Fore wing brownish straw, darker in the male 

 than in the female; cross lines distinct in the male, less so in the 

 female, blackish like the terminal and discal dots, the outer line 

 dotted. Hind wing brown in the male, largely sordid-tinted in the 

 female. Front with a tubercle. Hind tibia of the male without 

 hair tuft. 



Expa^ise. — Male S'2 mm. ; female, 36-47 mm. 



Male genitalia distinguished by the truncate (almost square) 

 lateral lobes of tegumen and the irregularly shaped and spined pro- 

 jection from costal base of harpe. Arms of anellus finely scobinate 

 at apices. Gnathos finely spined for about half its length from apex. 

 Figured from paratype from Orizaba. 



Female genitalia distinguished by the coarse granulation in area 

 behind genital opening and the greatly elongated bursa. Figured 

 from paratype from Oaxaca. 



Two males, eight females before us from Mexico; Villa Union, 

 Sinaloa, Cuernavaca, Jalapa, Orizaba, Oaxaca (the Villa Union 

 specimens reared by T. E. Holloway) . 



Type. — In National Collection. 



Type locality. — Orizaba, Mexico. 



Food plant. — Sugar cane. 



DIATRAEA GUATEMALELLA Schaus 



Figures 6, 55 



Diatraea guatemalella Schaus, Proc. Ent. Soc. Washington, vol. 24, 1922, 

 p. 138. 



Resembling tahemella, but somewhat larger, the hind tibia of the 

 male without hair tuft. Lines as in tabernella., but the inner accom- 

 panied centrally by a shaded blotch, which shows, more or less, even 

 in the female. Male fore wing brownish straw; of female more 

 yellowish; the lines faint but not wholly obliterated. Hind wing 

 of male strongly and uniformly brown shaded; of female white. 

 The front is produced with central tubercle. 



Expanse. — Male, 21-30 mm; female, 30-40 mm. 



Male genitalia distinguished by the coarse and dense dentation of 

 the basal costal projection of harpe, the triangular, sharply pointed 

 lateral lobes of tegumen, and the almost smooth gnathos (spined 

 only very weakly toward apex). 



Female genitalia distinguished by the very wide genital opening; 

 bursa greatly elongated. 



