20 PEOCEEDINGS OF THE NATIONAL MUSEUM vol.71 



doides was described from Kansas, whence we have received a speci- 

 men of zeacolelM, but we have never seen saccharalis from north of 

 the Gulf coast region. 



DIATRAEA POSTLINEELLA Schaus 



Figure 12 



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

 p. 138. 



A rather large, darkly shaded species, known in only the single 

 male type. Fore wing dark brown, the lines and discal dot darker, 

 not strongly contrasted. Hind wing almost as dark as fore wing, 

 showing near the margin a shaded darker band. Front prominently 

 bulging, but without tubercle. Hind tibia of male without tuft. 



Expanse. — Male, 27 mm. 



Male genitalia as in seacolella, but with uncus bluntly pointed and 

 without lateral flaps. Figured from type. 



Abdomen of male with pair of lateral tufts on second segment. 



The life history is unknown. 



Ti/pe. — In National Collection. 



Ti/pe locality. — Quirigua, Guatemala. 



DIATRAEA CANELLA Hampson 



Figures 13, 60 

 • Diatraea canella Hampson, Ann. Mag. Nat. Hist., ser. 6, vol. 16, 1895, p. 349. 



A readily recognizable species, broad winged, reddish gray, the 

 cross lines distinct, outer one dotted, inner excurved around the discal 

 dot; sparsely black irrorate. Hind wings soiled white in the male, 

 sometimes soiled slightly apically in the female. Front with a 

 conical tubercle. Hind tibia of the male without hair tuft. 



Expanse. — Male, 19-30 mm. ; female, 25-34 mm. 



Male genitalia with a slender subbasal digitate projection (three 

 times as long as broad) from costa of harpe. Anellus with a few 

 serrate projections on lateral edges and with long, slender, pointed, 

 smooth lateral arms. Penis with a single short pointed cornutus. 

 Figured from specimen from Georgetown, British Guiana. 



Female genitalia distinguished by the irregular shape of the genital 

 opening and the small chitinous patch in the neck of bursa. Figured 

 from specimen from British Guiana (G. E. Bodkin.) 



Abdomen of male without hair tufts on second segment. 



From the Guianas, Trinidad, and Grenada. 



Type. — In British Museum. 



Type locality. — Grenada. 



Food plant. — Sugar cane (larvae boring in the stems). 



