ART. 19. MOTHS OF THE GENUS DIATEAEA DYAR AND HEINRICH 19 



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



Specimens are before us from Louisiana and Mississippi, and a 

 series of four males and four females from Cayuga, Guatemala, the 

 latter running larger than those from the Gulf coast. 



Louisiana specimens were bred from Paspalum. 



Types. — In National Collection. 



Type localities. — Audubon Park, La. (evanescens) ; Cayuga, Guate- 

 mala (sohrinalis) . 



Food plant. — Paspalum laitraniagae. 



DIATRAEA ZEACOLELLA Dyar 



Figures 11, 59 



Diatraea zeacoleUa, Dyar. Eut. News. vol. 22, 1911, p. 203. — Holloway, 

 Jour. Agr. Res., vol. 6, 1916, p. 624. — Barnes aud McDunnough, List 

 Lepid. Bor. Amer. No. 5437, 1917. — Holloway and Loftin, U. S. Dept. 

 Agr., Bull. No. 746, 1919.— Forbes, Mem. 68, Cornell Univ. Agr. Exp. 

 Sta., 1923, p. 591. 



Diatraea tripsasicola Dyar, Ins. Ins. Mens., vol. 9, 1921, p. 193. 



A medium to large sized species, resembling saccharalis. The spe- 

 cies can generally be distinguished by its larger size, and the faint 

 subterminal line on the hind wings of the male. 



Expaiise. — Male, 26-36 mm. ; female, 29-42 mm. 



Male genitalia resembling those of postlineella, but differing mark- 

 edly in the shape of the uncus (compare, figs. 11, 12). Harpe very 

 broad at base, otherwise simple. Uncus heavy, with lateral flaps 

 and a broadened apex. Gnathos very stout, hooked and strongly 

 spined. Annellus with arms short, pointed and smooth. Penis with- 

 out cornutus. Figured from reared specimen from Richmond, Vir- 

 ginia (Webster No. 13146). 



Female genitalia with no extra chitinization in area surrounding 

 genital opening. Ductus bursae rather weakly chitinized. Bursa 

 large with a broad semicircular, partially scobinate collar in neck. 

 Figured from paratype from Tryon, N. C. 



Abdomen of male with a pair of lateral hair tufts on second 

 segment. 



The larvae are fully described in the Holloway and Loftin bul- 

 letin cited above. Here also we would note the same correction to 

 the description as in saccharalis (see p. 12). 



Specimens are before us from the Southern States, Virginia, North 

 Carolina, and Florida, also recently a specimen from Kansas. 



Types. — In National Collection. 



Type localities. — Tryon, N. C. {zeacoleUa) ; Miami, Fla. {tripsa- 

 cicola) . 



Food plants. — Indian corn, Tripsacv/m (larvae boring in the stems). 



It is probable that Chilo cranibldoides Grote, referred to the syn- 

 onymy of sacharalis^ is an earlier name for this species. C. cramhi- 



