ART. 19. MOTHS OF THE GENUS DIATKAEA DYAR AND HEINRICH 25 



dark tinted. Front with a pointed tubercle. Hind tibia of male 

 without a hair tuft. 



Expanse. — Male, 28-31 mm. 



Male genitalia as in grandiosella except: Uncus bluntly pointed; 

 gnathos rather short (considerably shorter than uncus), terminating 

 in a scobinate bluntly rounded end with a short, sharp spur beneath; 

 cornutus weakly chitinized but distinguishable. 



Abdomen of male without tufts on second segment. 



Two males are before us from the type locality, dated August 

 (Schaus and Barnes). 



The life history is unknown. 



Typ6.—C^t. No. 29431, U.S.N.M. 



Type locality. — Che j el, Guatemala. 



DIATRAEA MUELLERELLA. new species 



Figure 20 



Superficially indistinguishable from lineolata Walker. Separable 

 on details of the genitalia. 



Expanse. — Male, 28 mm. ; female, 30 mm. 



Male genitalia as in gi'-aiidio sella except that gnathos has a strong, 

 projecting inner spur before apex. Figured from type. 



Female genitalia as in lineolata except that chitinous band in neck 

 of bursa is a trifle stouter. 



Abdomen of male without tufts on second segment. 



A male and a female are before us : Male, Guerrero, Mexico, July, 

 1920 (K. MiUler) ; female, Iguala, Guerrero, Mexico, June, 1906 

 (W. Schaus). 



The life history is unknown. 



Type.—Q^t. No. 29432, U.S.N.M. 



Type locality. — Guerrero, Mexico. 



DIATRAEA GRANDIOSELLA Dyar 



Figures 21, 68 



Diafraea grandiosella Dyar, Ent. News, vol. 22, 1911, p. 205. 

 . Diatraea lineolata Baknes and McDunnough (not Walker), List Lepid. 

 Bor. Amer., No. 5438, 1917. 



A rather large, light colored species. Fore wing pale, whitish, 

 with slight yellow tint; veins and intervenular lines brown; discal 

 and terminal dots small, blackish. Front without a tubercle. Male 

 hind tibia without a tuft. 



Expanse. — Male, 15-30 mm. ; female, 30-38 mm. 



Male genitalia with harpe simj)le except for a slight hairy pro- 

 tuberance from base of costa. Uncus and gnathos broadened (spatu- 



