ART. 19. MOTHS OF THE GENUS DIATRAEA DYAR AND HEINEICH 17 



Male type and female paratype before us from the type locality, 

 April 17-24, 1912 (A. Busck). 

 The life history is unknown. 

 Type.—Q^i. No. 29428, U.S.N.M. 

 Type locality. — Porto Bello, Panama. 



DIATRAEA ANGUSTELLA Dyar 



Figures 8, 56 



Diatraea angusteUa Dyar, Ent. News, vol, 22, 1911, p. 205. 



Fore wing narrow and dull dark brownish, the veins conspicuously 

 lined; discal dot small or obsolete; a distinct yellow ray from the 

 cell outward. Hind wing slightly brownish tinged in male, white 

 in female. 



Expanse. — Male, 29 mm. ; female, 32-35 mm. 



Male genitalia with broadly triangular lateral lobes on tegumen. 

 Basal costal projection of harpe rather finely scobinate. Gnathos 

 spined for over one-third its length from apex. 



Female genitalia as in saccharalis., except ductus and area about 

 genital opening less strongly chitinized. 



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



Two males and five females before us, all from the type locality. 



The life history is unknown. 



Type. — In National Collection. 



Type locality. — Castro, Parana, Brazil. 



DIATRAEA MOORELLA, new species 



Very similar to angusteUa; smaller, the ground of fore wing more 

 yellowish, the discal dot generally more distinct. Front with a 

 tubercle. Hind tibia without hair tuft. 



Expanse. — Male, 20-26 mm.; female, 28-30 mm. 



Male genitalia like those of angustella. 



Female genitalia as in instructella. 



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



Three males and six females before us, British Guiana and Brazil : 

 EsTate "Die Kinderen," British Guiana (H. W. B. Moore, No. Ill) ; 

 "All Estates," British Guiana (H. W. B. Moore, No. 81) ; Castro, 

 Parana, Brazil. 



Mr. Moore's No. Ill was bred from larva in stem of Anthervm, 

 Vicorne ( =Andropogon) ; his No. 81 from larva in stems of razor grass 

 {Paspalmn species). Both sexes of No. 81 are before us, but of No. 

 Ill we have only a male, the genitalia of which are here less distinct 

 than usual. 



Compare also anathemcola., bred from the former food plant, but 

 a gray, not yellowish, species. 



