57 



median space ; a dark-brown, acutely dentate median line, 

 of which sometimes only a brown dash on the median space 

 and another at the extremity of the disk are visible. Sub- 

 terminal line brown, edged with white outwardly. A white 

 apical patch, and more or less white on the hind margin. 

 Fringes brownish. Hind wings pale fuscous, with narrow 

 terminal line and white fringes. 



Habitat. Oregon. Food plant and early stages un- 

 known. 



CBAMBUS BOXIFATELLUS. (Plate VI., fig. 6.) 



Spermalophthora? bonifatellus Hulst,Ent. Am., Vol. III., p. 135 (1887). 



Expanse of wings, 21 mm. Head, palpi and thorax light 

 fuscous. Fore wings yellowish fuscous, with the veins 

 lighter ; a whitish dot with a black dentate spot on each side 

 of it near the end of the cell ; an indistinct row of dark 

 marginal points. 'Fringes ochreous. Hind wings smoky 

 fuscous. 



Habitat. Colorado. Early stages and food plant un- 

 known. 



CBAMBUS MUTABILIS. (Plate II., fig. 9.) 



Crambus mutdbilis Clem,, Pr. Ph. Ac. Sci., p. 204 (1860). 

 Crambus fuscicostellus Zell., Chil. et Cram., p. 44 (1863). 

 Crambus mutabilisFelt, Grass-eating Ins , pp. 64, 83 (1894). 



Expanse of wings, 23-24 mm. Palpi, head and thorax 

 fuscous. Fore wings grayish fuscous, luteous on the pos- 

 terior half; a diffuse grayish median stripe, tinted with 

 luteous, spreading over the costal half of the wing, with the 

 exception of a brown costal margin from the base half way 

 to the apex ; a dark-brown dot at the end of the median 

 vein, sometimes streaked with dark fuscous below the vein. 

 Subterminal line dark brown, faint, dentate, usually with 

 a marginal row of brownish dots. A diffuse brown streak 

 from the apex inward toward the cell. Fringes brownish, 

 lustrous. Hind wings gray or pale fuscous ; fringes pale 

 fuscous. 



Habitat. Ontario, Massachusetts, Connecticut, New 

 York, Ohio, Illinois, Kentucky, Florida, Louisiana, Ne- 

 braska, Texas. Food, grass. 



