12 THE CANADIAN ENTOMOLOGIST. 



female the maculation is much better written. So great a difference 

 between the sexes is not usual in this series, and I believe that more 

 material will bring maculate males and more nearly immaculate females. 



Mamestra orida, n. sp. — Ground colour ashen gray, powdered with 

 black. Head inferiorly protuberant, a little roughened, yellowish in 

 colour. Vague blackish lines across the front and vertex. Collar 

 inferiorly a little paler ; a more or less obvious black transverse line. 

 Thorax powdery, patagia with obscure submarginal lines. Primaries 

 powdery, the maculation obscure, except that the reniform and the s. t. 

 line are always conspicuous. Basal line geminate, smoky, well marked ; 

 connected with base by a short black line in the submedian interspace. 

 T. a. line marked by geminate blackish dots on costa and then lost. T. 

 p. line also marked by costal spots and in some specimens by venular 

 black dots, never complete. S. t. line whitish, irregular, with small 

 outward teeth on veins 3 and 4, emphasized by the darker terminal space 

 and a dusky preceding shade. A series of black terminal interspacial 

 lunules. Fringes white at base, interlined with smoky, cut with paler on 

 the veins, edges a little notch. Veins marked by blackish scales. 

 Claviform broad, varying in length, outlined by blackish scales, 

 concolorous. Orbicular rather small, oval, somewhat elongate, outlined 

 in smoky brown, annulate with yellowish, smoky centered. Reniform 

 large, kidney-shaped somewhat dilated inferiorly, and there obscured by 

 a blackish, diffuse shading. Secondaries white, with a broad black outer 

 margin, the fringes white. Beneath white, more or less powdery over the 

 costal region. All wings with a broad, black submarginal band, and 

 within this a series of black venular dots. Primaries with a discal lunule, 

 secondaries with a discal dot. Tarsi annulate with black and white. 



Expands 30-33 mm. = 1.20 to 1.32 inches. 



Habitat : Stockton, Utah, in October. 



Two (^ and seven y from .Mr. (Icorge Franck, who has others 

 which do not materially differ from the series under observation. The 

 antennie of the male have the joints a little marked, and are obviously 

 ciliated. The genitalia are quite unique, and do not closely resemble 

 those of any of the species figured by me in the revision. 



It belongs to the group de/cssa, and may be most nearly associated 

 with chartaria, differing obviously in the black-margined secondaries. 

 The maculation of the under side is quite characteristic, and in all this 

 species should be readily recognizable. 



