JOHN B. SMITH. 265 



mite male and female were represented in the same collec- 

 tion, and were easily separated out. Maculation almost 

 exactly like yosemite, but not so well marked. The possi- 

 bility of a well marked variety is not excluded. 



Mamestra chunka n. sp. 



Body and primaries smoky fuscous. Head with obscure, dark, 

 frontal lines. Collar with two narrow blackish transverse lines, one 

 above middle and one just below tip. Patagia with black sub-margin. 

 Primaries with all the maculation well defined but not contrasting. 

 Basal line broken, black, geminate, outer portion obscure, included 

 space concolorous. T. a. line geminate, inner portion brown, rather 

 even, outer black, a little outcurved in the interspaces, tending to 

 become broken on the veins. Resting on the inner margin, and against 

 the lower portion of the t. a. line there is a dark smoky blotch in the 

 basal space that is inferiorly marked by a short black streak. T. p. 

 line rather abruptly bent over cell, almost evenly oblique below this, 

 geminate, inner line black, slender, a little lunulate, outer line brown, 

 slender, even, very close to inner so as to leave a very narrow included 

 space. S. t. line pale, yellowish, outwardly dentate to the margins on 

 veins 3 and 4, obscured toward apex by the pale apical shade. A 

 series of black terminal lunules. Fringes cut with yellowish opposite 

 veins. The s. t. space is variably shaded with gray, and gets a some- 

 what strigate appearance from the darker veins, emphasized by the 

 long outward dents of the s. t. line and by a series of two large and 

 several small black sagittate preceding spots. Claviform rather large, 

 pointed, extending nearly across the median space, often dark filled. 

 Orbicular narrowly elongate, small, with a pale outline. Reniforn 

 large, kidney-shaped, with the lower lobe extending outwardly, more 

 or less distinctly black margined, and usually dusky filled at least in- 

 feriorly. Secondaries pale at base, darkening to a broad dark outer 

 margin ; the veins smoky, and a dark discallunule obvious. Beneath, 

 all wings with a blackish extra-median line and discal lunules. 



Expands, 1.35-1.32 inches = 31-32 mm. 



^^.-Aweme, Manitoba, V, 13, 22 ; V, 20, Mr. Criddle. 



Three good males, one of them belonging to Mr. Dod. 

 The antennae have the joints distinctly marked, with tufts of 

 short soft ciliations laterally. The general habitus is like 

 crotchii, but it is even more robust, shorter winged and 

 heavier bodied, with a clean-cut maculation. There is, in- 

 deed, a tendency toward farnhami, and it is not improb- 

 able that some of the better marked forms have been 

 placed under that name. 



TRANS. AM. ENT. SOC, XXXVI. (34) NOVEMBER, 1910. 



