NO. 1376. LEPlDOPTEllA OF THE KOOTENAI mSTRlCT—DY All. 857 



small size would not be expected in a Western race of an Eastern 

 species, since these are always lar«i;('r. 



7tf/v.— Sphoroidal, the l)asal half more Hattened tlian the upper half; 

 about -i-o vertical ril^s, diminishing by alternation toward vertex, 

 ano-ulai-ly undulate, the sides pitted by the hollows, the vertex with 

 '/Mj^y.w^f crest, but the reticulations not distinct. The ril)s end in a 

 circle where the surface is radially grooved; micropylc elevated, \\\X\\ 

 circle of p3'riform cells. Pale yellow; diameter, 0.9 mm. 



Stage I. — Head slightl}^ bilobcd, roiuid, convex l)efore, clypeus 

 liigh; brown-black, clypeus paler; width, 0.3 mm. Body robust, 

 joint 12 slightly enlarged, the feet of joints 7 and 8 short. Whitish, 

 food reddish anteriorly; cervical shield large, black. Tubercles 

 small, blackish; seta3 long, pale, swollen-tipped, curved. The cervi- 

 cal shield has pale spaces around the tubercles. Skin minutely dusky, 

 granular. 



Stage 11. — Not observed; the description of Mamcstra laudahilU^ 

 in the corresponding stage will probably suffice. 



Stage TIL — Head dark sordid brown with long pale seta?; width, 

 U.O mm. Body moderate, sordid brown with narrow faint whitish 

 subdorsal and lateral lines. Tubercles round, black; set» long, fine 

 pale, curved, with enlarged tips. Skin minutely dark granular. 



Stage IV. — Head dull black, paraclypcus, mouth, .small brown 

 spots on faces of lobes and in vertical suture pale brown; width, 

 1 mm. Body rolmst, rather squarely flattened, joint 12 slightly 

 enlarged, folded; feet equal. Skin densely pale, papillose granular; 

 ground color dark brown, lines obsolete; subdorsal region lighter, 

 edged below by a velvety black band which is widened on the .seg- 

 ments, broken on thorax. Sides irregularl}' marked. Set* thick, 

 the tips widened. Shields concolorous; tubercle ii conspicuous by a 

 cluster of light granules; a light subdorsal patch on joint 12 anteriorly. 



Stage V. — Head rounded, the apex in joint 2 heavil}' reticulated in 

 dark brown on a pale ground, almost black; width, 1.8 mm. Bod}' 

 robust, quadrately flattened, no shields; densely papillose granular. 

 Black mixed with brown; tubercle ii .surrounded by a ring of pale 

 papillae, especiall}^ prominent on joints 12 and 13. Subdorsal region 

 of joint 12 and anal flap wa.shed with pale. Sul)dor.sal line pale with 

 deep black edge below; sub ventral fold lighter; lines obsolete. Seta^ 

 thick, pale or dark, widened toward the tips. Papilhe concolorous 

 with the markings. 



The hivvM pupated in the earth at the end of this stage, l>ut no 

 moths emerged. 



MAMESTRA SUTRINA Grote. 



No specimens; one from Mr. Cockle's collection July 12, 1002. 



"Can. Ent., XXXV, 1903, p. 273. 

 Proc. N. M. vol. xxvii— 03 59 



