N0.137C. LEPIDOPTERA OF THE KOOTENAI DISTRICT— DYAll. 853 



but the subventral band is dotted and obsolete, the substioinatal space 

 forming a ])road greenish white Imnd. Suprastioinatal l)an(l paler 

 than the subdorsal and lateral; subdorsal broadl}^ geminate, blackish- 

 green dotted tilled. 



Stage V. — Head, 2.1 mm. Lateral and suprastigmatal dark bands 

 more vacuolated dotted and obscurely geminate by their edges. 

 Otherwise no change; spiracles white. 



Stage VL — Head erect, bilobed, the apex in joint 2; green, a little 

 jxllowish over the lobes and faintly darker green reticulate; width, 

 3.1 mm. Body all much as before but still paler. Soft velvety 

 yellow green, faintl}' dotted and reticulate in dai-ker. Subdorsal band 

 defined onlj^ by its edges, giving a smoky dorsal geminate line, the 

 space between subdorsal and lateral forming dark ]>ands, giving a pale 

 subdorsal line blackish-green edged; an obscure white stigniatal line. 

 Skin folds yellowish; tubercles small, dark; iv below the center of the 

 spiracle. The larva is almost unmarked, especially as the colors pale 

 with growth. 



This is a tree-feeding Noctuid, as is very evident from the colora- 

 tion. The food plant is probably the thimbleberry {Bubus nutkanus). 



MAMESTRA STRICTA Walker. 



Seven specimens, August 20 (West Eobson), 25 (Victoria), 31 

 (Shawnigan Lake), September 1 (Shawuigan Lake), 2 (Wellington), 5 

 (Shawnigan Lake). 



MAMESTRA OLIVACEA Morrison, var. PETITA Smith. 



Eight hundred and forty-three specimens, June 25, July 21, 22, 25, 

 27, 31, August 5, 0, 7, 12, 15, 21 (Revelstoke). As some difference of 

 opinion has arisen concerning the proper placing of the forms allied 

 to (illvacea^ I will here discuss the matter. In Bulletin No. 52 of the 

 U. S. National Museum, I referred minis Grote as a variety of oUvacea 

 with davena Smith, luc'ma Smith, altua Smith, nuegavciia Smith, and 

 'petita '^xmXh as synon3ans; rectllhiea Smith as a second variety with 

 circumcincta Smith and ohnigra Smith as synonyms. To this conclu- 

 sion Professor Smith expresses dissent,'' and states his adherence to 

 the views expressed in a previous paper.'^ After studying the 1,5(K> 

 specimens from Kaslo, the material in the National ]\Iuseum and Pro- 

 fessor Smith's slides, I am disposed to admit two distinct species, 

 though they run very closel}'. I have separated the Kaslo catch into 

 two series, which typify olivacea and coviis and, tiiough there may be 

 doubt alH)ut a few specimens, I can broadly separate them. Ollravta 

 is smaller, without tendency to green, and th(^ discolorous spot at anal 



« Jour. N. Y. Ent. Soc, XI, 1903, p. 14. 

 ''Traiiy. Am. Ent. f>oi-., XXVII, IWl, p. l.':!0. 



