THE CANADIAN ENTOMOLOGIST 237 



white median band. The outer fuscous border is rather narrow, 

 and the pale median band is fuscous suffused. My specimens of 

 excelsa all agree exactly with Ottolengui's figure in this respect. 

 In the other species the secondaries are better described as yellow- 

 ish white, slightly fuscous at the base, and with a broad fuscous 

 outer band, occupying the outer third of the wing. The central 

 portion of the wing is thus much dirtier in excelsa, but the outer 

 border narrower. On the underside excelsa is more suffused with 

 gray and fuscous than the unknown species. The discal spot on 

 secondaries beneath in excelsa is scarcely more than a point. In 

 the unknown species it is obviously V-shaped. In both species 

 spines are usually, but apparently not always, present on the hind 

 tibiae. 



If the Kaslo specimens formerly recorded as u-aureum were 

 subsequently named excelsa after a comparison with a co-type of 

 that from Jefferson, New Hampshire, which my notes tell me I saw 

 in the Washington collection, then it is possible that the co-type 

 in question is not excelsa. Of course, Dr. Ottolengui may have 

 mixed these two species in his description, but I am taking it for 

 granted that his figure represents the type. 



The Kaslo and Nelson specimens in question have a most re- 

 markable resemblance to Mr South's most excellent photo-litho- 

 graph figures of interrogationis Lin., PI. 26, figs. 4,5, of his "Moths 

 of the British Isles, "Series ii., though I appear to have overlooked the 

 resemblance in the British Museum, if, indeed, I noticed the Linnean 

 species at all. I had a Nelson specimen with me, and it did not 

 satisfy me as agreeing with the ii-aureum of that collection. 1 noticed 

 several similar B.C. specimens there however, standing under 

 more than one name. It differs most obviously from what I have 

 listed as octoscripta, which it sometimes nearly resembles in the 

 sign, by a totally different arrangement of color, the less crenate 

 t.p. line, and the absence of blackish dashes both before and after 

 the s.t. line. 



I have seen specimens of it standing under celsa, described, 

 I believe, from Oregon, and have two from Duncans, Vancouver 

 Island, which appear to be the same species, though slightly 

 larger and with sharper contrasts, one of which agrees with 

 Ottolengui's figure of celsa in every detail except the sign. In this 



