154 THE CANADIAN ENTOMOLOGIST. 



smoother appearance and shows more of a pale fawn ground colour, which 

 seems generally obscured by the suffusion in detracta. I have only two 

 $ $ oi neoterica, all that seem to have been taken here in twelve seasons. 

 These are both narrower in expanse than the average of the ^ $ . In 

 detracta my $ 9 average larger than the $ o . A glance at Dr. Holland's 

 figures will give a good idea of the usual differences between the two forms. 

 The type is at Washington. 



293. M. Farnhami, Grt. — Not rare, at light and treacle. End May 

 to early July. 



294. M. liquida, Grt. — Common. End May to early July. 



295. M. At/antica, Grt. — Rare on the whole. June and July. Trea- 

 cle. Not observed previous to 1896, and not met with every year since. 



296. M. radix, Walk. — Common at treacle. June. 



297. M. Ncvadcp, Grt. — Rare. Treacle. June and July. In his 

 Kootenai list Dr. Dyar sajs that a form occurring near Kaslo, B. C, is 

 the same as the Calgary species, and suggests Nevadce as the correct name, 

 with Canadensis, Smith, as a probable synonym. 



298. M. inva/iffa, Smith. — Very rare. Four specimens only, all 9 ? • 

 May 31st, 1902, June i8th and 19th, 1903. Method of capture not 

 stated on labels, but probably light. Prof. Smith has one of the specimens. 

 This, of course, differs from a Hadena in having hairy eyes, otherwise it 

 has a strong superficial resemblance to certain gray forms of Xylophasia 

 versuta, and might easily be mistaken for that species. It may best be 

 distinguished from it by the presence of whitish or grayish while patches 

 at base, in orbicular and claviform, and in s. t. space, especially near apex 

 and anal angle. The secondaries are duller smoky, without any of the 

 mother-of-pearl sheen which seems cha-racteristic of versuta. 



299. Af. trifolii, Rott. — Common, end June to Aug., but absent in 



some seasons. 

 Var. Oregonica, Grt. — One specimen, a (J , dated July 27th, 1898, 

 is sharply distinct from the rest of my series. I had it for some years with 

 Scotogramma phoca, to which I cannot help claiming that it bears more 

 resemblance, but where I admit its presence never satisfied me. Dr. 

 Barnes when viewing my collection in August, 1902., picked it out as this 

 var. o{ trifolii. It is of the average expanse oi tri/olii, but actual meas- 

 urement proves that my eye was correct in judging it to be broader in 

 wing than any of that species I have examined. In colour it is dull 

 luteous smoky throughout, and the maculalion is very indistinct. The 



