252 THE CANADIAN ENTOMOLOGIST. 



exclusively confined to Colorado. I have a badly-iubbed specimen from 

 Field, B. C, which I take to be this species. The type is a (^ in the 

 collection of Dr. Ottolengui. 



404. A. epigcea, Qn. — 7'\vo (^ o j^'ly ^yth, 1S98, and Aug. 21st, 

 1903, and a 9 July 27th, 1904, the latter marked " dusk," are all I have 

 in the collection. It was only when finally touching up these notes for 

 sending to press that I noticed that I had two species under amp/a, and 

 after a careful comparison with Dr. Ottolengui's figure, I have little doubt 

 that the three I have picked out are epigcea. Once recognized as distinct, 

 their difference is rather obvious. The ground colour is dark silvery 

 ashen gray, without the obvious purplish shading of «;;/^/a. There are no 

 blackish marks near apex and anal angle as in avipia, arjd the t. p. line is 

 not bordered anteriorly throughout its length by black, and does not meet 

 the inner margin quite so near the anal angle, which in this species is more 

 obviously falcate. One difference in the sign ap|)ears to be that in the 

 present species its inner portion touches the median vein on the t. a. line, 

 whereas in amp/a it touches it at a point slightly further from the base. 

 This holds in my specimens, and is seen even more clearly in Dr. 

 Ottolengui's figures, but the slight variation in my short series of both 

 leads me to doubt its constancy. It is quiie probable that I have sent 

 away a few as ampla. 



405. A. ainpla, Grt. — Rare. I have only six specimens at present 

 in the collection, bearing dates from July 7th to Aug. 6th. Light. 



406. A. falcifera., Kirby. — Fairly common. End June to early 

 Sept. Flying in daytime and at light. One specimen quite fresh on May 

 8th, 1900. Dr. Ottolengui's paper tells us \\v\i falcifera is the gray form of 

 the species, and " was described from Nova Scotia, and it is noteworthy 

 that in the north the brown form is rare." Simplex is the darker, brown 

 form, and " was described from New York, where the brown form is 

 common." The majority of Calgary specimens fall between Dr. 

 Ottolengui's figures of the two forms, and 1 have nothing quite matching 

 either of those extremes, but some are darker than Dr. Holland's figure, 

 though less red. Though distinctly brown specimens occur, the general 

 tendency is towards gray, at the expense of brown. By far the grayest 

 specimen I ever saw was a Regina specimen of Mr. Willing's, dated June 

 i6th, 1904. 



407. A. Jiasema, Bdv. — A single ? tiying in sunshine on Sulphur 

 Mt., Banff, Aug. 13th, 1900, at a little over 5,000 feet, has been seen by 

 Dr. Ottolengui. (To be continued.) 



