THE CANADIAN ENTOMOLOGIST. 47 



wings black. The white spots at ends of veins faint. Discal spots 

 oblong instead of round ; not so prominent as in Pandora. Under side 

 very thinly scaled. Markings as above, only very faint. 



Female expanse, two and five-eighths inches. Dull, smoky brown, 

 dusted with white between t. p. and t. a. lines on primaries, otherwise 

 very uniform over both wings. Lines as in male, but still fainter. Under 

 side same colour, somewhat pinkish at bases of wings. T. p. line very 

 faintly indicated ; otherwise, except the discal spots, there are no markings. 

 Types : two males, one female, in my collection from Salida and 

 Glenwood Springs, Colorado. 



Tolype Glenwoodii. n. sp. — That there are two species confused 

 under the name of Distincta, French, I have been convinced for a long 

 time. On showing them to Prof French recently, when he was 

 visiting me, he was very positive as regards their distinctness. Prof. 

 Dyar, to whom I sent a pair of each for an opinion, regards them as mere 

 varieties, on the grounds that he finds no constant marks of distinction 

 between them. I have before me a series of eight pairs of Distincta and 

 eight males and two females of Glenwoodii, and while constant differences 

 in maculation of the two are rather hard to describe, yet there are 

 points which seem to me to prove their distinctness beyond a doubt. 

 Glenwoodii is a much broader-winged insect, by measurement the fore 

 wings of the female being one-sixteenth of an inch broader than the 

 females of Distincta. The thorax is apparently much larger. This is 

 partially at least due to the greater development of the hairy vestilure. In 

 the two females before me the abdomen does not protrude beyond the 

 wings, while in all the female Distinctas it does to the extent of from one- 

 eight to one-fourth inch. The whole insect is heavier and more robust, 

 shorter, broader winged, while Distincta is slighter and more trimly built, 

 with rather long, narrow wings. In colour the Distinctas are all 

 decidedly gray, in only two females does there seem to be a tendency to 

 white on the thorax. The Glenwoodiis are all of a very light gray, 

 almost pure white on the thorax. The hind wings are (piite distinct in 

 the two species. In the new one they present a well-marked, banded 

 appearance, the bands being distinct and quite sharply defined. The 

 marginal band is light and narrow. The submarginal quite dark and 

 broad. The mesial band is of about the same width, and light. Within 

 this the wing is dark, but lightens somewhat towards base. In Distincta 

 these bands merge gradually into each other, there being much less 



