THE CANADIAN ENTOMOLOGIST. 155 



Described from two males and four females collected June, 

 August, and September. 1907, at Farwell Creek, South Saskatche- 

 wan, Canada. This genus is named in honour of the Saskatchewan 

 region, a very rich collecting ground in the Canadian northwest. 



Holotype— One male, Cat. No. 19213, U. S. N. M. 



Allotype— One female. Cat. No. 19213, U. S. N. M. 



Paratypes — One female in collection of the Boston Society of 

 Natural History; one female in collection of the Massachusetts 

 Agricultural College and a specimen of each sex in author's collection. 



GEOMETR^ID NOTES— NEW SPECIES AND VARIETIES. 



BY L. W. SWETT, BOSTON, MASS. 



Stamnodes blackmorei, n. sp. 



Expanse 21-27 mm. Palpi very short, head dark brown, 

 antennae mottled brown and white. Thorax and abdomen fuscous, 

 of about the same colour as in Diastictis inceptaria. Wings full 

 and rounded, the general colour fawn brown, as in inceptaria. 

 The insect at first sight looks like gihhicostata Walk., to which it 

 is closely allied. Fore-wings form base to outer two-thirds clear 

 fuscous, except at costa, where they are heavily shaded with brown. 

 About one-fourth out from body the costa is intersected by a white 

 dash and about the middle there is another white dash, followed 

 by a large brownish patch, which extends to the median vein. 

 Beyond this is a broad white band running from costa, at a slight 

 angle, to median vein; then curving inward toward the body and 

 almost disappearing as it nears the inner margin. Bordering this 

 white line at costa is a very dark brown and black patch,, some- 

 times square, sometimes elongated. It is very distinct on all 

 specimens, and is edged outwardly with yellow, followed by two 

 white spots on edge of costa, then a black dot at almost apex of 

 wing. Fringe light brown, with black checks at ends of veins, 

 heavily shaded with dark fuscous from outer to inner margin. 

 Discal dots absent, or, if present, to small too be apparent. Hind 

 wings of same colour as fore wings. Viewed from beneath, the 

 difference between this species and gibbicostata is most apparent. 

 Fore-wings beneath darker than above with a rosy hue, the brown 

 markings on the costa above being replaced by reddish beneath. 

 There are the same white spots to the extra-discal band, and the 



May, 1915 



