THE CANADIAN ENTOMOLOGIST. 59 



This species has nol yet been noticed on Vancouver Island, and is 

 not a common insect at Kaslo. 



I have marked as types three very perfect specimens, all taken by 

 Mr. Cockle at Kaslo. Two of these are in my cabinet and one in that of 

 the captor. 



The dates are June 7, 1906 ; June r, 1906, and May ir, [906. 



4. Eupithecia Slocanata, n. sp. — This species is also a near ally of 

 perfusca, but may be distinguished by the narrower and longer fore wings, 

 the very straight costal margins, the soft gray tone of the colouring of the 

 whole insect, there being no trace of the brown tints oi perfusca, and the 

 general indefiniteness of all the lines. The hind wings above are paler 

 and clearer of markings, aud the white spot at the tornus on the fore wings 

 is much more distinct than is the case in perfusca. 



The types are two specimens from Kislo, a male dated 30th May, 

 1907, and a female dated 27th July, 1907, in my own collection, and three 

 other specimens (loth July to ist August), also from Kaslo, in the cabinet 

 of Mr. Cockle. 



All the forms above mentioned, namely, E. perfusca, E. terin'uiata 

 and E. Slocanata, together with E. scelestata, were included by Dr. Dyar 

 in his '• Lepidoptera of Kootenai," under the name E. satyrata, Hubner 

 (a European species). This vvas no doubt entirely due to the insufficiency 

 of the material which he had before him at that time. He suggested, 

 however, that X\\t perfusca of Flulst might be the same thing, but he had 

 not enough specimens in hand to enable him to discriminate the forms 1 

 have here characterized. 



5. Xanthorhoe planata, n. sp. — I prooose this name for the insect 

 that is now passing in Eastern collections as X. fluduata. I have it from 

 Ottawa, New Jersey, Pennsylvania, etc., and it now appears among Mr. 

 Cockle's Kaslo captures. 



The differences between planata and fluctuata are not great, but 

 appear to be constant. The ground coIolh" oi ftictuata has very commonly 

 a slight greenish or yellowish tint, and the black markings are intense ; in 

 planata the colours are brown and brownish- or grayish-white. The 

 extradiscal line in fluctuata is gently rounded out from the costa, and 

 curves well inward between veins 4 and 6; m planata this curve becomes 

 almost triangular, and the angle above vein 6 is acute. The basal line 

 furnishes the best character. In fluctuata it is well rounded, having three 

 outward and four inward scallops, and the space within it forms a con- 

 spicuous dark blotch, \n planata the line runs out almost straight to eel). 



