8 



eastward from which we have received specimens is Hymers, Out.. 

 north of Lake Superior, but we should not be surprised if it were 

 found through Northern Quebec and Labrador. As in Europe the 

 species appears to be single brooded, occuring generally in July and 

 August, although some of our Vancouver Is. material (doubtless due 

 to the early spring) was captured in late June; a partial second brood 

 occurs in some of the southern localities (Alameda Co., Calif.) in 

 October; we have received small specimens from Mission San Jose, 

 bred from larvae on willow, emerging in late October. 



The North American specimens before us show either a decided 

 reddish or else a smoky tinge ; some are strongly and clearly marked 

 as in fuscoundata Don. {vide Seitz, Palaearct. Geom. IV, PI. 10 k), 

 others are much suffused (obscura Peyer) ; we have seen no entirely 

 green specimens corresponding to sordidata Fabr. although a few 

 specimens from Vancouver Is. show a slight greenish tint mixed with 

 the red. The American varieties listed by Mr. Swett under furcata 

 (C. Ent. 43, p. 82) must, we believe, with the exception of pcficlata 

 Swett be removed from this association and treated (at least partially) 

 as good species. With regard to periclata Mr. Swett has examined 

 the type specimen and informs us that the uncus is broken off but 

 that the basal portion is rather narrow and suggests that of furcata ; 

 it is evidently one of the suffused forms belonging to the partial sec- 

 ond generation to which we have already referred. 



We figure several of the marked varieties of furcata for which 

 we believe European names will for the present suffice ; distinguishing 

 characteristics may be found in the fourth (postmedian) dark band 

 of primaries which is practically perpendicular to inner margin from 

 vein 6, becoming attenuated to a mere line below vein 3 and generally 

 distinctly crenulate on its outer edge in costal portion; the fifth dark 

 band (subterminal) is well-removed from outer margin and strongly 

 crenulate on outer edge ; the pale spot often present in this band is 

 situated between veins 3 and 4 and is large, diffuse and not sliarply 

 defined. 



Hydriomen.\ quinouefasciata Pack. (PI. I, Figs. 7-9; PI. VI, Figs. 



10-11; PI. VII, Fig. 2) 



Among the slides we made of the preceding species we were sur- 

 prised to find a type of Uncus differing considerably from that of fur- 

 cata; the basal portion was much broader and the central apical area. 



