71 



13, and Treat's Island, Eostporl, Mo., July 16 (ShurtlcfF, Mus. B. S. N. II.); 

 Mounl Washington, New Hampshire, July (Morrison); Kenosha House, 

 Colorado, June 30 (Mead); California (Edwards and Behrens); "Canada" 

 (Gucnc'e). 



This seems to lie a more common species in California than in the East- 

 ern States, though it is widely diffused over the colder portion and alpine 

 regions of the country east of the Rocky Mountains. It is quite closely allied 

 to G. polata, but differs in the fore wings being more obtuse at the apex, and 

 the costa more convex. It may be recognized by the numerous, parallel, 

 scalloped, blackish-gray lines; the large, distinct discal dot; the general steel- 

 blue gray color of the wings; the very few yellowish scales; and by the 

 entirely clear, pale, smoky, flesh-colored hind wings. 



On examining M. Guenec's collection, I recognized it from memory as 

 his Spargania magnoliata ; and Mr. Morrison has since informed inc that he 

 identified it as such from M. Guence's description, with which it agrees well. 



1 can find no differences between two specimens from the Atlantic States 

 (one G. and R.'s type from Buffalo, and one from Maine, collected by myself), 

 and twelve examples from California, collected by Mr. Edwards. It seems 

 to be much more common in California than in the East. It is nearly related 

 to G. polata. 



The Colorado male (length of fore wing, 0.G2 inch) is much larger than 

 three females from New York and Northern New England ; the length of 

 the. wing of the largest being 0.55 inch. The Californian specimens are also 

 much larger (the fore wing of the largest female measuring 0.63 inch). Of 

 nine Californian specimens, three are of the same size and the rest larger than 

 eastern examples. There is, however, scarcely any difference in the shape of 

 the wings, though the Californian specimens have on the whole very slightly 

 more acute, wings. 



Glaucopteryx implicata Packard. Plate 8, fig. 18. 



Larenlia implicala Gnen.!!!, Phal., ii, 284, 1857. 



Cidaria muUiMueata Pack., Proc. liost. S. N. II., xiii, 403, 1871. 



2 <?, 2 ?. — This species is closely allied to G. magnoliata in the shape 

 of the wings, but the costa is much straighter, and the apex more acute. 

 Eront gray, a chocolate-colored band between the antennae ; a black spot on 

 the front of tin; basal joint of the antennas; vertex behind the antennae whitish. 

 Orbits and palpi reddish-brown, the latter white beneath at base. Prothorax 



