330 THE ENTOMOLOGIST 



width of the border usually varies but little, yet occasionally 

 there is a form in which the band broadens out, especially on the 

 secondaries, and encroaches upon the spaces usually occupied by 

 the dark band, which is entirely absent, as also are the bluish 

 spots. On the primaries the dark band is present, but the bluish 

 spots are missing, and the ground colour inside the band is much 

 more reddish than in typical specimens. This is the form known 

 as lintne7\ a specimen of which is figured on Plate II., fig. 186. 

 Known from all other butterflies by the dark colour and yellow 

 border. This species occurs throughout New England. The 

 peculiar form of this species which I have figured is usually 

 produced from insects which are typical, and about one in five 

 hundred is said to assume these peculiar colours, which is 

 probably due to the law of reversion. The specimen figured was 

 slightly deformed." 



Scudder, in his splendid work, ' The Butterflies of the Eastern 

 United States and Canada,' now in course of publication, says 

 that the first example of hygiaa which came under his notice was 

 in the collection of Mr. T. L. Mead, and had been taken in 

 Albany. He describes it as follows : — " The upper surface .... 

 (excepting the mottled costal border of the fore wings) is uniformly 

 maroon, as far as the outer of the two yellow costal bars of the 

 norm, and nearly as far as the inner edge of the blue spots of the 

 norm; beyond this the whole outer portion is of the normal 

 yellow, grizzled with brown, as in the upper part of the fore wing 

 normally ; there is no inner costal striga on the fore wings ; 

 beneath these are similar peculiarities, with only slight traces of 

 ferruginous on the outer edge." Another specimen, in the 

 collection of Mr. Denton, taken in Ohio, is said to differ from the 

 one just described " in that the yellowish margin of the hind wing 

 is very much broader on the right side than on the left, being more 

 than double the normal width, and having a nearly straight inner 

 margin, suppressing not only the black band which should border 

 it on the inner side, but also the blue spots included in this border. 

 These blue spots are, moreover, wanting in all the other wings, 

 excepting a few scales in the lower median interspace of all the 

 wings, and the upper median interspace of the left hind wing." 

 Quoting Mr. S. L, Elliott, Mr. Scudder goes on to say that " of 380 

 specimens of one brood twenty-five examples were aberrations : — 

 ' Two of the varieties were lintneri, from which all the blue had 

 disappeared; the third had the primaries lintneri, while the 

 secondaries had the usual blue spots; the fourth had the 

 secondaries lintneri, while tlie primaries bore the blue spots. In 

 the remaining twenty-one the whole upper surface of the wings 

 had a mottled appearance, showing that the colours had been 

 disturbed. They retained the blue spots, but the spots were much 

 smaller than usual,' " 



