198 



The mime Couperi "will nevertheless stand ibr this species; for 

 Mr. Edwards has recent!}' called my attention to the fact that in 

 describing Pembina he stated it to be allied to tlie Californian 

 Pheres Boisd., while i/i the same connection he described a Califor- 

 nian butterfly {Bclirii) as belonging to a distinct series of wliicli 

 Lygdamus Doubl., was the type. The insect, therefore, which we 

 have been calling Pembina cannot be that species, and hence this 

 northern Glaucopsyche was described for the first time by Sir. 

 Grote. What the true Pembina is, remains to be determined. 



The southern Glaucopsyche, called Lygdamus by Doubleday, is 

 probably distinct from Couperi. I have not yet detected any dif- 

 ferences in the abdominal appendages of tlie male:^, 1.)Ut that is 

 hardly to be expected, since in these parts the distinction between 

 closely allied species in the Ephori is always exceedingly slight; 

 southern specimens of Glaucopsyche, however, differ from the 

 northern, in having a more glossy reflection of the upper-surface in 

 the males, a narrower dusky border of the same in the females, and, 

 in both sexes, a paler tint on the under-surface, and a tendency to 

 much larger spots, in which the black central portion predominates. 



A specimen of this species in my collection (from Kanawha Co., 

 W. Va.) has the right fore wing longitudinally crumpled in a slight 

 degree, the fold passing along the middle of the cell ; beneath, a 

 little before the extremity of the cell, and also a little before the 

 second sub-marginal spot, is a small roundish black spot, almost 

 wholly overlaid by a powdering of hlue scales, of the color 'of the 

 upper-surface, as if there were a partial inversion of the npjier- 

 surface, caused by the fold. 



The synonymy of these species will stand as follows : 



1. Glaucopsyche Lygdamus Scucld., Rev. Am. Butt., 33. 



Lycaena Lygdnmui^ Donbl. Entoni., 209. 



Ciipido Lygdamus Kirby, Sjn. Cat. Lep., 365. 



f Lycaena Antiacis Boisd., Ann. Soc. Ent. France, 1852, 300. 



2. Glaucopsyche Couperi Orote, Bui. Buf. Soc. Xat. Sci., I, p. 185 (printed 

 Nov. 5, 1873). 



I,ycaena PemMna Edw., Syn. N. Am. Butt., 37. 

 Glaucopsyche Pembina Scudd., Rev. Am. Butt., 34 [not Lycaena 

 Pembina Edw., Proc. Acad. Xat. Sci. Philad., 1863, 224]. 



