22 THE CANADIAN ENTOMOkOGtSl 1 . 



the species is readily distinguished by its having all the spots large and 

 white, with no black pupils ; they are usually roundish subquadratc and 

 tli use of the same series nearlv coalesce to form a continuous band. 

 California. 



2. N. Antiacls (Lyecena A ntiae is Bo'isd., Lycwna Mertila Edw.) The 

 blue of the upper surface of the wings in the male of this species is much 

 less pruinose than in the following two species, although it occasionally 

 varies toward them in this respect ; the normal color, however, is a deep 

 violet and the black border of the wings is of the same depth of color 

 and narrowness of extent as in those species. The upper surface of the 

 female is almost entirely brown with a few scattered blue scales near the 

 base of the wing running out toward the middle. Beneath, the wings 

 closely resemble those of N. Couperi, but the sprinkling of hoary scales 

 is nearly uniform over both wings. California. 



Lye. Mertila Edw. seems to me clearly referable to this species, since 

 the only part of the description which does not fit it is the statement 

 that, on the underside of the fore wings, " from the arc r (or transverse 

 bar at the apex of the cell) " a whitish ray runs toward the base." 



3. N. Couperi ( Glaueopsyehe Couperi Grote ; Lycccna Pembina 

 Edw. [Syn., nee. Proc. Phil. Acad.]* Lyecc// a Lygdamus Doubl. [List Brit. 

 Mtts. nee Kntom.] ) This species closely resembles the following, with 

 which it has often been confounded ; the two, indeed, would perhaps be 

 universally considered geographical races of a single species, were they 

 known to meet anywhere on common ground. The upper surfaces of the 

 wings of the males of the two species appear to agree altogether. The 

 upper surface of the wings of the female of this species is brown, rather 

 heavily suffused with c< crulean blue on the fore wings as for forward as the 

 upper limits of the cell, and to an equal distance toward the outer border ; 

 on the hind wings, the blue scales are more generally diffused, but in 

 much less abundance. Beneath, the spots are much smaller than in N. 

 Lygdamus, sometimes reduced on the hind wing to the merest black specks 

 encircled with white ; and the ground color is obscured, especially on the 

 hind wing, by a rather abundant powdering of grayish hoary scales. A 



V prolonged study of all the speeies of N. Ameriean blues leads me to the 

 conclusion that the true Lye. Pembina Edw. has been twiee redeseribed ; under the 

 names L. L;i<-<-ti Edw. and L. Rapahoe Eeak. 



