﻿LEPÎDOPTEROLOGIE COMPARÉE 49 



and the hind-wings of some female Argus, var. Armoricanus, 

 hâve the orange band nearly as slraight and clear as in Aegus. 



The marginal spots may be described as being in Argus a row 

 of definite and distinct ocelli, not diffîcult to recognise as such, 

 but in Aegus the orange band is so broadened and straightened 

 and the inner row of black spots so lifted up that to regard the 

 spots as a séries of ocelli is much less easy. 



M. Oberthùr has called this Genevan species, var. Lignrica 

 and it becomes therefore necessary to enquire whether it is really 

 entitled to the name. In the Lépidopiérologie comparée, Fasc. IV, 

 M. Oberthiir figures (Figs. 291, 292) two spécimens from North 

 China (and Manchuria) as Lïgurica, thèse are of the Asiatic form 

 that is probably not conspecific with the Genevan insect but is 

 very closely related to it. He also figures (Figs. 293, 294) two 

 spécimens from Cernobbio which are with equal certainty Argus. 



We hâve hère a valuable ilhistration of M. Oberthiir's law as 

 to the necessity of a good figure. One may be as certain of what 

 thèse spécimens look like as if one had the actual spécimens 

 before us. Fig. 291 shows the pale border and the crescentic 

 black spots, 203 has no pale border and the black marks hâve 

 the definite arrowhead form, though not strongly marked. 

 Following up Ligurica we find that it originated with Cour- 

 voisier, who figured it in Iris, Vol. XXV, PI. II, Fig. i. This 

 figure is more like the Genevan species than like Argus, but hère 

 we hâve to do with figures, not by Culot. The spécimen is from 

 Lugano and it is most highly probable that it is the same race 

 as M. Oberthiir's figures of the spécimen from Cernobbio and 

 as I hâve from Locarno, and one from Lugano (Monte Bré) 

 (which are almost identical with the Cernobbio figure), both of 

 which are Arg7^.s. 



Courvoisier's figure is Genevan in the white border, but his 

 next figure (Fig. 2) has also a white border. This is a spécimen 

 of Argus from the Pfynwald. Now I took a good séries in the 

 Pfynwald in 191 3, which no doubt are of the form figured. They 

 are large and pale (var, Nivea, Courv.) and when I first saw then) 



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