﻿T.ÉriDOPTEROLOGIE COMPAREE SI 



The figures of Argus in the 4th Fascicule of the Lépidopté- 

 rologie appear to belong to Argus, except Figs. 291 and 292, 

 Argus-Aegina, Fig. 301, and Argus-lnsularis, Figs. 305, 306, 

 which belong to M'icr argus. Argus 'Nevadensïs, Figs. 259, 260, 

 is puzzling, it looks most like Aegus, it may be Argus, but 

 I think it highly probable it is really Aegon, as there is so far 

 as I know, no other record of Argus from Central or Southern 

 Spain. 



It seems désirable to enquire whether Aegus is in any way 

 related to Zephyrns (or Lycidas). 



Zéphyr us differs frora Aegus as regards the ancillary appen- 

 dages in having the falces shorter and thicker, and in the harps 

 of the claspers having very much fi.ner teeth, being thus further 

 from Argus. It also has a fold in the middle of the clasp, that 

 is not présent in either Argus or Aegus. It is curious that 

 Zephyrus from Greece, Turkey, and Spain and Lycidas from 

 Switzerland agrée very closely, but a spécimen I hâve, labelled 

 Armenia, has a harp with a longer narrower neck. Pylaon agrées 

 very closely with Zephyrus, especially in the fold in the middle 

 of the clasp, but the end of the harp is quite large and spathu- 

 late, so much so, as in the absence of intermediates to be by itself 

 a good spécifie character. Eitrypilus (with a dark upper side 

 in the cf) is again very similar but has no duplication in the 

 middle of the clasp and the neck of the harp is rather long and 

 the head very narrow. Notwithstanding thèse apparent relations 

 to Zephyrus, Eurypiliis, as shewn by the asdeagus, is not a 

 PlebeJus, but a Polyommatus. 



The question arises as to whether, the three forms, Micrargus, 

 Melissa and the European Genevan form Aegus are to be 

 accepted as three distinct species, or as races of one species. 

 Until we get a little more light on them, as by a comparison of 

 life historiés and early stages, it seems désirable to regard them 

 as three species, since the différences in character of the ancillary 

 appendages are more than may be taken to be varietal, and they 



