42 THE BUTTERFLIES OF SWITZERLAND 



ab., and thence to Ganter Bridge, vi. 25/01 (Sloprr), vii. m. /98 ; 

 vii. 8/01 (n7(.); same date /02 {S/idih}ji), Sec, &,c. ; from Visp 

 to Stalden, Huteggen, Baltschieder, and Val d'Anniviers, vi.-vii, 

 (Fiu:) ; St. Nicholas, vii. 18/98 (Loire) ; vii. 19/98 {Jllcm.) ; Folla- 

 terre, vii. 22/99 {U'schl.) ; Gemmi, 2 $ s {Stau^lcn). 



Stresa, meadows nr. lake, vi. b. '87, a few ; x. /99, a ^ and $ 

 smaller, presvimably a 2nd brood (Jones). 



Directions of Yar. (a.) up. s. h.w. (?, eye-spots showing or. edges, 

 (b.) up.s. h.w. 2 , absence of eye-spots, 

 (c.) iin.s. h.w. tendency of wh. band to be- 

 come less distinct, 

 (d.) shade of grd. col. un.s. 



R. Argus, /.. (^Egon, Srlu'tf'. ; Argyrotoxiis, Birj.'.tr.) ; 



27mm. Fd. pit. TrifuUnut, Genista seoparia, Ononis spinosa, 

 Colntea arborescens, &c. : hyb. ov. 

 [Obs. — The confusion wh. always seems to exist between this and the 

 following sp. has been materially increased by the discovery that the name 

 Argus, L., by which the latter has been universally known, ought to be applied 

 to the sp. generally called A-lgon. It is greatly to be regretted that the discovery, 

 wh. serves no scientific end, was ever made, or that having been made, the 

 discoverer did not suppress the useless fact. Unfortunately it is but too little 

 realized that nomenclature is only a means to an end, and that that end is the 

 illustration, and, so to speak, the condensation of scientiric facts, rather than 

 a reproduction of the confusion of Babel.] 



3 lilac-bl., 2 brn. 



Dist. Char. J rather broad suffused blk. border up.s., ? propor- 

 tionately large eye-spots un.s., esp. f.w., and grd. col. gen. 

 darker than Arifj/roi/nonhDi 2 , making the wh. band more 

 conspicuous : some $ s are, however, difficult to distinguish. 

 [Obs. — The claw on the front tibia of this sp. requires a fairly strong lens to 



distinguish it, so does not afford a ready means of identification, though useful as 



a final resort. It is, however, a mere prolongation of the upper j)ortion of the 



joint, and absurdly inadequate as a (jencric distinction.] 



Log. V. gen. distributed over the whole region in woods and 

 clearings, on roadsides and riverbanks, alpine slopes and pastures 

 up to the tree-limit : sometimes in endless profusion ; v.-vi. and 

 vii.-viii. ; in the ratns. vii.-viii. only. 



Directions of Yar. (a.) increase of size up to 32mm. (in the 

 hotter Iocs. ; the largest I have ever seen come from Sierre, 

 and from the Rhone banks at Bouveret). 



(b.) diminution of size, culminating in : 



var. Alpina, lleire: not exceeding 23mm., sometimes less; ^ 

 with rather darker grd. col. 



Loc. The usual form in the higher mtns., c//., Borisal, vii.-viii. 

 ,98, and vii. b. /02, extremely ab. (HV/.) 



(c.) tendency to obsolescence of metallic 



spots un.s. h.w, 

 (d.) tendency towards disappearance of wh. 



band un.s. h.w. in 3 . 



