A\n THF. AT.PS OF C'F.NTR AT, ET'IiOPF. 27 



and 5 on left \v. ; 4 c^ s, 2 9 s with 7 ; one of the i s with 7 ^pots has also " a 

 small but distinct basal spot on each f.w." (Ent. Eec, xiv., :^;-i;j). I have also 

 a i with these basal spots, which has 6 spits on the licht wing and 7 on the 

 left — the reverse of Mr. Lowe's.] 



(c.) diminution of bl. in $ up.s., culminatins? in : 

 ab. ? Andereggii, IVnhl : almost, often quite, without bl. ; lar^e 

 spots un.s. esp. on h.w. 

 Loc. So far only in the Valais and the nei.^hbonring parts of 

 Vaud. Veytaux, iv. e. 97 ; Lavey, v. 24 01 ; v. 10 02 ; Sierre, v. 

 7 02 ; Sion, v. 22 02 (II'A.) ; Martiyny, Branson, Saillon (/-Vfc.) 



(d) col. of un.s. h.w., varying from deep sky-bl. to It. emerald 

 grn. 



N. Melanops, ]'uh\\ ; 25mm. Fcl. pit. ])<>riiruiiiin 



cU'cioiibi'Hs. 

 $ brt. bl., $ blackish-brn. with bl. suffusion. 

 Dist. Char, row of spots un.s. f.w. greatly increasing in size from 

 costa to below the middle, h.w. scarcely sprinkled with bl. at 

 base; further distinguished from ('>/llan(s ab. JUacliicri by a 

 faint margl. row of lunules un.s. h.w. 

 Loc. A correspondence with ^Ir. Elwes has elicited the fact that 

 it was undoubtedly this sp. and not ('i/llarns ab. Bladiicii that he 

 took nr. Sion in the 2nd week in ]May, /87. These are the only 

 Swiss specimens known, though the sp. has frequently been looked 

 for since in the same loc. ; being small and v. local, the exact spot 

 may have escaped detection, or the insects may have been passed 

 over as small t'l/Uanis, wh. is ab. nr. Sion. 



Digne, iv. 5 02, c. (U.-Jlni.) ; ab., esp. in the Bois du Rocher 

 Coupe, V. b. 91 (Joiu's); iv. e. /97, perhaps the most ab. " blue " 

 {Ti(tt). Vallon Obscur, &c. {linn.) ; Cannes, iv. /98 (Tiitt) ; on 

 thyme, up to about 2500ft. {I'onrll). 



Directions of Yar. (a.) extent of bl. up.s. 2 . 



(b.) diminution of spots un.s., those on h.w. 

 being sometimes not ocellated. 

 [Obs.— This is not ab. Marchandii, B>tdv., as apparently supposed by /.'/•)"., 

 this ab. being without spots un.s. f.w., and being so far confined to Catalonia.] 



Genus, Polyommatus, Lair. 



P. Eumedon, Hsp. (Chiron, J!<>lt .■ Antiqua, ///////) ; ;Uinm. 



I\l. pit. seeds of Gcranimn mniinininiin and ii. jirati'nsi'. 



Brt. dk. brn. S without, ? gen. with or. spots at anal ang. 



up.s. h.w. 



Dist. Char. un.s. h.w. a wh. streak extending from disc, spot almost 



to out. marg., more or less wedge-shaped, t/ir jioint of tlir imli/i' 



hcimi toiranh the umrif. 



Loc. Not gen. c, but mounting up to G000ft..or move, vi.-vii.; 



