32 THE BUTTERFLIES OF SWITZERLAND 



iiit'iequently in Switz. At Esiuo above Varenna about '20 per cent, are of this 

 form (it/m Ftti.).] 



(d.) size of spots and breadth of border up.s. 



[Obs. — The forms named in Tutt's "British Butterflies, " pp. 1(16, 167, only 

 partially apply here. So far as my experience goes, the broad marg. f.w. and 

 V. distinct and rather large spots h.w. always occur together ; and, similarly, 

 the narrow border f.w. gen. goes with smaller spots h.w.] 



" In the Basses Alpes the blk. of the border has practically disappeared, 

 leaving in some specimens only faint gr. ocellations, e.g., Digne, vi. /99." 

 {R.-Brn., in litt.). This form I take to be : 



ab. Punctata, Tutt. 



(e.) tendency to lighter grd. col. un.s., 

 culminating in : 

 ab. Pallida, 'intt .- " S wh., $ pale ochreous." 



(f.) tendency to obsolescence of spots mi.s. 

 ab. Obsoleta, 'I'utt ,• in wh. the tendency is marked. [I took a 3 

 at Valiorbe, viii. 10/02, with right h.w. only of this form : — 

 both f.ws. are ab. Striata.] 

 ab. Cinnus, Hb. .- spots on h.w. not ocellated. 



(g.) tendency of spots un.s. to coalesce. 

 ab. Striata, 'J'xtt ,• in \\h. they are more or less joined into streaks. 

 ab. Arcuata, Wcijmcr : in wh. the lowest basal spot f.w. is joined 

 to the lowest of the cl. row by an arched streak. 



P. Bellargus, iloU. (Adonis, lib.) ; 82mm. Fd. pit. 



Genista, CoroniUo, Trifuliiint, Hippocn'/iix (•(ni>n<ia : hyb. 1. 

 3 brilliant sky-bl., 9 bi'ti. 

 Dist. Char, col., in connection with distinctly chequered fringe. 

 9 distinguished from Cori/do)! ? by its much darker gr. col. 

 and fringe-markings. In Switz., at any rate, it is really in- 

 excusable to confuse thenL Hi/la>i has wh. fringes. 



Log. Gen. distributed and often c, esp. in the lowlands and 

 lower slopes, clearings of woods, &c., v.-vii. and viii.-ix., but 

 mounting as high as 5000ft. or even 6000ft., e.;/., ab. at Berisal, viii. 

 /97 (Wh.); Zermatt (For.). Finest in S. Iocs. 



Directions of Yar. (a.) tint of grd. col. in S ■ Of the two usual 

 shades it is suggested (Tutt, British Butterflies, p. 170) that 

 the type name should be reserved for the more lilac, and the 

 name 



var. Adonis, ///>., be applied to the more brilliant and greener form : 

 2 other shades are occasionally found : 



ab. Pallida, TKtt : paler, nearer in col. to Ali'.ris. and 



ab. SufFusa, T>itt .• of a darker, more leaden bl. 



(b.) amount of bl. up.s. 2 , culminating in : 



ab. 2 Ceronus, {■'■y., wh. has bl. like the S extending to the or, 

 boi'dev. 

 Loc Ttie nilerniediale forms are often c, the extreme form is 



