ARICIA MEDON. 259 



i. ab. discreta, n. ab. — Specimens in which the discal row of spots on the 

 forewing is moved outwards towards the orange lunules. 



This is, in this species, a common form of aberration in all races 

 and in both sexes. It is often very pronounced. 



Zeller notes (Ent. Mo. Mag., vi., p. 48) the capture of a small 

 example in which the transverse rows of ocellated spots was placed so 

 near the red fascia that on the anterior wings the innermost and on 

 the posterior wings the 3rd, 4th and 6th were quite confluent with the 

 black bordering of it. 



k. ab. glomerata, n. ab. — Specimens in which the discal row of spots on the 

 forewing is crowded round the discal spot. 



This is a much less usual form of aberration in this species than 

 ab. discreta, but is not scarce. It is specially apt to occur in var. 

 nazira. 



X. ab. subtus-radiata, Obth., " Etudes," xx., p. 24, pi. iv., fig. 51 (1896). 

 Radiata, Obth., " Lep. Comp.," iv., p. 253 (1910) ; Courv., " Ent. Zeits.," xxiv., 

 p. 126 (1910). — The wings strongly rayed with black bordered with clear white 

 (Oberthiir). 



The rays are formed by the extension of the inner black edging of 

 the orange lunules till they join the discal black spots, which are 

 generally pla.ced near them as in ab. glomerata. The specimen 

 illustrated by Oberthiir was taken in Auvergne. In the Brit. Mus. 

 coll. are two specimens of this form, but all details are lacking, as is 

 usual in the Mutzell coll., to which these specimens belong. 



ix. ab. elongata, Courv., "Ent. Zeits.," xxiv., p. 112 (1910). — In which the 

 eye- spots are drawn out into streaks or wedges (Courvoisier). 



This form, in which some or all of the discal row of spots are 

 elongated on the fore or hindwing or on both, differs from the previous 

 ab. in the fact that there is no union of the discal spots with the inner 

 edging of the lunules, the former being merely lengthened. Courvoisier 

 reports two instances. Cases in which this occurs on both wings are rare, 

 but those in which one or more of the discal row, especially on the 

 forewing, are elongated are, on the other hand, very common. Any of 

 the spots except the costal may be so elongated, but the extension of 

 either part of the geminated spot at the anal angle of the forewing is 

 very unusual. The spot most generally affected is that immediately 

 above the double spot, and the elongation of the two above this is also 

 quite common. The hindwing is more rarely affected, perhaps the 

 spots just outside the two central ones of the row are those least rarely 

 elongated. 



A curious aberration combining the elongata form to some extent 

 with the postico-obsoleta is described and figured by Weston (Ent., xii., 

 p. 185), in which the upper portion of the discal row is lengthened on 

 the forewing, the lower spots also showing this tendency but being 

 indistinct. The hindwing shows but few of the usual spots, but the 

 first spot of the discal row is joined to the first of the basal row (ab. 

 costajuncta, n. ab.). The ground-colour of this specimen is almost 

 white. It was taken in Surrey in 1878 by Mr. W. B. Farr, and 

 presented by him to the late Mr. Carrington. 



7. ab. suffusa, n. ab. Astrarche ab., Pickett, "Ent. Kec," xii., p. 272 (1900). — 

 An aberration wtth the underside white with suffused black dots (Pickett). 



The specimen described was taken at Folkestone in the latter half 

 of August, 1900. 



