20 BRITISH BUTTERFLIES. 



the spotting of the underside through the wing, so as to be seen from the 

 upperside. Other examples (subsuff'usa) have a similar patch, suftusedly 

 semitransparent, roughly triangular, extending from the discoidal 

 near the costa towards the apex, then down inside the marginal band and 

 nearly to anal angle, then sharply back to just within discoidal again. 

 It is strangely almost the same area that is so well-marked with black 

 scales in ab. maryinata, but the development of the two forms is 

 entirely different, the one (subsuff'usa) largely due to failure in the 

 normal scaling, and the other (marginaia) to a great excess of the 

 normal scaling, or rather a spread of the black marginal scaling over 

 the ground colour of this portion of the wing. Three specimens in the 

 British Museum coll., strongly suffused with grey, appear to be suffusa 

 (1) a small $ (labelled "England, Harper"), (2) a large $ ("Folkes- 

 tone, Bates' coll."), (3) another large $ ("? Holland, apennina, ex 

 Staud."), but with no resemblance to Zeller's two specimens of 

 apennina just above them. They are nearer (but yet very far from) the 

 greyest of the Hyeres (var. meridionalis) examples, being strongly 

 suffused with grey, and having the appearance of having been damped ; 

 in reality they are sparingly scaled with black, more particularly on 

 the outer part of the wing beyond the discoidal lunule, the basal area 

 more normal ; both the larger examples have discoidal spots on the 

 forewings. Hodgson has a $ , from the Dover district, of a 

 drab colour, with a suspicion of bluish at the bases of the wings, 

 and indistinct discoidals to the forewings, the underside being very 

 brown for a $■ and well spotted. Another $ in the same coll., also 

 from Dover, is almost dove-grey, with a narrow marginal border and 

 fringes quite white ; the underside has also a very suffused dull 

 appearance, the spots appearing blurred (as if washed). Griebel 

 notes a specimen taken at Speyer in the Palatinate together with 

 transitional forms. 



/3. ab. plumbescens, Tufct, " Proc. Ent. Soc. Lond.," p. lxxx (1900). — A leaden- 

 coloured S , in which the discoidal lunules of the forewings are well-marked, 

 apparently an extreme form of the suffusa series, captured at Jaca (on the Spanish 

 side of the Pyrenees) by Dr. M. Burr, June 10th, 1904. 



y. ab. albescens, Ckll., "Proc. Sth. Lond. Ent. Soc," p. 99 (1887). 

 ? Apennina, Shipp, " Ent. Bee," v., p. 98 (1894); Tutt, "Ent. Bee," v.. p. 160 

 (1894). — The metallic colour replaced by white (Cockerell). 



Just what Cockerell had in his mind, when he used this name it is 

 difficult to say. Two British examples have been recorded that may 

 belong here. The first is noted by SShipp as " a singular example from 

 Bournemouth approaching the var. apennina, Zell., in which the light 

 bluish colour had altogether faded to a whitish tint, but the markings on 

 the underside, though very indistinct are, nevertheless, well defined." 

 The other is in our own British coll., and is recorded as " a pale ab. 

 of A. corydun, captured at Cuxton, in July, 1886, and probably to be 

 referred either to apennina or albicans." 1 It is, of course, nothing Like 

 either, but satisfies Cockerell's definition very well, and appears not to 

 show any pathological tendencies. Gauckier states that he took a 

 transition to var. albicans, Hub. (!), on the Michselsberg near Bruchsal, 

 on August 18th, 1901 ; this, too, may belong here, though from a 

 remark like, this one cannot judge. One wonders also what the males 

 are like that Norris obtained from the (Yrfosa di Pesio in July and 

 August, 1892, and described as being " very white above." 1 [ere should 

 probably be referred, also, a specimen taken by Lowe at- Uormio on 



