110 BRITISH BUTTERFLIES. 



and left forewings normal. Right and left hindwings — spots 5 and 6 

 wanting. The basal spots also wanting. (3). $ . Taken at Arolla, 

 July 15th, 1906. Right and left forewings — spot 1 lacking. Right 

 hindwing — spots 2, 5 and 6 lacking. Left hindwing — spots 2, 5, 6, 

 7 and 8 lacking. The basal spots small but not altogether absent. 

 Grand records a $ taken at Pontused, May 23rd, 1906, in 

 which only two spots on the inner margin of the forewing remained. 

 Turner records (Proc. Sth. Lond. Ent. Soc, 1894, p. 50) a specimen 

 with only a trace of markings beside the discoidal spots on the upper 

 wings, captured in Gal way ; Dennis exhibited an example from Horsley 

 almost without spots on the underside of the wings (op. cit., 1896, p. 

 52) ; Robinson a similiar one one (op. cit., 1902, p. 105), taken at 

 Swanage in July 1902, whilst Wilkinson notes (in litt.) exactly 

 similar examples from Cumberland. Zeller states (Stett. Ent. Zt<j., 

 1877, pp. 293-4) that, at Bergiin, the eyespots on the underside 

 vary in size ; one $ with comparatively small spots on the forewings, 

 has, on the hindwings, on the costa towards the base, one small 

 spot, and besides only two still smaller ones between the discoidal 

 spot and the hind-margin. 



5. ab. semiobsoleta, n. ab. — With the spots on the underside of the forewings 

 present, but those usually present on the underside of the hindwings entirely 

 absent. A specimen in the Brit. Museum Coll. 



Blachier also notes (in litt.) a precisely similar example captured at 

 Geneva ; the 7 normal spots on the forewings being well-marked, 

 whilst those of the hindwings are quite obsolete. 



6. ab. striata, n. ab. — The submarginal series of spots on the underside of the 

 hindwings elongated into dashes or streaks of considerable but varying lengths. 

 This streaked form is noted as being exhibited at the meeting of the South London 

 Entom. Society, November 23rd, 1905, by Mr. Joy (Proc. Sth. Lond. Ent. Sue. 

 1905, pp. 92, 100). 



JF. ab. pseudolus, Bergstr., "Nom.," iii., p. 5, pi. 1., figs. 5-6 (1779). — P. P. P. 

 alis rotundatis integerrimis fuscis, subtus cinereis punctorumque ocellarium solitario 

 arcu, praeter unum in [disco] anticarum, ternosque in posticarum ocellos. Wings 

 rounded, uniform brown, beneath ashy-blue, with a single arcuate row of ocellated 

 spots, in addition one little eyespot in the middle of the forewing, and three in the 

 hindwing. Herr Esper has erred in the naming of this little butterfly, as 1 have 

 already remarked above (Bergstrasser). 



Bergstriisser's fig. 5 shows the upperside of an uniform fuscous- 

 black colour, except the extreme base which is tinged with blue. His 

 fig. 6 exhibits a very strongly-spotted form of the underside, the 

 ground colour blue-grey ; the forewings with six spots in transverse 

 series and the discoidal, all ringed with white ; the hindwings with 

 the discoidal spot, a transverse arcuate row of seven spots, two basal 

 spots, and one spot on the outer margin at the anal angle, also edged with 

 white. The outer marginal spot at the anal angle (in the same posi- 

 tion as the lower orange spot in argiadea) very marked. The combined 

 characters of this aberration, the blue-grey ground colour, strongly- 

 marked, white-margined spots, and the highly-developed anal marginal 

 spot of the hindwings, on the underside, are sufficiently striking. 

 Blachier notes (in litt.) the development of this anal spot as being 

 specially strongly marked in some Alpine examples, particularly in 

 some he obtained in the Val Piora in July, 1907. 



rj. var. ahoides, [Anderegg,] Bdv., " Gen. et Ind. Meth.," p. 12 (1840); Meyer- 

 Diir. " Schmett. der Schweiz," pp. 91-2 (1851); [Gerh., " Mon. Schmett.," p. 9, 

 pi. xiii., figs. 3a-c (1853);] Itiihl, "Pal. Gross-Scinnett.," i., p. 766 (1895); Tutt, 

 "Brit. Butts.," p. 161 (1896); Favre, "L6p. Val.," p. 23(1899); Wheeler, "Butts. 

 Switz.," p. 24(1903). — Besides considerable variation in size, this species also shows, 

 even in the same localities, sometimes more and sometimes less blue scaling. 



