52 BRITISH BUTTERFLIES. 



marked in the typical $ are scarcely visible in albicans. The race 

 appears constant in the Sierra Nevada." Milliere evidently did not 

 know of Gerhard's figure, or he would not have added that " the form 

 had not been previously figured. Mrs. Nicholl observed {Ent. Rec, 

 xiv., p. 12) this beautiful form " flying in the scorchingly hot, dry 

 watercourses in the glens below Lanjaron on the southern slope of the 

 Sierra Nevada, between May ' 22nd and 26th, 1901, where the 

 specimens were hardly distinguishable from the white rocks they 

 haunted." Oberthiir observes (Etudes, xx., p. 21) that, in Spain, A. 

 coridon becomes white, and, in certain cases, has no suspicion of blue 

 in its tint, contrary to the rule in Transcaucasia and Taurus ; there are, 

 however, he adds intermediates between coridon and albicans, which 

 appear to be particularly well-marked in the Sierra de Alfakar, near 

 Granada. In July, 1879, a dozen $ A. coridon were taken near Huejar ; 

 they had a bluish tinge, and were easily distinguished from 2-4 other £ s 

 taken at Granada and Alfakar. Oberthiir further notes that nine g s 

 taken at Escurial, July 29th-30th, 1879, are, except one example in 

 which the forewings are almost as little bordered with black, as in 

 Poh/onnnatus dorylas var. nivescens, broadly washed with blackish-brown 

 on the outer margin of the forewings ; the ground colour of the 

 wings of a silvery greyish-white, sprinkled with blue scales near the 

 base, and not far from the race found at Huejar." This is certainly 

 true of the Huejar specimens, for, in the Natural History Museum, is 

 an example labelled " Sierra Nevada — Cote de Huejar; Rene Oberthiir, 

 July, 1879," quite different from the remaining series of albicans, with 

 distinct greenish-white metallic scales not covered with the long white 

 hairs of albicans, and with the margin of the forewings more strongly 

 banded, but with the spots indicated. This is in reality nearer Gerhard's 

 arragonensis than albicans in appearance, and probably bears exactly the 

 same relation to albicans that arraijonensis does to caerulescens. This 

 form we would call transalbicans. 



ft. var. arragonensis, Gerh., " Mori. Schmett.," p. 17, pi. xxxii.. figs, la-d 

 (1851); Tutt, "Ent. Rec," xxi., p. 300 (1909); " Proc. Ent. Soc. Loud.." p. Ixxx 

 (1909). Hisjmna, (?) Staud., " Cat.," 2nd ed., p. 12 (1871); Cuni-y-Mart.. " Lep. 

 Bare," p. 18 (1874); Lang, "Eur. Butts.," p. 122 (1884); ? Kane, " Eur. Bui 

 p. 45 (1885); Staud., "Cat.," 3rd ed., p. 86 (1901); Chapmn., "Ent. Bee," 

 xiv., pp. 89, 119, 121 (1902); "Ent. Bee," xv.. p. 37 (1903); xvi., pp. 124. 140, 

 143(1904); Bart., " Ent, Zeits. Guben," xviii., p. 114 (1904); Sheldon. "Ent. 

 Bee," xviii., p. 118 (1906); Seitz, " Gross-Schmett.," i., p. 315 in part (1909). 

 Albicans, Figueroa, " Ann. Soc. Esp. Hist. Nat.," p. 152(1901); Lamb.. "Pap. 

 Belg.," p. 239 in 2)art (1902): Leonb., " Ins. Borse," p. 124 in part (1905).— Tbis 

 variety, of which Lederer brought back several examples from Spain, is strikingly 

 distinguished by the underside, which is uncommonly bright and very abundantly 

 marked with ocellated spots. The colour is also different (Gerhard). Gerhard's 

 fig. la is a " <? , 35'4mm. in expanse, a pale glossy greenish-cream colour (whitish- 

 green in some copies of the work), with dark outer marginal band divided by a 

 pale median line on forewings; the hindwlngs with a marginal row of well- 

 developed, pale-margined, interneural spots. The underside (fig. 1/)) is dark grey, 

 tinged with brown, the red chevrons on the hindwings well-marked, but there is 

 no red on forewings, only whitish marginal spots ; the ocellated spots large, 8 in 

 submedian row of forewings, and 4 between the discoidal and base. The ? 

 fuscous-brown, with orange spots on all the wings above; the underside brown, 

 the ocellated snots large, especially 5, (i, and 7 of tin 1 submedian row on forewings : 

 the orange lunules strongly marked, almost red on hindwings, but shaded off with 

 black on forewings (Tutt). 



[t seema almost impossible to believe that Herrieh-Schaffer's pi. 

 ciii., figs. 494-f>, and Gerhard's pi. xxxii., figs, la-b represent the same 



