138 



RUJTISH BUTTERFLIES. 



p. 29 (1886); Barr., "Brit. Lep.," i., p. 9 (1892).— s. Alis pallide cyaneis 

 immaculatis, aut fuscis, subtus cinereis, punctis numerosis ocellaribus, posticis 

 fascia marginali flava obliterate. This is probably a distinct species, and may be 

 known by the peculiarly pale silvery- or greeni-h-blue colour of its upper surface. 

 . Mr. Haworth's specimen was found, I believe, in Kent; and mine, 

 characterised as var. p, I took in July, 1826, in a grassy lane near Ripley, Surrey 

 (Stephens). 



Of the colour of eros, or approaching that of coridon, on the upper- 

 side. This is the erosoides form of P. icarus, for which, if it be accepted 

 that the specific name of an insect cannot be used even for an 

 aberration of another species in the same genus,' eros, Stephens, cannot 

 stand, and erosoides would have to be substituted, as, according to our 

 views, icarus and eros are both in the genus Polyoutmatus. To ourselves, 

 Polyormnatus icarus ab. eros, Stphs., and Polyotnmatus eros, Ochs., are 

 such different insects, that no chance of mistake could occur with experts, 

 and it is only for these one writes. Barrett notes a $ in the Webb 

 coll. taken at Dover of precisely the pale silvery-blue of Polyoimnatus 

 eros, whilst Joy exhibited, at the meeting of the Sth. London Ent. 

 Soc, February 4th, 1886, a dwarf example somewhat similar in colour 

 to that of Ag Hades coridon. 



d. ab. canrtybus, Bergs., "Norn.," ii., p. 78, pi. xlviii., figs. 1-2 (1779); 

 Goze, "Ent. Beit.," iii., pt. 2, p. 80 (1780). Latimargo, Courv., " Mitt. Schw. 

 Ent. Gesell.," xi., p. 23 (1903); Gillm., "Int. Ent. Zeits. Gub.," xviii., p. 2 

 (1904); Kebel, " Berge's Schmett.," 9th ed., p. 70 (1909). — P.P.R. alis 

 rotundatis integerrimis caeruleis immaculatis fimbria alba ; subtus in utrisque 

 fulvis maculis, ocellisque plurimis. With rounded blue unspotted wings and 

 white fringes ; beneatb, on both wings, orange lunules and many ocellated spots ; 

 certainly no aberration of argus, although perhaps the agestis of the Vienna 

 entomologists, if the margianl spots also occur in the latter species on the 

 hindwings. The transverse orange band is not continuous but interrupted, 

 in narrow spots, the hindmost of which are longer and broader, the foremost 

 shorter and narrower. Whether it is sexually related to the following (candiope) 

 I cannot assert (Bergstrasser). 



Borkhausen recognised (Sys. Besch., i., p. 1G1) this as a form 

 of P. icarus. Bergstrasser's figures show it to be a $ of the 

 latter species, although the upperside is exceptional in having a wide 

 margin to all four wings ; the fringes are white; the underside is 

 inclined to the form with an increased number of spots, there being 

 an extra spot between the submedian row and the discoidal spot of 

 the forewiug. It is, therefore, also the oldest name for ab. cxcesm, 

 Gillm., but we retain the name for the wide- margined form, as it 

 shows this character more markedly ; it will, therefore, replace the 

 more recently-named latimargo, Courv. 



i. ab. nigromaculata, Ckll., " Ent.," xxii., p. 99 (1889); " Ent. Rec," i., p. 

 306 (1891). Icarus ab., Staud., '« Hor. Soc. Ent. Ross.," xiv., p. 242 (1879); 

 South, "Ent.," xx., pp. 74, 210 pi. ii., fig. 3 (1887); Weir, "Ent.," xxi.. 

 p. 216 (1888); South, "Proc. Sth. Lond. Ent. Soc," 1887, p. 62 (1888); op. 

 cil., p. 65 (1889); Weir, op. cit., p. 54 (1889); Tutt, op. cit., p. 54 (1889); Walker, 

 " Trans. Ent. Soc. Lond.," p. 373 (1890) ; Barr., "Proc. Sth. Lond. Ent. Soc," 

 1890-1, p. 140 (1891); Sheldon, " Ent. Rec," v., p. 17 (1894) ; Sterl., " Bull. Soc. 

 Ent. Ital.," xxxii., p. 336 (1900); McArth., " Ent.," xxxiv., p. 305 (1901); Reuss, 

 "Ent. Rec," xxi., pp. 211, 236 (1909). Alexia ab., Russ, "Ent. Rec," i., p. 

 282 (1891); Reid, op. eft., p. 282 (1891) ; Webb, op. cit., p. 282 (1891); Barr., op. 

 cit.. ii.. p. 299 (1891); Tutt, op. cit., iii., p. 270 (1892). Cclinn. Tutt, "Brit. 

 Butts.," p. 175 (1896) ; Grover, " Em. Rec," ix., p. 312 (1N071 ; Fleck, » Macr.- 

 Lep. Raman.," p. 21 (1901); Wheeler, " Butts. Switz.," p. 36 (1903); Verity, 

 " Bull. Ent. Soc. Ital.." xxxvi., p. 138 (pubd. 1905); Sniallm., "Ent. Rec," six., 

 p. 41 (1907); Lamb., " Cat. Lep. Belg.," p. 425 (1907); Gillm., " Int. Ent. Zeits. 

 Gub.," ii., p. 11 (1908); Grund, op. cit., p. 79 (1908); Wheeler, "Ent. Rec," 

 xxi., p. 281 (1909); Seitz. " Gross-Schmett.," i., p. 312, pi. 80g (1909); Rebel, 



