2 BRITISH BUTTERFLIES. 



p. 45, pi. 223, fig. 1 (1839); Ramb., "Faun. And.," p. 273 <1839); Wood, " Ind. 

 Ent.," p. 8, pi. ii., fig. 65 (1839); Bdv., "Gen. et Ind. Meth.," p. 12 (1840); 

 Humph, and Westd., "Brit. Butts.," p. 105, pi. xxxiii., figs. 4-8(1841); Neiist. 

 and Korn., " Schmett. Schles.," p. 46, pi. 21, figs. 69a-/ - (1842); Hch.-Sch., 

 " Sys. Bearb.," i., p. 121 (1843); Dup., " Cat. Meth.," p. 33 (1845); Dbldy., " Syn. 

 List," 1st ed., p. 1 (1850); Stphs., "List," 1st ed., p. 19 (1850); Meyer-Diir, 

 "Schmett. Schweiz," p. 85 (1851); Hdnrch., " Lep. Eur. Cat. Meth.," p. 14 

 (1851); Hch.-Sch., "Sys. Bearb.," vi., supp., p. 27 ; Ind. Alph. to vol. L, p. 7 

 (1852); Westd. and Hew., " Gen. Diurn. Lep.," ii., p. 493 (1852); Led., " Verb, 

 zool.-bot. Gesell.," ii., p. 20 (1852); Gerb., " Mori.," p. 17, pi. 31, figs. 2a-c (1853); 

 Koch, "Geog. Verb.," p. 49 (1854); "Schmett. Deutsch.," p. 29 (1856); Stphs., 

 " List," 2nd ed., p. 18 (1856); Stn.. " Man.," i., p. 60 (1857); Ramb., " Cat. Lep. 

 And.," p. 42 (1858); Speyer, " Geog. Verb.," i., pp. 19, 85 (1858); Dbl'dy., " Syn. 

 List," 2nd ed.. p. 2 (1859); Hein., "Schmett. Deutsch.," i., p. 79 (1859): Now., 

 "Enum. Lep.," p. 9 (1860); Zebr., "Leo. Krak.," p. 157 (I860;; Staud., "Cat.," 

 1st ed., p. 5 (1861); Kirby," Man.," p. J07 (1862); Now., "Mot. Gal.." p. 50 

 (1865); Rossi., "Schmett. Nass.," p. 16 (1866); Berce, "Faun. Fr.." i., p. 142, 

 pi. vi., fig. 8(1867); Nolck., "Lep. Fn. Estl.," i., p. 57 (1868); Butl.. "Cat. 

 Diurn. Lep.," p. 170 (1869); Newm., "Brit. Butts.," p. 131, fig. 44 (1871); Kirby, 

 "Syn. Cat.," p. 368 (1871); Curo, "Bull. Soc. Ent. Ital.," vi., p. 112 (1874); 

 Mill., "Cat. Lep. Alp.-Mar.," p. 104 (1875); Scudd., " Hist. Sketch," p. 209 

 (1875); Sand, "Lep. Ber. Auv.," p. 6 (1879); Frey, "Lep. Schweiz," p. 19 (1880); 

 Weiler, " Schmett. Tauf. -Thai," p. 13 (1880); Rossi., "Lep. Wiesb.," p. 30 (1881); 

 Kirby, "Eur. Butts.," p. 48, pi. xiv., figs. 6a-c (1882); Lang, "Butts. Eur.," p. 121, 

 pi. xxvi., fig. 6 (18S4); Berce, "Lep. Fr.," p. 16, pi. iii., figs. 11-12 (1884); Kane, 

 "Eur. Butts.," p. 44, pi. iv., fig. 7(1885); Buckl., "Larvae," i., p. 191, pi. xiv., fig. 3 

 (1886); South, "Ent.," xx., pp. 1 et seq., pi. i., figs. 1-12 (1887); Auriv., " Nord. 

 Fjar.," p. 15, pi. vi., fig. 6 (1888 91); Dale, "Hist. Brit. Butts.," p. 63 (1890); 

 Brom., "Butts. Riv.,"p. 39 (1892); Barr., "Lep. Brit. Isles," i., p. 85, pi. xii., 

 figs, l-ll (1893); Meyr., "Handbk." etc., p. 348(1895); Tutt, "Brit. Butts.," 

 p. 166, pi. ii., figs. 12, 13 Q896); "Ent. Rec," vii., p. 220 (1896); Kirby, 

 "Handbook, etc.," ii., p. 91, pi. xlvii., figs. 5, 6 (1896); Favre, " Macr.- 

 Lep. Val.," p. 20 (1899) ; Wheeler, "Butts. Switz.," p. 31 (1903); Tutt, "Ent. 

 Rec," xviii., pp. 131-2 (1906); South, "Brit. Butts.," L, p. 167, pi. 109, figs. 

 1-12 (1906). Corydonis, Bergstr., " Norn.," iii., pi. lix., figs. 5-6 (1779). 



Original description. — Plebeji. Papilio Ruralis. Coridon, P.P. 



alis ecaudatis subargenteis fascia rnarginali nigricante subtus canis 

 subocellis plurimis. Posticis utrinque punctis ocellaribus marginali- 

 bus. Alas inferiores subtus maculis ferrugineis trigonis, contiguis. 

 submarginalibus. Magnitudo P. argi ac fortassis varietas (Poda). 



Imago. — 30mm. -46mm. J . — Of a delicate silvery-blue colour 

 with ocellated border to hindwings, and dark border of varying width to 

 forewings ; nervures dark marginally ; fringes white, chequered with 

 blackish, the dashes enlarged on outer extremity ; underside forewings 

 whitish, hindwings yellowish ; forewings with black discoidal lunule, 

 submedian row of 7 and 2 (to 4) basal ocellated spots, margin ocellated 

 and edged inwardly with dark grey (sometimes with faint orange 

 lunules); hindwings with white discoidal, submedian row of 8 and 2 

 (to 4) basal ocellated spots ; margin ocellated, edged inwardly with 

 orange and grey chevrons. $. — Fuscous; forewings with discoidal 

 and faint marginal ocellations ; hindwings with weak discoidal, well- 

 marked marginal ocellations edged internally with orange ; fringes 

 grey, strongly chequered with fuscous; underside brownish, of various 

 tints, hindwings usually deeper coloured; spots as in the 3 but larger, 

 and orange lunules much stronger, especially on forewings. 



Sexual dimorphism. — The sexes are very distinct, the $ silvery- 

 blue in colour, the $ brown, with a marginal row of orange-edged 

 spots more strongly marked on the hindwings, although the latter is 

 sometimes dusted with blue scales, and, in its extreme form, almost as 

 blue as the $ , but the scaling is very different, and the marginal spots 



