136 SRITISH BUTTERFLIES. 



captured on the French Riviera. Further particulars on the underside 

 aberrations must be sought in our account of the various forms (postea). 

 The described forms which we have discovered in our search through 

 tbe literature relating to the species, are now given in fuller detail. 



Male Aberrations. 



a. ab. albina, [Verity, MS.?]; Rebel, " Berge's Schmett.," 9th ed., p. 70 

 (1909). Icarus ab., Verity, " Flor. Riv. dell'Inst. Dom.-Rosfd," i., p. 10 (reprint) 

 (1903). — S . Upperside whitish. 



We cannot find that Verity has named the aberration noted as 

 albina by Rebel. He describes (Flor. Riv. dell'Inst. Dom.-Rossi, i., 

 p. 10) a specimen, captured by Tolomei on Monte Matanna that bears 

 the same relation to typical P. tear us as do the vars. nivescens and 

 albicans to P. hylas and A. coridon respectively, which is possibly the 

 insect to which Rebel refets. He notes it as being of a pale lilac colour 

 instead of the usual bright blue, whilst a pale reddish-chestnut replaces 

 the black marginal border, the spots and margin of the underside also 

 being of this colour, whilst the base is tinged with reddish. One wonders 

 from this whether it differs from our ab. pallida (infra). 



/?. ab. livida, Gillm., "Int. Ent. Zeits. Gub.," iii., p. 64 (1909); " Ent. 

 Eec," xxi., p. 260 (1909). Icarus ab., Meyer-Dar, " Schmett. Schw.," p. 80 

 (1852); Adkin, " Proc. Sth. Lond. Ent. Soc," 1883-9, p. 165, pi. i., fig. 2 (1890). 

 — t? . The beautiful light blue of the <$ is, in this form, replaced by a lead- 

 coloured grey-blue. Found in August, 1907, by Herr J. Griebel, of Neustadt, in a 

 meadow near Speyer. Types in Herr Griebel's and my collection. Analogous to 

 L. bellargus ab. stiff usa, Tutt (Gillmer). 



This form was first noticed by Meyer-Diir who notes (Schmett. 

 Schw., i., p. 80) that he found, in Meissner's coll., a J of ash-grey 

 colour, like that of Latiorina orbitulus, which, however, when he wrote, 

 had long since come to grief. Adkin. then exhibited a $ of a pale 

 bluish -lavender colour, at the meeting of the South London Entomo- 

 logical Society, held November 14th, 1889, the specimen having been 

 captured by Austen at Folkestone. In the British Museum coll. are 

 four $ s of pale bluish-grey colour — (1) of large size, labelled "Carrick 

 Hill, Roscrea, Ireland, 20. vi. '95, C. J. Gahan." (2) Another g , 

 labelled " Corville, Roscrea, Ireland, 21. vi. '95, C. J. Gahan." (8) 

 ■" Crete, near Canea. D. M. A. Bate, 1904." (4) A small $ from 

 "Granada (23. iv. 1901, Yerbury)," worn, and looking as if damped: 

 one is inclined to wonder whether all these specimens have not been 

 naturally or artificially affected by (lam]) (or the condition of the 

 collecting-box) after emergence. At the meeting of the Entomologie-al 

 Society of London, held October 3rd, 190G, another example, described 

 as a slate-coloured aberration of thecf , taken near Chatham on August 

 24th, 190G, was exhibited by A. H. Hamm. We have not, of course, 

 seen Gillmer's type, but doubt whether this aberration is analogous 

 with our Agriades thctis ab. suffusa ; it appears rather to be analogous 

 with A. thctis ab. czehelid, Aign.-Abafi. 



y. ab. pallida, Tutt, "Brit. Butts.," p. L75 (1896); Lamb., " Pap. Belg.," 

 p. 232 (1902); Gillm., "Int. Ent. Zeits. Gub.," ii.. p. 11 (J908); Rebel, "Berge's 

 Schmett.," 9tb ed., p. 70(1909). Icarus ab., Barr., "Brit. Lep., n i., p. 7s 

 (1892).— f. Pale lilac blue in tint (Tutt). 



This is, in some respects, the palest of the lints through which the 

 blue colour of the $ s of tin's species usually ranges, without becoming 

 grey. It has a very distinct reddish lingo in the blue, and appears 



