POLYOMMATUS ICARUS, 121 



coll. Sold at Stevens', February 23rd, 1909, for £1 6s., to Noakes for the Joicey 

 coll. ? (Newman, in Utt.) 



rj. — Oynandromorphous, the colour of the two sexes mixed in the wings. 

 Captured Folkestone, 1890, by Austin. Briggs' coll. Sold October 22nd, 1896, at 

 Stevens' to Christy, for £1 6s. (Briggs, in Utt.; Ent. Rec, viii., p. 272). 



d. — The right forewing chiefly d , with a streak of ? colour from the base to the 

 middle of the outer margin, where it expands and encloses two oiange marginal 

 spots ; the right hindwing almost divided in two by a line from the base to the 

 middle of the outer margin ; the costal half chiefly j , the inner marginal half ? . 

 The left wines are ordinary ? , with no blue scaling. Captured Dorking, August 

 12th, 1900 (Buckstone, in Utt. and Proc. South Lond. Ent. Soc, 1900, p. 103). 



Teratological examples. — There must be a considerable number of 

 teratological specimens of P. icarus in various collections, although com- 

 paratively few have been recorded. Stephens (quoted by Humphreys 

 and Westwood) states that difference in form is not unusual in this 

 species, some ? s particularly having the anterior wings much more 

 rounded at the tip, whilst, in others, they are somewhat acute. 

 Examples in our own series show also a marked difference in this 

 respect, many J s as well as $ s having the forewings markedly 

 truncate at the apex ; so much is this so that, unless very specially 

 developed, there seems no purpose in separately noting them. Tunaley 

 mentions {Proc. 8th. Lond. Ent. Soc, 1895, p. 63) that one P. icarus 

 taken that year at Freshwater showed a tendency to angularity in the 

 hindwings. The following are the only teratological examples of 

 which we have more detailed notes : — 



a. — An interesting example with five wings, three on the left side ; sent by 

 Korb from Kiileck, Asia Minor, 188-5. Staudinger coll. (Bang-Haas in Utt. with 

 rough sketch teste Dadd ; Riihl, Pil. Gross-S'-hmrtt., p. 760). 



)3. — c? • Right forewing markedly smaller than the left ; the right hindwing 

 still much smaller proportionally ; spotting of small wings normal. Cuxton, 

 20. vi. '93. Tutt coll. 



y. — j. Right hindwing crumpled, very much narrowed, and not above 

 a third the size of the left hindwing. Ollon, 11. v. '03. Tutt coll. 



5. — ?. Left forewing much narrowed, the anal angle rounded so that the 

 outer and inner margins form a continuous curve ; the left hindwing somewhat 

 smaller than right hindwing, the inner margin considerably excised ; spotting of 

 smaller wings normal. Sligo, 1891. Tutb coll. 



e. — j . The left forewing very much narrower than the right, especially from 

 the discoidal cell outwards ; a pallid area in the discoidal of both left fore- and 

 hindwing suggests injury, and consequent cause of narrowing of forewing, although 

 the left hindwing is of normal size. Malta, 14. vi. '02. T. B. Fletcher coll. 



i". — j . Normal size. The left forewing contracted near the outer margin ; 

 the inner margin much shorter than usual, thus narrowing the wing very markedly 

 towards the anal angle ; the underside of the hindwing of the obsolete or semi- 

 persica form. Gresy-sur-Aix, 23. viii. '97. Tutt coll. 



7). — c? • Average size. The left hindwing curled up, and only about one-third 

 normal size. Albarracin, 28. vii. '0L (Chapman). Tutt coll. 



8. — c? • Normal size. The left forewing slightly shorter and broader than 

 the right. Alios, 11. viii. '06. Tutt coll. 



t. — ? . Right forewing rounded at apex, otherwise normal. Abries, viii. '00. 

 Tutt coll. 



k. — c? • Truncate at apex of left forewing. Bourg St. Maurice, 1. viii. '05. 

 Tutt coll. 



A. — Exactly similar <? specimen. Clelles, 3. viii. '06. Tutt coll. 



fj-. — c? . Forewings of almost normal size, but slightly concave on costa ; the 

 hindwings much smaller than usual, although apparently not crippled. Labelled 

 " Proc. Sth. L. Ent. and N. H. Soc, 1887, pi. ii., fig. 3." Brit. Mus. coll. Refer- 

 ence to this figure shows it to be of the postico-obsoleta form, whilst a further 

 reference to p. 62 shows that it was captured at Ventnor (Tutt). 



v. — t? . The left fore- and hindwing both cut out concavely on the outer 

 margin. "Ventnor." Brit. Mus. coll. (Tutt). The left fore- and hindwing 

 reduced to about three fourths natural size, the forewing with the term en excised 



