122 BRITISH BUTTERFLIES. 



from vein 5 to tornus, the hindwing with the termen excised from vein 4 to the 

 tornus. Ventnor, June, 1887 (South) (Hampson, Ent. Mo. Mag., xxxvii., p. 120). 



£. — s . Forewings with sharply concave outline from the apex to the lower 

 half of the outer margin. Folkestone. Brit. Mus. coll. (placed among the 

 teratologicals) (Tutt). 



o. — s • Eight forewing with the apical area truncate, the termen excised 

 below apex ; the right hindwing somewhat reduced, the termen excised between 

 veins 7 and 2, and the inner margin truncate towards tornus. Folkestone (South). 

 Brit. Mus. coll. (Hampson, Ent. Mo. Blag., xxxvii., p. 119). 



7r. — c? . Very small. The ' left forewing hollowed out just below apex. 

 " Valais (Anderegg); Frey coll." Brit. Mus. coll. 



p. — s • Normal size. The lower half of the outer margin of left forewing 

 cut back a little concavely just above the anal angle. Between Saas-Grund and 

 Balen, 7. viii. '04. Tutt coll. 



s. — £ . Large size. Almost like the last, but with the concavity (which is in 

 exactly the same position in the left forewing) even less marked. Between Saas- 

 Grund and Mattmark, 6. viii. '04. Tutt coll. 



r. — ? . Brown form. The right forewing concave in the lower half of the 

 outer margin. Brit. Mus. coll. 



v. — S . Normal size. A sharply-angulated notch, normally scakd, in the 

 middle of the outer margin of the right forewing. Useigne, August, 1899. Tutt 

 coll. 



(p. — s . Left forewing with a notch towards the centre of the outer margin ; 

 the anal angle bulging and rounded. Captured by Chapman at Larche, 28. vii. 

 '05. Tutt coll. 



X- — c? • Normal size. Outer margin of left forewing with tiny notch in 

 centre ; the outer marginal line quite straight from apex to notch, and almost so 

 from notch to anal angle. Au Pra, August, 1901. Tutt coll. 



\p. — c? . The outer margin of the left forewing notched just above the anal 

 angle. The Brevent, August, 1902. Tutt coll. 



w. — c? . Normal size. Left forewing slightly concave on inner margin near 

 centre ; apparently, also, a slight injury on costa of left hindwing directly below 

 this. Susa, August, 1897. Tutt coll. 



aa. — ? . The left forewing with the apex ill-pigmented, and with a small piece 

 torn out of the apical margin (where the membrane appears to be very weak); a 

 largish round hole in the same wing just outside the discoidal lunule. British 

 Museum coll. (Tutt). Left forewing reduced to about three-fourths natural size ; 

 a large hole in end of cell ; the discocellulars carried out round it, and the 

 veins distorted. Kent (South) (Hampson, Ent. Mo. Mag., xxxvii., p. 120). 



/3/3. — The right pair of wings very narrowed and the right hindwing shortened, 

 the left pair of wings normal. Both forewings on the underside with the submedian 

 series of spots joined to the black chevrons and forming well-marked black streaks 

 ( — antico-striata). Dale coll. Hope Museum, Oxford (Tutt). 



77.— ? . Of lilac-blue colour, with the outer margin slightly hollowed con- 

 cavely on all four wings. Great Melton, Norfolk, 4. ix. 1902. Ray nor coll. 



Pathological examples. — There are comparatively few specimens 

 whose wings show a partial failure in the development of the pigment 

 recorded. Such peculiarity is occasionally combined with a modifica- 

 tion in wing-form, etc., as already indicated in 6 , aa, etc., of the preced- 

 ing section. The following are all that have come under our notice — 



a. — J . Hindwings very pale, bluish ; forewings of normal colour, Tintern. 

 August 8th, 1904 (Bird, Ent. Rec, xvii., p. 311). 



/3. — $ . The disc of all wings pale blue, the outer-marginal area pale 

 brownish ; the spots from the underside showing through on all wings as a double 

 row of pale dots parallel with the outer margin ; the orange lunules at anal angle 

 of hindwings, and the basal spots also, all showing through from the underside 

 (Mosley, Illus. Yars. Brit. Lcp., pt. vii., pi. iii., fig. 5). ( = ab. transparem) 



y. — c? . The left fore- and hindwing each with a pallid, whitish, triangular 

 patch extending from outer margin to discoidal cell. No doubt these areas were 

 situated directly under each other when in the pupal state. The right wings normal. 

 Deal, August, 1887. Tutt coll. 



0.— j . The left hindwing completely bleached. Folkestone, 1896 (Carpenter, 

 Proc. South Lond. Ent. Soc, 1896, p. 60; Ent. Itec, viii., p. 249). 



e . — j. Normal size. A fair-sized pallid patch towards the middle of the 

 outer margin of the right forewing. Pont du Gard, May 9th, 1905. Tutt coll. 



