AGRIADES CORIDON. 7 



all absent, except a costajuncta mark, small white discoidal and one tiny basal 

 spot ; the marginal series replaced by obsolete whitish wedges. The left hind- 

 wing normally spotted beneatb. Alios, August 14th, 1906. Tutt coll. 



/x/x. — ? . Eight hindwing about half size of left hindwing, and considerably 

 crumpled. Underside of obsoleta form on all wings. Dover, August, 1904. 

 Pickett coll. 



vv. — ? . The left hindwing crumpled into a small scrap about 12mm. x 4mm. 

 "Underside of the cinnus, Gerh. (po*tico-obsoleta), form. Dover, August, 1904. 

 Pickett coll. 



fif. — ? . Almost exactly like the last, but the left hindwing still smaller, the 

 other wings normal. Dover, August, 1904. Pickett coll. 



oo. — A dwarf, with broad and rounded wings. Devizes, August, 1896 (Sladen, 

 Ent., 1897, p. 81). 



7T7T. — $ . An abnormal hindwing, longer and far broader than usual, with an 

 indentation in the middle of the hindmargin, tending to show that it is a double 

 wing, each half of which has nearly all the usual spots of a wing, reduced in size, 

 on the underside. Briggs' coll. (Barrett, Lep. Brit. Isles, i., p. 86). 



pp. — ? . With a small extra fifth hindwing arising above and at the base of 

 the left hindwing. Mason coll. (Mosley, Nat. Journ. j v. supp., 1896, pi. iv., fig. 10). 



ss. — c? With the right hindwing very much narrower, the apex more pointed, 

 and the inner margin shorter, than the left hindwing. Draguignan, May 3rd, 

 1905. Tutt coll. 



We noticed eleven other 2 s, all with obsolete markings on the 

 underside (ab. obsoleta) in Pickett's coll., which show traces in one 

 wing or more, of malformation, sometimes very slightly, and only 

 modifying the markings asymmetrically, but, in others, extending to the 

 excision of considerable areas on the margins of a wing or wings, 

 suggesting strongly that the obsolete markings have, in some manner, 

 a causation in physical weakness. Tunaley observes (Proc. Sth. Lond. 

 Ent. Soc, 1895, p. 63) the tendency of the hindwings sometimes to be 

 angular rather than rounded ; this is a not uncommon tendency 

 in other allied species. 



Pathological examples. — The following are the pathological 

 examples that have come under our notice : — 



a. — s • The fore- and hindwings of a very delicate cream colour = ab. lacti- 

 color, n. ab. (Pearce, Ent. Rec, xx., p. 20). 



j3-y. — ? s. Two small pale fawn-coloured females in the Brit. Mus. coll. 

 labelled " Mutzell coll." 



5. — ? . A beautiful fawn colour or pale cinereous replacing the usual very 

 dark brown ground colour. Folkestone, August, 1880 (Hodge). 



e. — ■ ? . Normal size. Of an uniform pale fawn-brown colour, roughly similar 

 to that of Coenonympha pamphilus . No fringes. Although the example is no doubt 

 considerably worn, it must be conceded to have been originally a very pale ill- 

 pigmented specimen. Dover, August, 1900. Pickett coll. 



f. — <s . The cilia wholly white, and the anal angle also white. Briggs' coll. 

 (Barrett, Lep. Brit. Isles, i., p. 85), 



rj. — cT . Bight forewing with large pale patch occupying triangular portion of 

 wing, from the outer margin to the middle of the lower edge of discoidal cell, and 

 back to the anal angle. Ste. Maxime, April, 1906 (Chapman). 



8. — c? • Of normal size, right hindwing with the apical portion of costa with 

 weak, pallid (grey) scaling. Dover, August 1904. Pickett coll. 



t. — t? . Small dark patch near anal angle of right wing. Dover, August, 

 1903. Pickett coll. 



k. — 2 . Left forewing with pallid patch at apex, the inner margin of the 

 same wing curled. Dover, August, 1906. Pickett coll. 



X. — s . Normal size. Outer margin of left fore- and hindwing of a pallid 

 blue colour (tending to lilac, the margin brown, and the fringes spotless. The 

 right pair of wings normal. Dover, August, 1907. Pickett coll. 



/x. — c? • Normal size. The apex of the right forewing rounded, the scaling of 

 the outer half of wing weak, and carrying a broad dark margin twice the width of 

 that on the left side, the fringes white; left side normal. Dover, August, 1905. 

 Pickett coll. 



