330 BRITISH BUTTERFLIES. 



0. — ■ 3 . The right forewing rounded at the apex, from which, on the costa, a 

 narrow portion of the wing appears to be excised, the edge of this portion, however, 

 with a well -developed white marginal fringe. The other wings normal. Captured 

 at Cuxton, May 20th, 1893. Tutt coll. 



i. — 3 . The left fore- and the left hind wing both curved inwardly in the 

 middle of the outer margin, giving a distinct concave margin to this part of the 

 wings Right pair of wings normal. Captured at Cuxton, May, 1881. Tutt coll. 



k. — 3 • The right hindwing with the outer margin cut off sharp and straight, 

 so as to distinctly narrow the wing. [Like f, but the righ.t hindwing instead of the 

 left hindwing modified.] Captured at Cuxton, September 10th, 1891. Tutt coll. 



A.- — 3 . The right forewing curved inwards on the middle of the outer margin, 

 giving a concave edge ; the left hindwing rather smaller than the right hindwing. 

 [The specimen of the form minor. .] Captured at Cuxton, August 22nd, 1893. 

 Tutt coll. 



M- — 3 . The right forewing contracted medially, making the wing decidedly 

 narrower, and the costa rather rounder. Captured at Cuxton, June 6th, 1884. 

 Tutt coll. 



v. — The right forewing slightly concave below apex, the apex itself in conse- 

 quence distinctly acute ; the right hindwing with the middle of the outer margin 

 slightly concave. The markings seem in no wise affected (South, Proc. Sth. Lond. 

 Ent. Soc, 1892, pp. 58-59). 



£. — An autumnal example with the forewings shaped like those of Gone-pteryx 

 rhamni (Webb, " Entom.," xx., p. 132). 



It may be well to notice here a remark by Tunaley (Ent. Bee, 

 vii., p. 192) on the tendency to angularity in the hindwings of this 

 species at Freshwater, in August and September, 1895. 



Pathological examples. — We have only descriptions of the follow- 

 ing specimens, although many probably exist — 



a. — ? with the left hindwing pallid, shiny, and wanting in pigment, especially 

 on the outer half of the wing, the left forew T ing similar on the outer margin more 

 broadly so in the area of the anal angle. Cuxton, May 20th, 1893. Tutt coll. 

 (Trans. Ent. Soc Lond., 1894, pp. xv.-xvi). 



ft. — ? in which large patches of the wing are entirely destitute of scales, and 

 showing the underside markings through. Captured at Folkestone by Weston. 

 Briggs' coll. (Proc. Sth. Lond. Ent. Soc, 1894, p. 77). 



y. — ? with forewings uniformly pallid, greyish ; the hindwings normal. 

 Cuxton, September 3rd, 1887. Tutt coll. 



5. — 3 . Grey, with a brownish shade and a very faint tinge of blue. 

 Ocelli on hind margins of hindwings faintly indicated. Underside normal. Kent, 

 June, 1886 (South, Ent., xx., p. 80). 



e. — 3 . Central area of all wings mauve, with bellarg u s-blue margins ; 

 nervures black on hind margins of forewings ; black spots on margin of hindwings ; 

 fringes faintly chequered on forewings, but plain white on hind pair. Underside 

 normal. Kent, June, 1886 (South, Ent., xx., p. 80). 



£*. — 3 . One-third of the wings nearest the base of the natural colour, then 

 shading off into sooty-black. Folkestone, 1887 (Webb, Ent. xxi., p. 133). 



n — 3 . With the hind margins of all wings shading off into dusky white. 

 Folkestone, 1887 (Webb, Ent., xxi., p. 133). 



6.— 3 with the marginal orange lunulas of the lower side indistinctly visible 

 from above also. Folkestone, 1887 (Webb, Ent., xxi., p. 133). [This suggests a 

 failure in the structure of the membrane and scaling of the hindwings, as the 

 orange lunules show through.] 



l — ix. — Four 3 s of a very abnormal colouring, pure French grey in hue (the 

 wings almost appear to have been powdered over with slate pencil dust). It is 

 probable that want of power has something to do with this, as three of the 

 specimens show wings torn in escaping from the chrysalis (Webb, Ent., xxi., p. 

 133). 



v.— ? . Pale brown, with a faint tinge of blue and indistinct ocelli on the 

 hind margins of all the wings. Underside similar to that of bellarg us, but the 

 black spots very small. Kent, September, 1886 (South, Ent., xx., p. 80). 



£. — ?. Talc brown, shot with pale blue at the bases of all the wings; a 

 band-like series of orange crescents on hind margins ; fringes white, with only 



