VARIETIES OF NOCTU^ IN THE BRITISH ISLANDS. ^207 



p. 268, fig. 3. Guenee writes: — "The two ordinary stigmata 

 and a small spot which precedes them of a deep black " 

 (' Noctuelles,' vol. v., p. 99). 



y. var. wismariensis, Schmidt. — Anterior wings with a broad 

 black stripe running from the base to the hind margin. This is 

 Guenee's var. A, which he describes as having " a broad black 

 band traversing the middle of the wing from the base to the 

 apex." (Guenees ' Noctuelles,' v. p. 99). 



3~. var. nigricostata, Stdgv. — This is described by Dr. Staudinger 

 as having the anterior wings with the costa broadly black, 



e. var. nigrosfriata, Stdgr. — Anterior wings with many black 

 streaks running parallel to the veins. This is figured in Newman's 

 ' British Moths,' p. 68, fig. 4. 



All these varieties are obtainable in their British localities, 

 the Fen district and Kent. 



Chortodes extrema, Hb. {bondii Knaggs). 



That Hiibner's fig. 412 {extrema) is the type of this species 

 there appears but little doubt. It is not surprising that it was 

 referred by the continental entomologists, Treitschke, Ochsen- 

 heimer, Duponchel, &c., either to Jiuxa (a variety of fulva) as an 

 aberration, or treated as a distinct but unknown species, as bondii 

 was unknown to continental lepidopterists until a comparatively 

 recent date, when the British specimens were sent over. Dr. 

 Staudinger refers to Hiibner's fig. 412 as an aberration of 

 Guenee's concolor, which itself has no claim as a species. Hiib- 

 ner's fig. 412 may be described as: — "Wings about the same 

 shape as bondii. All the wings white, shaded to ochreous on the 

 outer margins ; nervures slightly darker on outer edge. Upper 

 part of fringe to anterior wings black, remaining fringes grey." 

 The black in the fringe is unknown in any species of the 

 group Leucanidse. 



Var. bondii Knaggs. — First described in the * Transactions of 

 the Entomological Society of London,' 1801, p. 13;3. Also 

 figured and described by Newman in his ' British Moths,' p. 276. 

 Our British bondii have no trace of the black fringe mentioned 

 above, but this is the only point of ditference between bondii and 

 Hiibner's extrema. A sexual variation occurs, the males generally 

 having a distinct transverse row of dots, the females with this 



