NOTES ON THK GKNUS LYC/TSNA. 3 



double one near the au;il angle be counted as two, of these 

 ocelli.* (l-'ig. 9, Plate I , represents this form.) The black 

 border on hind margin of inferior wings is generally ill-defined, 

 often narrow and external to the ocelli, but sometimes it is broad 

 and obscures the eye-spots. The ocelli in this wing are seven in 

 number (two at anal angle close together), but only the outer 

 halves uf the white rings are clearly expressed, the inner halves 

 being more or less invaded by the blue ground colour. The 

 fringes are not by any means constant; for although the majority 

 of individuals of this sex of corydon have the fringes plainly 

 chequered with black and white, in many examples tliis character 

 is so faintly exhibited that the fringes appear simply white. 

 Careful examination, however, of the cilia of such specimens reveals 

 the fact that in most of them vestiges of the black still remain. 



Female. — The normal coloration of female corydon is, 

 according to Dr. Lang,f " brown, with a black discoidal spot on 

 the fore wings ; all the wings with the usual hind-marginal orange 

 band, which is pale in colour." So far as I have observed this 

 sex of corydon in various parts of England, I have not yet seen a 

 specimen in which the orange marking of the hind-margins of the 

 wings assumed band-like proportions. In the majority of speci- 

 mens I have seen the orange marking is confined almost entirely 

 to the inferior wings, where it appears in the shape of crescents, 

 which are deep and not pale in colour. When these crescents 

 are present on the fore wings they are pale, and often very 

 obscure. One or two examples in my Eastbourne series have 

 only the least possible trace of orange-colour, even on the hind 

 wings. In all cases each of these orange crescents forms the 

 internal half of a ring surrounding a black spot; the external 

 half of the wing is generally white, but sometimes suffused with a 

 brownish tint. When the orange is absent from the fore wings, 

 so also are the black spots ; but in the examples, previously 

 adverted to, from the hind wings of which the orange has nearly 

 gone, the black spots still remain. Then as to the discoidal spot 

 on fore wings. In some examples this is difficult to discover, 



* I have not many examples of corydon from the Newmarket district, but 

 in those I have I find ocelli and distinct traces of crescents on the fore wings 

 of the male, which in two examples are as clearly defined as in female specimens 

 from the same locality. In neither sex are these crescents orange in colour, but 

 whitish in the male and a pale fawn in female. 



t ' Butterflies of Europe.' 



