750 Retrospective Criticism. 



determinate, and running into each other. Beneath, on the 

 anterior wings the black colour is predominant, except on the 

 outer margin, which is tawny ; the lunar fulvous mark is also 

 apparent. The posterior wings are of a brown green, with 

 numerous silver spots, of which four in " the second series 

 from the margin are tarnished with black." The metallic 

 spots are much smaller than in the ordinary specimens. I 

 believe this is the identical specimen alluded to by Mr. Ste- 

 phens in his Illustrations (see Addenda to Haustellata, vol. i. 

 p. 147.); and of his description I have in part availed myself. 

 I should have been in doubt, and indeed, still am so, whether 

 this insect ought, with more propriety, to be called a variety 

 of A. Adipp^ or of Aglaia. Owing to the prevailing green 

 lint of the posterior wings beneath, I should have referred it 

 to the latter ; as Mr. Stephens, however, has pronounced it to 

 be of the former species, I yield to his better judgment. H'^ 

 Fig. 123. I conceive to be that variety of Argynnis AgRiaj 



which has been published by various authors under the name 

 of Charlotta : it differs from Aglai« principally in having 

 " the six basal silver spots on the under side of the posterior 

 wings united into three larger " elongated "ones." (Stephens's 

 Illustrations.) In the present specimen, which was taken, Mr. 

 Weaver informs me, in the neighbourhood of York, five or six 

 years since, the black spots and markings on the upper side 

 of the posterior wings are less distinctly defined than the cor- 

 responding ones in the anterior pair ; being somewhat clouded 

 and confluent. I have not the means of comparing this with 

 other specimens of Charlotte : should the insects so named 

 be all of them varieties of Aglai«, probably no two examples 

 may exactly correspond with each other. 



Fig. 124. is a very interesting insect, allied to Melitae^fl 

 Selena; of which, perhaps, it may be only a variety. Mr. 

 Weaver possesses two specimens, both of which were taken 

 in Sutton Park : one about ten years ago ; the other, not 



