SPECIES AND VARIETIES. 357 



MeUtcea Euphrosyne. Of this insect the spring brood 

 varies very much in markings, I have one specimen nearly 

 white ; the September brood varies in colour, it is much 

 yellower. M. Selene varies in the same manner. The Rev. 

 Mr. Bird has a specimen nearly black. M. Cirixia varies but 

 little in colour; in markings only and size; sometimes the 

 ocelli want the pupil. A variety of M. Artemis has been 

 taken at Enbourne and in Wales : this insect was not seen at 

 Glanville's Wootten from 1815 to 1822, and then it reappeared 

 in great abundance. M. Athalta is very variable : Eos, cuni- 

 gera, tessellata, 8cc. are varieties of this species. 



Thecla quercus sometimes wants the black spot in the red 

 anal spot. T. W. album varies more or less in the red anal 

 spot. T. ruh'i has sometimes a row of white spots on the green 

 side, and is sometimes entirely without them. 



Of Lyccena Phlaas there are two or three broods ; some of 

 the varieties have blue spots on the lower wings ; others vary 

 in having the border of the upper wings narrow or broad, and 

 some have the under wings totally black. In the fine autumn 

 of 1826, I took one with the red border in the second wings 

 quite interrupted, h. dlspar varies only in the size and form, 

 and the intensity of colour. 



Polyommatus Arion varies in having the black spots large 

 or small ; the latter variety is called Alcon. The female of 

 P. Corydon is sometimes nearly as blue as the male, and some- 

 times the ocelli on the under side are very nearly obliterated ; 

 sometimes they are large and elongated. P. Adonis varies in 

 a similar manner : it has two broods. P. Dorylas, Icarius, 

 Alexis, and Eros, are but a single species, varying amazingly 

 in colour, markings, &c. I took a very fine female, allied to 

 Burrelii of Haworth, being white underneath, and wanting 

 the elongate spot. The female of P. Argus varies in being 

 more or less blue, and sometimes very much larger, and has 

 elongate spots on the underside. P. Salmacis or Titus ? is 

 intermediate between Agestis and Arlaxerxes ; in Scotland 

 none of the Agestis are to be found, they are all Artaxerxes ; 

 in the south none of the Artaxerxes are to be found, they are 

 all Agestis. At Newcastle they appear to be mules or hy- 

 brids, between the two species, partaking in some degree of 

 the characters of both ; some of the varieties have a black spot 

 inside the white one, on the upper surface of the first win'^s. 



