AND THEIR TRANSFORMATIONS. [I3 



to be fine specimens of P. Alexis, all having two spots at the base of the fore wings on the under side. 

 Mr. Stephens states that those supposed .specimens of Dorylas were taken in company with P. Adonis, in J\me 

 1812, but have not been met with afterwards. 



DESCRIPTION OF PLATE XXXVI. 



Insects. — P'ig. 1. Poljommatus Icaiiiis. 2. Tlie female. 3. Showing the uncier bide. 4. The CatcrpiHai of P. kariiis of Espcr. 

 ,, Fig. ^. Polyommatus Agestis (the brown Argns Butteiny). Ck The female. 7. Showing the under side. 



Plants. — Fig 8. Fragaria vesca (the wild strawberry.) 



The insect figured in this plate No. 1 — 3, is the P. Irarius of British collections ; but is certainly not identical with the P. Icarius of Espcr. 

 which is the P. Amandus of Hiibner. The present figure is fi-oin the collection of Mr. Stephens, and appears but a v.aricty of Alexis. The 

 caterpillar is that figured by Esper, which he has represented feeding upon the wild strawberry. H. N. H. 



(Eut. Trans, p. 334). 



Po/i/ommatus Agathon, Godart, Encycl. Mcth. t. 9, p. 69.i. 

 Agrindes Icarius, Hiibner (Vcrz. beU. Schmett.) 



SPECIES 12.— POLYOMMATUS ICARIUS. THE BLACK-BORDERED BLUE BUTTERFLY. 



Plate xxxvi. tig. 1 — 4. 



Synonymies. — Papilio Icarius^ Espcr. Selimettcrl. part l,p. 33, 1 Zephyrius Icarius^ Dalm. Trans. Arad. Stockbolni, 1H16. 

 t!ib. 99, 54, fig. 4. Haworth. I sp. 19. 



Polyommatus Icarius, Jermyn, Stephens, 111. Hanst. l,p. .'11. Pa/ii^io ^manrf«.«, Hiibner, Pap. tab. .'jO, fig. 283 — 28.3. Ilawortb 



Wood, Ind. Ent. t. 3, fig. G8, $, 5 . 



Argus Icarhts, Boisdiival, leones Hist. Lep. ]i. 50, pi. 12, fig. 

 1—3. 



Lyctsna Icarius, Orlisenlieinier. 



This is another doubtful Britisli species, introduced by Mr. Ilaworth, who stated that he possessed several 

 English specimens. It is closely allied to P. Alexis. The wings measure rather more than an inch and a 

 quarter in expanse, and are of a less brilliant blue tlian in Dorylas, with a slender black border, which is extended 

 slightly upwards along the veins. The fringe is white, nearly as in Alexis. The under surface of the four wings 

 is of an ashy-grey, with the base powdered with bluish green, and with a transverse row of ocellated spots ; 

 preceded in the hind wings by four or five fulvous lunules, which become more distinct as they approach the anal 

 anffle. These lunules are anculated above with black, and marked below with black spots. At the extremity 

 of the fore wings, in the place of the fulvous, submarginal band, are the rudiments of several greyish lunules. 

 The triangular spot at the tip of the discoidal cell is arched, and not preceded by any other spot, whilst that of 

 the hind wings is preceded by a row of three black sj.ots. The breast and feet are bluish, the tliorax and upper 

 side of the abdomen blue, and the antennai ringed with white. 



The upper side of the female is of a shiny brown colour, with a marginal row of fulvous lunules, each resting 

 upon a black spot : this row of lunules occasionally extends more or loss along the edge of the fore wings, which, 

 moreover, are marked with a black spot at the extremity of tlie discoidal cell. The under side is of a yellowisii. 

 or reddish-grey, scarcely saturated with blue at the base, with the markings more distinct than in the male, and 

 the marginal, fulvous band distinct upon the fore wings, but not so strong in the fore as in the hind wings. 



At the time when Mr. Stephens published his Illustrations, he did not possess this species; and in his more 

 recent manuscripts (with the sight of which he has obligingly favoured me) I find this species indicated with 

 marks of doubt, as being in his own collection. The specimens in his collection, from which our figures 1-3 

 of plate .30 are derived, appear to me to he but varieties of P. Alexis. The fore wings of the male on the 

 under side (fig. 3) have two ocelli at the base, preceding the central spot, and the female is powdered with blue, 



