46 EuKOFEAN Butterflies axd Moths. 



eyes on the hind-wings ; none on the fore-wings. The central row of black eyes on the fore-wings 

 is much larger and more distinct than that on the hind-wings. Expands about i inch. Inhabits 

 South France, Spain, and Algeria in April and May. Larva bluish-grey, sometimes apple-green, 

 with glaucous green longitudinal lines. Lives on Dorycnium at the end of May and in June. 



7. P. Cyllavus (Hiibn.). — Male sky-blue ; female brown, blue at base. Under side as in 

 Alelanops, but the hind-wings are powdered with brilliant coppery green from the base to beyond 

 the discoidal lunule, which is lost in it. Common in flowery slopes and glades on the edges of 

 woods from May to August, in the greater part of Europe and Northern Asia. In the north- 

 eastern plains of Germany it is very local, and it is wholly absent from the north-western plain of 

 Europe (including England and the Low Countries, &c.). The larva is yellowish-green, with a 

 reddish line on the back, dark green oblique stripes, and a black head. Feeds on various 

 Papilioiiacccc in June and July. The butterfly and the larva are figured at PI. 14, Fig. 2, a, b. {P. 

 Caicstiiia, Eversm., from the south of France, and Russia, differs from Cyllavus in the uniform size 

 of the central row of eyes on the fore and hind wings beneath.1 



*8. P. Semiargiis (Rott.), P. Acis (Fabr.), {Mazarine Blue). — Male dark purplish-blue, with a 

 moderately large black border ; female uniform brown. Under side dull ash-colour, green at the 

 base, the central row of eyes of uniform size on the fore and hind wings, and with discoidal lunules. 

 Fore -wings with basal eyes. There are several varieties found in South-Eastern Europe and Asia 

 Minor with red marginal spots on the under side. Expands from i to \\ inches. Common in 

 meadows throughout Europe and Northern and Western Asia. A local insect in England, where 

 it has lately been so rare that it seemed to be becoming extinct. It is found from May to August. 

 The larva is covered with fine yellowish-green hair, with darker stripes on the back and sides. 

 The head, feet, and stigmata are dark brown. It lives on Aiithyllis vuhicraria in August and 

 September. 



9. P. Sebrus (Boisd.). — Male violet-blue, with a narrow black border ; female dark brown, 

 dusted with violet-blue at the base. Fringes very white. Under side grey, more or less bluish 

 at the base, and with discoidal lunules ; the central row of eyes rather small, and of uniform 

 size. Fore-wings with the eyes nearly straight, and near the hind margin, but with no basal 

 eyes. Hind-wings with two basal eyes ; the eyes of the hind-wings in an irregular series, twice 

 interrupted, and commencing with a single detached eye on the costa. Expands about i inch. 

 It inhabits diy places in mountainous districts in Europe, south of the Alps, and in Western 

 Asia from May to July. 



* 10. P. Minima (Fuessly), Alsns (W. V.), {Bedford Blue). — Brown, faintly dusted with silvery 

 blue in the male. Under side similar to Sebrus, but less tinged with blue at the base. The 

 eyes are much larger, and the central row of the hind-wings commences with two contiguous 

 spots on the costa. Expands a little under i inch. Common throughout Europe and Northern 

 and Western Asia from May to August. It is chiefly confined to chalk and limestone districts 

 in Britain. Larva dirty green, with a reddish stripe bordered with yellow on the back, and 

 similar oblique streaks and a yellowish line on the sides. It lives in June and August on 

 Coronilla varia, Astragalus eieer, and Mclilotus. The butterfly is figured at PI. 14, Fig. 3. 



* II. P. Argiolus (Linn.), {Azure Blue). — Blue; female with the hind margin of the fore-wings 

 and the costa of the hind-wings broadly black, and with a black discoidal spot on the fore-wings, 

 and black marginal dots on the hind-wings. Under side pale blue, with a central row of black 

 spots scarcely ocellated, and with black marginal spots which are indistinct except towards the 

 anal angle of the hind-wings. Discoidal lunules very slender ; no basal spots on the fore-wings. 

 Expands from i to i^ inches. It is common, but seldom very abundant, in open woods 



