THE I.KI'IDOPTI'.RA OF KSSEX. 99 



Epinephele tithonus, L. Large Heath. 



Geographical Distribution — Europe, except North-east, Asia Minor, Armeni:i. 

 Throughout Britain. 



Larva — Greenish-grey or ochreous freckled brown (variable), darker line on 

 back, light grey lines on sides ; head pale brown. Food — Grasses, especially 

 couch or twitch (JTriticuni). Imago — July to September ; hibernates as larva. 



Abundant everywhere in the county. 



Epinephele hyperanthus, L. Ringlet. 



Geographical Distribution — North and Central Europe, North and \Vest Asia, 

 probably to Japan (except polar regions). Throughout Britain. 



Larva — Reddish- or greenish-grey, darker line on back, two jeliowish-white 

 lines on sides ; head pale brown. Food — Grasses. Imago — June and Jul}- ; 

 hibernates as larva. 



This very lazy-flying woodland butterfly is common but local 

 throughout the county. [Extremely abundant in the Forest, near 

 Walthamstow, in the wet summer of i860; if I recollect rightly, 

 many of the specimens were without the eye-like spots on the under- 

 side of the wings. — W. Co/e.] 



Ccenonympha pamphilus, L. Small Heath. 



Geographical Distribution — Palaearctic region, except extreme north. 

 Throughout Britain. 



Larva — Bright green, darker line edged with paler on back and sides ; head 

 green, anal points pink. Food — Grasses, especially matgrass (^Xardus sii-icta^. 

 Imago — May to October ; hibernates as larva. 



Very common everywhere throughout the summer. 

 Thecla betulae, L. Brown Hairstreak. 



Geographical Distribution — Central Europe (extending to Scandinavia) and 

 Central Asia to the Amur. In Britain absent from Scotland. 



Larva — Apple-green, four 3'ellow lines on back and sides, two rows of oblique 

 yellow streaks ; head brown. There is a brown varietj'. Food — Blackthorn, 

 rarely plum. Imago — July to September ; hibernates as ovum. 



Rare in woods, generally flying high among trees, but sometimes 

 settled on flowers or bramble blossom. 



Larvaj on sloe, Epping Forest ( JV. H. Tugwell ; E. W.I. 

 iv. 125). Larvae swarming at Loughton {Argeftt ; Ent. v. 

 43). Larvae very common, Epping {Eedle ; Ent. xiv. 181). 

 Chingford {\V. H. Wright; Ent. xviii. 88). Epping {S.M. 

 i. 52). Larvae very abundant in Epping Forest, especially about 

 Loughton and High Beach {Argent ; B.B. 113), [and still common, 

 1890. — ^B. Ci. C.]. Larvae on blackthorn, Fairmead [Loughton] 

 ^English; Buxton s E.F. 100). I have found it there commonly. 



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