Satyrium w-album - White-letter Hairstreak - Iepenpage - Ulmen Zipfelfalter
The uppersides, rarely seen at rest, are dark brown and grey sex-brand on the male's forewing. The only markings are one or two fainte oranges spots at the rear corner of each hindwing. The undersides are dull brown with a white streak on each wing, the streak on the hinndwing usually forming a disting W. There are four or five confluent orange lunules, outlined in bllack, beyod the W. No other hairstreak has such a dark upperside or the incipient second tail. Flight from June to August in light woodland and hedgegrows with elms and Bramble. Usually the butterflies staying high in the trees; the come down with warm weather to feed at bramble or other flowers. The larval foodplants are Elms.