Black hairstreak forewings. The most conclusive way to distinguish the two is by the row of black spots accompanying the orange band which the white-letter hairstreak never has. They spend most of their lives in the canopy or in dense scrub, feeding on honeydew, and very rarely come down to ground level. Eggs are laid singly on young blackthorn "Prunus spinosa" growth and it is this stage which hibernates. Although blackthorn is the main foodplant, wild plum "Prunus domestica" and other "Prunus" spp are occasionally used. The caterpillar hatches the following spring, at the end of April, just before the buds open
Prunus davidiana In China it is largely used as an ornamental, and the fruit is eaten, but not prized. In peach growing regions throughout the world it is used as a source of rootstocks. "Prunus" is the ancient Latin name for plum trees. "Davidiana" is named for L'Abbé Armand David (1826-1900), a missionary and collector of Chinese plants. Prunus davidiana Prunus davidiana (syn. Amygdalus davidiana, Persica davidiana, Prunus persica var. davidiana) is a species in the genus "Prunus" in the family Rosaceae. It is also known by the common names David's peach and Chinese wild peach. It is native to China, preferring