Black hairstreak: Difference between revisions
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[[Category:Satyrium (butterfly)]] |
[[Category:Satyrium (butterfly)]] |
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[[Category:Butterflies of Asia]] |
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[[Category:Butterflies described in 1758]] |
[[Category:Butterflies described in 1758]] |
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[[Category:Endangered species of the British Isles]] |
[[Category:Endangered species of the British Isles]] |
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Revision as of 23:20, 14 June 2018
 | This article needs additional citations for verification. (December 2013) |
| Black hairstreak | |
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| Species: | S. pruni
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| Binomial name | |
| Satyrium pruni | |
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Fixsenia pruni | |
The black hairstreak (Satyrium pruni) is a butterfly in the family Lycaenidae.
_female_laying_egg.jpg)
Whitecross Green Wood, Oxfordshire
Distribution
It is present in much of Europe, Russia and the Middle East.It is also present in much of Asia, Siberia and on to Korea and Japan.
Great Britain
it is rare in Great Britain and restricted to a number of sites in the south and east Midlands, between Oxford and Peterborough. The largest breeding colony is in Ham Home-cum-Hamgreen Woods in Buckinghamshire.[1] Historically there have been around 90 known colonies since its discovery in 1828 but there have been many, mostly unsuccessful, introductions at various locations in southern England including one in Surrey in 1952 that seemed to be successful until the habitat was destroyed. It is now one of the rarest butterflies in Great Britain.[2]
In June 2018, it was announced that a large population had been discovered in East Sussex.[3]
Appearance, behaviour
Note that information on this species applies to Great Britain and some details may not be consistent with the species in other parts of its range.
This small brown butterfly is very similar to the white-letter hairstreak but the black hairstreak has a row of orange spots along the edge of the upper-side hindwing. In the female these spots also extend to the forewings. The undersides are similar to the white-letter but the white line tends to be straighter and the orange border extends onto the 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.
Life cycle and foodplants
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 and feeds on the flower buds. Older larvae are green and well camouflaged against the leaves on which they feed. Pupation takes place on leaves or twigs in June and the pupae are patterned black and white to mimic a bird dropping, as a defence against being eaten. The adult butterflies of this single-brood (univoltic) species are on the wing from the end of June to mid July.
See also
External links
- Fauna Europaea Distribution by country and region.
- ^ "Ham Home-cum-Hamgreen Woods citation" (PDF). Sites of Special Scientific Interest. Natural England. Archived from the original (PDF) on 4 March 2016. Retrieved 13 March 2016.
{{cite web}}: Unknown parameter|deadurl=ignored (|url-status=suggested) (help) - ^ http://www.ukbutterflies.co.uk/species.php?species=pruni
- ^ https://www.sussex-butterflies.org.uk/news/#76