Few people have witnessed Purple Emperors mating, mainly because it takes place high in the tree tops.
Yesterday at Knepp Wildland, I saw a pair join in the highest spray of a 60' tall oak, at 4.26 pm, after a short follow-my-leader courtship flight. They settled on a twig, rather than on leaves. They remained joined, end to end and wings closed, until cloud came over after 7.30, and they separated. They had mated for around 3 hrs 12-18 mins.
They then roosted 2' apart there. A second male came in and roosted close by.
This is the 14th pairing I've seen from start to finish. Mating averages out at around 3 hours 40 minutes.
Lousy photos of course, due to distance -
Males are still emerging at Knepp, and the bulk of the females is probably yet to emerge - indicating, again, an unusually protracted emergence.
Wednesday, July 10, 2019
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