Blue Featherleg (Platycnemis pennipes)
Species
Blue Featherleg (Platycnemis pennipes). Male. Taken at Whitecross Green Wood, Oxon., on July 25th 2023.
Male. Taken at Whitecross Green Wood, Oxon., on July 25th 2023.
(1/640th sec at f13. Click image for larger version. © David Hastings)
Blue Featherleg (Platycnemis pennipes). Male. Taken at Whitecross Green Wood, Oxon., on July 25th 2023.
Male. Taken at Whitecross Green Wood, Oxon., on July 25th 2023.
(1/1000th sec at f13. Click image for larger version. © David Hastings)
Blue Featherleg (Platycnemis pennipes). Female. Taken at Whitecross Green Wood, Oxon., on June 10th 2021.
Female. Taken at Whitecross Green Wood, Oxon., on June 10th 2021.
(1/500th sec at f11. Click image for larger version. © David Hastings)
Blue Featherleg (Platycnemis pennipes). Female. Taken at Whitecross Green Wood, Oxon., on June 26th 2023.
Female. Taken at Whitecross Green Wood, Oxon., on June 26th 2023.
(1/640th sec at f13. Click image for larger version. © David Hastings)
Pair of Blue Featherlegs in cop (Platycnemis pennipes). Pair in cop. Taken at Byal gradets, Bulgaria, on June 21st 2014.
Pair in cop. Taken at Byal gradets, Bulgaria, on June 21st 2014.
(1/250th sec at f13. Click image for larger version. © David Hastings)

Description

Wing span: 38 - 46 mm; body length: 35 - 37 mm

Also known as the White-legged Damselfly. Males are the only Platycnemis that become all-blue, but appear paler than other blue damsels due to less black and a lighter blue colour. The male has no tail light, but S7-10 are separated by a pale central line, thus appearing paired.

This species is found widely in Europe, and is the only member of the genus found in Britain, where it is restricted to southern England.

It favours unshaded, slow-flowing muddy rivers with abundant emergent and floating vegetation. The larvae appear to be able to tolerate brackish conditions.

Eggs are laid while in tandem into stems of emergent plants and the underside of floating leaves. The larvae take two years to mature. The flight period is from May to September, with a peak in June and July.

After emerging, adults tend to congregate in the shelter of tall vegetation. Individuals can sometimes be found well away from water.

A locally common species.

Sightings

25-Jul-2023 : Whitecross Green Wood, Oxon (1)
26-Jun-2023 : Whitecross Green Wood, Oxon (2)

29-Jul-2022 : Radley Lakes, Oxon (1f)

07-Jun-2021 : Whitecross Green Wood, Oxon (1ten)

06-Jun-2017 : Plitvicka Jezera National Park, Croatia (1)
05-Jun-2017 : Gornje Taboriste, Croatia (2)

22-Jul-2015 : Kresna Gorge, Bulgaria
20-Jul-2015 : nr Samokov, Bulgaria
20-Jul-2015 : Kresna Gorge, Bulgaria

26-Jun-2014 : Kresna Gorge, Bulgaria
25-Jun-2014 : Rupite Hot Springs, Bulgaria
21-Jun-2014 : Zhelezhari, Bulgaria
21-Jun-2014 : Byal gradets, Bulgaria
19-Jun-2014 : nr Mirovo, Bulgaria
19-Jun-2014 : Susam Reservoir, Bulgaria
01-Jun-2014 : Goring, Oxon (1)

27-Jun-2010 : The Brenne, Loire Valley, France
26-Jun-2010 : The Brenne, Loire Valley, France
24-Jun-2010 : The Brenne, Loire Valley, France