White-faced Darter (Leucorrhinia dubia) (nymph) - Whixall Moss |
White-faced Darter (Leucorrhinia dubia) (nymph) - Whixall Moss |
White-faced Darter (Leucorrhinia dubia) (nymph) - Whixall Moss |
White-faced Darter (Leucorrhinia dubia) (emerging female) - Whixall Moss |
12h48 = datum + 058 minutes Dragonfly now emerged and hanging on to the exuvia
White-faced Darter (Leucorrhinia dubia) (newly emerged female) - Whixall Moss |
12h55 = datum + 065 minutes Wings now starting to fill out
Just seven minutes later and the emergent WFD was starting to look different. The green face was now yellow, and the wings were taking shape. It had also moved slightly higher up the blade of grass.
It was now getting more breezy and sunny weather was starting to give way to cloud. This meant that the newly emerged dragonfly was blowing around and making photography more difficult.
13h24 = datum + 094 minutes First partial opening of wings
At around this time I got the impression that the process had slowed down somewhat. This might well have been due to conditions turning dull and colder, with an increasing breeze.
13h41 = datum + 111 minutes Abdomen extending and starting to take on colour
14h23 = datum + 153 minutes Wings spread, abdomen extended, and markings visible
14h47 = datum + 177 minutes Markings clearly visible and abdomen well-coloured
Whilst taking those last two images, I sensed by the movement that she was ready to fly, and moments later she flew and disappeared into the distance. It had been almost exactly 3 hours from the nymph leaving the water to the flight of the teneral adult. This was the first time I'd ever watched the transition from nymph to teneral adult, but I hope it won't be the last.
My last act before heading homeward was to take the exuvia as a souvenir, and carefully place it in a glass phial that I'd taken for this very purpose! This itself was a rather hazardous process as it twice blew away as I was attempting to coax it into the phial!
White-faced Darter (Leucorrhinia dubia) (exuvia of female) - from Whixall Moss |
Lovely to see them again Richard and a great set they are. Quality wise, nothing wrong with these at all and hopefully I may get my own set at the weekend. Nice to see you posting here. A great place to share your photos.
RépondreSupprimerThank you, Marc. Good luck for Sunday!
RépondreSupprimerWelcome in our sect, Richard! Very beautiful series, even if you missed a part of it, but they are always difficult to find in their vague environment! That species is very localized in France, only in acid water as peat bogs. On one of the pictures (the 4th) we distinguish a carnivorous plant(Drosera intermedia, may be), see frequently in these places. Thank you for this beautiful sharing, greetings, M.
RépondreSupprimerThank you, Morikan, for your kind words of encouragement. This species is also extremely localised in England - only 2 locations, I believe!
SupprimerThe Drosera is Drosera rotundifolia, the Round-leaved Sundew. There is an image of this and more from the same day at http://peglerbirding.blogspot.co.uk/2016/06/white-faced-darter-on-23rd-may-2016.html.
Best wishes - - - Richard
Magnifique série et documentaire sur la Leucorrhinia dubia
RépondreSupprimerMerci de ce partage
Cdlt
Laurence
Thank you, Laurence!
SupprimerWOW, Richard, your coming back here is truly impressive!!
RépondreSupprimerI have never seen a WFD emerge and your footage is fantastic and very interesting!
This is one of my favourite odonata but I have to climb in altitude peatbogs to find it.
Many thanks for sharing this :)
It is you own work, Noushka, (and that of Marc Heath) that has inspired me to take more interest in the Odonata. Thank you for your encouragement. I think that the owls might be taking second place to dragons, and might have to wait until the end of the season!
SupprimerWarm wishes - - - Richard