Sunday, 27 January 2019

Red eyed Damselfly (Erythromma najaz) Nymph

With some sunny weather yesterday morning for a few hours, I decided on another visit to Grove Ferry where the plan was to spend some time dipping with the net to see what species could be found. I really wanted to try to locate some Small Red eyed Damselfly nymphs as I have yet to see one of these but although there are a few distinctive features to note, they can be quite tricky to identify. With this in mind, I spent a couple of hours dipping in a dyke where I noted plenty of adults during last season but with a lack of experience on this species and not that much written about them, I wasn't sure whether I would find them or whether they would be still in the egg stage. Nonetheless, I started to catch quite a few damselflies, mostly Azure and Blue tailed Damselflies but I then got quite lucky when I netted a distinctly larger nymph which I instantly recognised as a Red eyed Damselfly nymph. The small head, longer abdomen and three dark bands on the caudal lamellae all pointed to this species. I had only previously only netted one individual of this species so I put it into the tray with a view to taking it back home for a photographic session in my indoor tank. The next hour produced another 5 Red eyed Damselfly nymphs which was very encouraging and an area I will visit again soon to net again, as well as trying later in the season to see whether I can find an exuviae of this species to add to my collection. I also managed to net 4 Emperor Dragonfly nymphs as well as plenty more damselfly nymphs which were scrutinised to see whether any were Small Red eyed Damselfly nymphs, but I failed to find any likely individuals. As if the session was not already successful, I looked at a few trees overhanging the ditch and was pleased to find a good number of Willow Emerald Damselfly gall marks which was a new area to see them for me. Another area to take more of a look at in the summer months. With the weather forecast not looking good this morning, I spent an hour or so in my conservatory photographing a couple of Red eyed Damselfly nymphs which after a bit of playing around with settings and backgrounds, produced a few useable images. There were later returned back to their original ditch where I collected them from. I would hope for a few more nymph photography sessions in the next few weeks to keep me busy and maybe I will eventually find a Small Red eyed Damselfly if I persevere.
 





 Showing 3 faint dark bands on the Caudal lamellae
 
 Showing small head and long abdomen
 
Red eyed Damselfly (Erythromma najas) Nymph


10 comments:

  1. Exquisite images, Marc. I wish you all the best in your search for exuviae of the Small Red-eyed Damselfly, and look forward to seeing the results! Best wishes - - - Richard

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    1. Many thanks Richard. The exuviae wont be until summer time but I'm quite hopeful I may stumble across a Small Red eyed Damselfly nymph. If it's a well marked individual, then I should be able to identify it. I shall keep trying.

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    2. Must have been having a senior moment when I wrote 'exuviae', Marc!!

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  2. Fantastic Red-eyed Damselfly exuviae. Brilliant shown Marc.

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    1. Many thanks Bob although the exuviae won't be present until the summer when they emerge. Hopefully now I know a good area, I stand a better chance of finding an exuviae.

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  3. So delicately beautiful. You can see the gut tract in the last shot of the nymph.

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    1. Many thanks Wilma. Yes, indeed you can see it. I must admit I hadn't noticed but it's clear to see now.

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  4. Keep going entertaining me with your pics Marc. It is now official that the small birds are disappearing from my patch, so for the time being I am doing the photography for a friends book. Mike.

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    1. Will do Mike. In these cold days, it's nice to get indoors with some nymphs for a photography session. It's certainly warmer. Sounds interesting about the book. Is it a nature book?

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    2. Unfortuneately not Marc. It's on local history but it will do me a lot of good locally.

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