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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

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  1. RoyW

    Dragonflies - Danube Delta, Romania

    I agree with Ruddy Darter + the damsel is a Willow Spreadwing, possibly Eastern Willow Spreadwing based on the relatively dark brown pterostigmata, which are the brown 'spots' on each wing (it's not possible to be certain from this photo though and it could be a Western Willow Spreadwing - their...
  2. RoyW

    Wasp 1 - Darter 0

    A nice series of shots!
  3. RoyW

    Damselfly Id help please-SW Turkey

    I would be happy to call this C. scitulum.:t:
  4. RoyW

    Darter ID UK

    Yes, Ruddy D.
  5. RoyW

    dragonfly netherlands id

    I agree, an immature male.
  6. RoyW

    Locust - Landguard, Suffolk

    I've just seen a photo of one of these on another forum which was taken today (with another nearby), so they are still present. As for the origin - true migrants, ship assisted, or released? Who knows!
  7. RoyW

    Dragon/Damselfly Id ~SW Turkey

    I agree, a Long Skimmer and a good record. It would be worth reporting details of the sighting to Vincent Kalkman (at the email address in the pdf linked by honeym).
  8. RoyW

    Oman dragonflies (2)

    Looks very much like it to me. (It's not I. evansii because that species has very short inferior abdomenal appendages which would be difficult to make out in this photo - but the inferior appendages are clearly visible).
  9. RoyW

    Kenya & Tanzania Dragonflies Nov/Dec 12

    This is an Orthetrum species (a skimmer). It is probably possible to get a specific ID from the details visible in this photo, but I would need to check some literature!
  10. RoyW

    Kenya & Tanzania Dragonflies Nov/Dec 12

    There is nothing at all readily available for East Africa at present - South African guides (eg. Samways) cover many of the species, but any ID that use them (including the ones I have suggested) has to take into account the fact that there may be similar closely related species...
  11. RoyW

    Kenya & Tanzania Dragonflies Nov/Dec 12

    Black Emperor, Anax tristis.
  12. RoyW

    Kenya & Tanzania Dragonflies Nov/Dec 12

    I agree with the three ID's that Paul has given, and would suggest that No. 2 is Orthetrum trinacria (Long Skimmer). I also agree with Scarlet Darter (AKA Broad Scarlet) for No. 4, but think that No. 5 may well be Southern Banded Groundling, Brachythemis leucosticta.
  13. RoyW

    Shimba Hills NP Dragonflies 5 Dec 12

    Try the following: 1). Voyaging Glider, Tramea limbata. 2). Portia Widow, Palpopleura portia. 3). Red-veined Dropwing, Tithemis arteriosa. 4). An Orthetrum species (several very similar species - I'm not even going to try!). 5). Black-splashed Elf, Tetrathemis polleni.
  14. RoyW

    Kenyan Damselflies (Shimba Hills NP) Dec 12

    The first one is likely to be Painted Sprite, Pseudagrion hageni. The second is a bit blurred, but might be Slate Sprite, Pseudagrion salisburyense. There are similar species though.
  15. RoyW

    Bulgarian Dragonfly for ID

    Interesting Paul! I haven't pulled any books off the shelf to see if any more features are mentioned for identification of Southern Skimmer - but I will have a look sometime (though probably not until the new year).
  16. RoyW

    Bulgarian Dragonfly for ID

    I was hoping that you'd find that other wings had more doubled cells - or less than this! I think that I was over confident when I originally agreed with Keeled Skimmer, I"m now not convinced either way! I agree, and as is the case with some bird species pairs, there is the potential for any...
  17. RoyW

    Bulgarian Dragonfly for ID

    It’s possible that you may have to leave this one as unconfirmed – it’s either O. coerulescens, or O. brunneum, but which one? The spots either side of the mid dorsal line are an unreliable feature, and can be separated from the line in coerulescens – and it is also possible that the dark...
  18. RoyW

    Bulgarian Dragonfly for ID

    I agree with Andy, this is a Keeled Skimmer. The thorax tends to be a plainer brown colour in Southern Skimmer (with less pronounced pale stripes and dark areas), the thorax will tend to be noticeably broader, and the pterostigma tend to be shorter (the pterostigma on Keeled Skimmer tend to be...
  19. RoyW

    South Indian Dragons for ID please

    Try the following: 1. Aethriamanta brevipennis (female). 2. Neurothemis fulvia (male). 3. Rhyothemis variegata (male). 4. Urothemis signata (male). 5. Aethriamanta brevipennis (male). Note - I can't guarantee that any of these are correct, especially the Neurothemis, which may be one of the...
  20. RoyW

    One more Indian Dragon

    This one is Orthetrum sabina, I'll take a look at the other post tomorrow (going out now), on first glance I can only be certain of genera for most of them.
  21. RoyW

    Id. Help, Please

    1 & 2. Blue Dashers, Pachydiplax longipennis 3. Roseate Skimmer, Orthemis ferruginea
  22. RoyW

    Qustion Regarding L. quadrimaculata f.praenubila

    It's maintained into maturity, and can be very variable in its extent.
  23. RoyW

    Red Veined or Common Darter?

    I would tend to favour Southern Darter for the second photo - but I don't think that it can be identified with any certainty from what we can see. If there aren't any other photos that might help, I would suggest that the identification should be left at genus level.
  24. RoyW

    Common Darter Germany July 2012

    Bingo!;):t:
  25. RoyW

    Dragonfly ID at Rainham

    Yes, it's a Migrant Hawker.
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