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

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  1. Ashton.P

    Dragonfly ID Pointers

    Is this reliable? A quick look at photographs in 'Smallshire and Swash' would indicate that this isn't the case. Some of the male Variables don't have this mark and some are reduce to two faint spots, rather than a bar. A photograph of a male Azure has two faint spots, and a female has a full...
  2. Ashton.P

    Dragonfly ID Pointers

    Link to a composite photo showing the key differences between Variable, Azure and Common Blue Damelflies. In all species there can be some variability, and it's best to not solely rely on one identification feature. http://www.erdragonflies.co.uk/id/bluedamselflies.htm
  3. Ashton.P

    Dragonfly ID Pointers

    Adrian, Immature male Broad-bodied Chaser. Paul.
  4. Ashton.P

    Dragonfly ID Pointers

    Hi Ken, Photo attached showing the thin antehumeral stripes and yellow costa (edge of wing) of a male Common Hawker, also second picture of female showing minimal antehumeral but still obvious yellow costa. Regards, Paul. East Riding Dragonflies
  5. Ashton.P

    Dragonfly ID Pointers

    Another picture showing parts of Dragonflies.
  6. Ashton.P

    Dragonfly ID Pointers

    Further to Adey`s Common Blue/Azure id points here are two more, which although both picture males, are also good for females. A) Antehumaral strip is broader than the adjacent black stripe on Common Blue and the reverse on Azure. B) Common Blue lacks the black coenagrion spur on the side of...
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