Black Darter
(Sympetrum danae) (Dragonflies) 24828
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Imago:
In Denmark male unique. Separated from whitefaces by black frons.
Immatures and females have a brown triangle on top of thorax, where Ruddy shows a T-shape. And they show three yellow dots on side of black part of the thorax. The vulvar scale on females is as prominent as on Moustached Darter.
Wing marks are white on immatures and black on mature individuals.
546 (1 photos) 2021-07-21 Store Hareskov, Sjælland, Denmark
Imago. Male. Apparently the extention of yellow on the proximal part of the abdomen is variable. As is probably the white edges on the wing marks.
547 (1 photos) 2021-07-21 Store Hareskov, Sjælland, Denmark
Imago. Male.
549 (1 photos) 2021-07-21 Store Hareskov, Sjælland, Denmark
Imago. Male. Less yellow on the abdomen than for example 546.
550 (2 photos) 2021-07-21 Store Hareskov, Sjælland, Denmark
Imago. Male. In picture 2 with Four-spotted Chaser.
552 (1 photos) 2021-07-21 Store Hareskov, Sjælland, Denmark
Imago. Male.
535 (1 photos) 2021-07-21 Store Hareskov, Sjælland, Denmark
Imago. Female. The vulvar scale is just visible indicating it's a female. And the white wing marks that is still immature.
536 (2 photos) 2021-07-21 Store Hareskov, Sjælland, Denmark
Imago. Female.
538 (2 photos) 2021-07-21 Store Hareskov, Sjælland, Denmark
Imago. Female. Immature.
539 (1 photos) 2021-07-21 Store Hareskov, Sjælland, Denmark
Imago. Female. Immature with wing marks starting to get dark. Broad black line going down side of frons like on Moustached and Ruddy.
541 (1 photos) 2021-07-21 Store Hareskov, Sjælland, Denmark
Imago. Female. The dark wing marks indicate it is a mature female, and as you can see here, the vulvar scale is not very prominent. Partly because of the viewing angle, but also because it is moveable, and can be retracted into the lower part of the abdomen (mentioning this because my guide books don't seem to explain this).
542 (1 photos) 2021-07-21 Store Hareskov, Sjælland, Denmark
Imago. Female.
551 (2 photos) 2021-07-21 Store Hareskov, Sjælland, Denmark
Imago. Female. Immature.
534 (1 photos) 2021-07-21 Store Hareskov, Sjælland, Denmark
Imago. Immature with white wing marks.
537 (1 photos) 2021-07-21 Store Hareskov, Sjælland, Denmark
Imago. Immature.
540 (1 photos) 2021-07-21 Store Hareskov, Sjælland, Denmark
Imago. Immature. No vulvar scale visible indicating male, but as with other darters I've seen it is not always showing why I will not sex this individual.
543 (1 photos) 2021-07-21 Store Hareskov, Sjælland, Denmark
Imago. Immature.
544 (2 photos) 2021-07-21 Store Hareskov, Sjælland, Denmark
Imago. Immature. No vulvar scale visible could indicate a male, but not guaranteed.
545 (2 photos) 2021-07-21 Store Hareskov, Sjælland, Denmark
Imago. Immature.
548 (1 photos) 2021-07-21 Store Hareskov, Sjælland, Denmark
Imago. Immature.
1067 (2 photos) 2022-08-06 Store Hareskov, Sjælland, Denmark
Imago. Male.
Young.
1069 (1 photos) 2022-08-06 Store Hareskov, Sjælland, Denmark
Imago. Male.
Young. Sexed by the appendages.
1070 (2 photos) 2022-08-06 Store Hareskov, Sjælland, Denmark
Imago. Male.
Adult male. Unmistakable with the pale markings at the base of the abdomen and laterally on S7-8; and the three yellow spots on the side of the thorax. Separating it from Small Whiteface [Lille Kærguldsmed] which superficially looks similar and inhabits the same locality.
1071 (1 photos) 2022-08-06 Store Hareskov, Sjælland, Denmark
Imago. Male.
Young male.
1072 (1 photos) 2022-08-06 Store Hareskov, Sjælland, Denmark
Imago. Male.
Young male. The closely positioned appendages and the visible secondary genitalia below S2 define the sex.
1075 (1 photos) 2022-08-06 Store Hareskov, Sjælland, Denmark
Imago. Male.
Mature. A well-developed individual turned almost completely black in all parts.
1065 (1 photos) 2022-08-06 Store Hareskov, Sjælland, Denmark
Imago. Female.
Looks pale, like a young individual - especially the dark neck triangle is weakly defined.
1074 (1 photos) 2022-08-06 Store Hareskov, Sjælland, Denmark
Imago. Female.
Mature. The vulvar scale is very prominent and protruding in a right angle is characteristic of the species.
1068 (1 photos) 2022-08-06 Store Hareskov, Sjælland, Denmark
Imago.
Young or female. Much black above the frons.