www.jesperbayjacobsen.com
Front page Birds (media) Other Photos Flora & Fauna (media) ebird taxonomy Mexican Species
Download Checklists My 5 Chickens Links About The Birding Program Observations
 
Flora & Fauna (media)
Black Darter (Sympetrum danae)    (Dragonflies)    24828
Sort Hedelibel (dk)   Svart Ängstrollslända (se)  
Hide text

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.
Black Darter 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.
Black Darter 547    (1 photos)
2021-07-21   Store Hareskov, Sjælland, Denmark

Imago. Male.
Black Darter 549    (1 photos)
2021-07-21   Store Hareskov, Sjælland, Denmark

Imago. Male. Less yellow on the abdomen than for example 546.
Black Darter 550    (2 photos)
2021-07-21   Store Hareskov, Sjælland, Denmark

Imago. Male. In picture 2 with Four-spotted Chaser.
Black Darter 552    (1 photos)
2021-07-21   Store Hareskov, Sjælland, Denmark

Imago. Male.
Black Darter 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.
Black Darter 536    (2 photos)
2021-07-21   Store Hareskov, Sjælland, Denmark

Imago. Female.
Black Darter 538    (2 photos)
2021-07-21   Store Hareskov, Sjælland, Denmark

Imago. Female. Immature.
Black Darter 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.
Black Darter 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).
Black Darter 542    (1 photos)
2021-07-21   Store Hareskov, Sjælland, Denmark

Imago. Female.
Black Darter 551    (2 photos)
2021-07-21   Store Hareskov, Sjælland, Denmark

Imago. Female. Immature.
Black Darter 534    (1 photos)
2021-07-21   Store Hareskov, Sjælland, Denmark

Imago. Immature with white wing marks.
Black Darter 537    (1 photos)
2021-07-21   Store Hareskov, Sjælland, Denmark

Imago. Immature.
Black Darter 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.
Black Darter 543    (1 photos)
2021-07-21   Store Hareskov, Sjælland, Denmark

Imago. Immature.
Black Darter 544    (2 photos)
2021-07-21   Store Hareskov, Sjælland, Denmark

Imago. Immature. No vulvar scale visible could indicate a male, but not guaranteed.
Black Darter 545    (2 photos)
2021-07-21   Store Hareskov, Sjælland, Denmark

Imago. Immature.
Black Darter 548    (1 photos)
2021-07-21   Store Hareskov, Sjælland, Denmark

Imago. Immature.
Black Darter 1067    (2 photos)
2022-08-06   Store Hareskov, Sjælland, Denmark

Imago. Male.
Young.
Black Darter 1069    (1 photos)
2022-08-06   Store Hareskov, Sjælland, Denmark

Imago. Male.
Young. Sexed by the appendages.
Black Darter 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.
Black Darter 1071    (1 photos)
2022-08-06   Store Hareskov, Sjælland, Denmark

Imago. Male.
Young male.
Black Darter 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.
Black Darter 1075    (1 photos)
2022-08-06   Store Hareskov, Sjælland, Denmark

Imago. Male.
Mature. A well-developed individual turned almost completely black in all parts.
Black Darter 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.
Black Darter 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.
Black Darter 1068    (1 photos)
2022-08-06   Store Hareskov, Sjælland, Denmark

Imago.
Young or female. Much black above the frons.
Happy Birding
© 2005-2022
Truthfullness - Compassion - Forbearance