Donkere waterjuffer (Coenagrion armatum)
• English name: Dark Bluet
• German name: Hauben-Azurjungfer
• French name: Agrion armé
• Dutch name: Donkere waterjuffer
• Swedish name: Griptångsflickslända
• Norwegian name: Armert blåvannymfe
• Finnish name: Vihertytönkorento
• Danish name: Hue-vandnymfe
• Italian name: N/A
• Czech name: šidélko ozbrojené
• Slovenian name: N/A
• Bulgarian name: N/A
Donkere waterjuffer
(Coenagrion armatum)
Not present
Present before 1990
Present after 1990
Present before and after 1990
Present after 2015

Map data based on J.-P. Boudot & V. J. Kalkman (eds.),
Atlas of the European Dragonflies and Damselflies
| General | • a small, dark-looking species which occurs mainly in north-eastern Europe | |
| Classification | • suborder: Zygoptera (damselflies); family: Coenagrionidae | |
| Conservation status | • IUCN Red List Europe: Least Concern | |
| Scientific name | • Coenagrion armatum (Charpentier, 1840) | |
| Name genus | • Coenagrion: from Grk. κοινός = common, widespread +; ἄγριος = wild, living in the fields | |
| Name species | • armatum: from Lat. armatus, -a, -um = armed ⇒ presumably for the male's very large lower appendages | |
| Distribution | • click or tap the Map button above | |
| Habitat | • shallow lakes and ponds with fairly dense vegetation | |
| Dimensions | • typical body length: 31-34 mm; hindwing: 16-21 mm | |
| Both sexes | Abdomen | ➤ the top of the abdomen is all black except for S1-S2 and S8-S9 |
| Wings | • the pterostigma is uniformly dark brown to grey | |
| Male | Thorax | • the antehumeral stripe is heavily reduced or even absent |
| Abdomen | • the abdomen has a W-shaped mark on S2 | |
| • S1, S2, S8 and S9 are mostly blueish green | ||
| ➤ the lower appendages are very large | ||
| Female | Thorax | • the antehumeral stripe is wide |
| • the hind margin of the pronotum has a narrow lobe in the middle; see also the LineDrawing below | ||
| Abdomen | ➤ S1, S2 and S8 are mostly sky blue | |
| Photographs | • all of our photos below were made in Sweden and Finland |
LineDrawing: the female's pronotum in dorsal and lateral view.


