DragonflyPix

Mediterranean Bluet (Coenagrion caerulescens)

• Scientific name: Coenagrion caerulescens (Fonscolombe, 1838)
• English name: Mediterranean Bluet
• German name: Südliche Azurjungfer
• French name: Agrion bleuissant
• Dutch name: Zuidelijke waterjuffer
• Swedish name: N/A
• Norwegian name: N/A
• Finnish name: N/A
• Danish name: N/A
• Italian name: Azzurrina mediterranea
• Czech name: N/A
• Slovenian name: Zahodni škratec
• Bulgarian name: N/A
• Typical length: 30-33 mm
• Hindwing: 14-21 mm

Mediterranean Bluet (Coenagrion caerulescens)

Distribution map

Map data based on J.-P. Boudot & V. J. Kalkman (eds.),
Atlas of the European Dragonflies and Damselflies

The Mediterranean Bluet is one of a trio of very similar-looking Mediterranean species of the genus Coenagrion, the other two being C. mercuriale and C. scitulum. Coenagrion caerulescens is a small, black-and-blue damselfly. It has a limited distribution with scattered populations in Iberia and France, and only on the East coast of Spain and in Italy is the species reasonably common and numerous. Its main distinguishing features include the triangular shape of the pterostigma, its preference for running rather than stagnant waters, and the female's pale colouration, wide antehumeral stripes and oversized postocular spots. Our best site for the species to date, a small stream with a rocky bed, dried up completely during the hot and dry summer of 2007, but in the two following summers the species managed to stage a remarkable come-back. For a comparison of the male appendages in these three species, hover your mouse pointer here.

Line DrawingLineDrawing: the male's and the female's abdomen in dorsal view.

Click on a thumbnail to display the photograph (at 1200 x 800 pixels) in a new window.

1 / 20; PhotoID: Da378 11/05/2009 14:37 Italy F5.6 1/250 180mm ISO100 Canon50D -Crop -Flash MF
2 / 20; PhotoID: Da379 11/05/2009 14:12 Italy F8 1/180 180mm ISO100 Canon50D -Crop -Flash MF
3 / 20; PhotoID: Da380 07/05/2016 13:05 Italy F8 1/125 180mm ISO200 Canon7D2 -Crop -Flash MF
4 / 20; PhotoID: Da383 21/05/2011 15:14 Italy F8 1/160 180mm ISO200 Canon7D -Crop -Flash MF
5 / 20; PhotoID: Da384 02/06/2015 13:30 Italy F8 1/100 180mm ISO400 Canon7D2 -Crop -Flash MF
6 / 20; PhotoID: Da393 21/05/2011 14:02 Italy F8 1/160 180mm ISO200 Canon7D -Crop -Flash MF
7 / 20; PhotoID: Da385 28/04/2008 15:05 Italy F8 1/60 180mm ISO100 Canon40D -Crop -Flash MF
8 / 20; PhotoID: Da386 08/05/2008 14:32 Italy F5.6 1/350 180mm ISO100 Canon40D -Crop -Flash MF
9 / 20; PhotoID: Da387 22/05/2014 14:09 Italy F9.5 1/250 180mm ISO400 Canon7D -Crop -Flash MF
10 / 20; PhotoID: Da388 14/04/2008 11:23 Italy F8 1/250 180mm ISO200 Canon40D -Crop -Flash MF
11 / 20; PhotoID: Da389 14/07/2016 12:51 Italy F8 1/200 180mm ISO400 Canon7D2 -Crop -Flash MF
12 / 20; PhotoID: Da390 17/05/2009 12:44 Italy F5.6 1/180 180mm ISO100 Canon50D -Crop -Flash MF
13 / 20; PhotoID: Da391 10/06/2016 11:48 Italy F8 1/50 180mm ISO400 Canon7D2 -Crop -Flash MF
14 / 20; PhotoID: Da392 03/05/2013 10:08 Italy F8 1/60 180mm ISO200 Canon7D -Crop -Flash MF
15 / 20; PhotoID: Da394 21/05/2011 15:45 Italy F9 1/250 180mm ISO200 Canon7D -Crop -Flash MF
16 / 20; PhotoID: Da395 03/05/2013 10:57 Italy F8 1/125 180mm ISO200 Canon7D -Crop -Flash MF
17 / 20; PhotoID: Da396 07/05/2008 12:44 Italy F8 1/180 180mm ISO100 Canon40D -Crop -Flash MF
18 / 20; PhotoID: Da397 03/05/2013 11:15 Italy F8 1/125 180mm ISO200 Canon7D -Crop -Flash MF
19 / 20; PhotoID: Da398 24/04/2008 14:11 Italy F8 1/60 180mm ISO100 Canon40D -Crop -Flash MF
20 / 20; PhotoID: Da399 24/04/2008 13:49 Italy F8 1/125 180mm ISO100 Canon40D -Crop -Flash MF