DragonflyPix

Iberian Bluetail (Ischnura graellsii)

• English name: Iberian Bluetail
• German name: Spanische Pechlibelle
• French name: Agrion noir
• Dutch name: Iberisch lantaarntje
• Swedish name: N/A
• Norwegian name: N/A
• Finnish name: N/A
• Danish name: N/A
• Italian name: N/A
• Czech name: N/A
• Slovenian name: N/A
• Bulgarian name: N/A

Iberian Bluetail (Ischnura graellsii)

Distribution map Ischnura graellsii

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


General ➤ a small species, very similar to I. elegans, which in Europe occurs only in Iberia (and the French Pyrenees)
Classification • suborder: Zygoptera (damselflies); family: Coenagrionidae
Scientific name Ischnura graellsii (Rambur, 1842)
Distribution • click or tap the Map button above
Notes • belongs to the elegans group, together with I. elegans, I. genei and I. saharensis
  • co-occurs with I. elegans in Spain
  violacea and rufescens are immature female colour forms, which with age develop into one of the three mature forms: violacea (with its antehumeral stripe) into either typica or infuscans; rufescens (without an antehumeral stripe) into infuscans-obsoleta; see below for details
Habitat • any still or running water
Dimensions • typical body length: 26-31 mm; hindwing: 13-19 mm
Both sexesWings• the pterostigma in the forewing is the same size as that in the hindwing
MaleThorax• the lower side of the thorax and the antehumeral stripe (which may be narrow or even absent) are green/blue
  ➤ the pronotum does not bear an upright projection
 Abdomen• the abdomen is black on top, but S8 is sky blue
 Wings• the pterostigma in the forewing is bicoloured: black on the inside, white on the outside; the pterostigma in the hindwing is uniformly beige/brown
FemaleThorax• the side of the thorax is either green/blue (in the form typica), pale lilac (in the form violacea), orange/pink (in the form rufescens), or green-orange-brown (in the forms infuscans and infuscans-obsoleta)
  • the antehumeral stripe is of the same colour as the side of the thorax (see above) but is absent in the forms rufescens and infuscans-obsoleta
 Abdomen➤ the abdomen is black on top, but S8 is sky blue in the forms typica, violacea and rufescens or brown in the forms infuscans and infuscans-obsoleta; this tail-light tends to be interrupted by a black mark on either end, and it may even be (virtually) absent
  • the abdomen has a vulvar spine underneath S8
 Wings• the pterostigma is uniformly beige/brown in both wings
Photographs • nearly all of our photos below were made in Extremadura and Andalusia

Males in the elegans group; pronotum
I. elegans (1), I. genei (2), I. graellsii (3), I. saharensis (4)
Note the upright projection in I. elegans; it is absent in the other species.

Ischnura graellsii; abdomen, female
Note: By contrast, this blue tail-light on S8 tends to be uninterrupted in I. elegans.

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

Ischnura graellsii, thumbnail 1 / 20
Iberian Bluetail (Ischnura graellsii f. typica) ♀

1 / 20; PhotoID: Da718 21/09/2008 10:48 Spain F5.6 1/125 180mm ISO200 Canon40D -Crop -Flash MF
Ischnura graellsii, thumbnail 2 / 20
Iberian Bluetail (Ischnura graellsii) ♂

2 / 20; PhotoID: Da719 19/09/2014 10:53 Spain F8 1/30 180mm ISO200 Canon7D -Crop -Flash MF
Ischnura graellsii, thumbnail 3 / 20
Iberian Bluetail (Ischnura graellsii) ♂

3 / 20; PhotoID: Da720 10/06/2017 12:03 Spain F10 1/125 180mm ISO200 Canon7D2 -Crop -Flash MF
Ischnura graellsii, thumbnail 4 / 20
Iberian Bluetail (Ischnura graellsii) ♂

4 / 20; PhotoID: Da721 04/07/2011 09:59 Spain F10 1/125 180mm ISO200 Canon7D -Crop -Flash MF
Ischnura graellsii, thumbnail 5 / 20
Iberian Bluetail (Ischnura graellsii f. infuscans) ♀

5 / 20; PhotoID: Da722 20/09/2014 10:31 Spain F8 1/45 180mm ISO400 Canon7D -Crop -Flash MF
Ischnura graellsii, thumbnail 6 / 20
Iberian Bluetail (Ischnura graellsii f. violacea) ♀

6 / 20; PhotoID: Da723 23/09/2008 10:49 Spain F8 1/250 180mm ISO200 Canon40D -Crop -Flash MF
Ischnura graellsii, thumbnail 7 / 20
Iberian Bluetail (Ischnura graellsii f. violacea) ♀

7 / 20; PhotoID: Da724 01/06/2018 10:44 Spain F8 1/320 180mm ISO200 Canon7D2 -Crop -Flash MF
Ischnura graellsii, thumbnail 8 / 20
Iberian Bluetail (Ischnura graellsii) ♂

8 / 20; PhotoID: Da725 23/09/2014 10:08 Spain F8 1/125 180mm ISO200 Canon7D -Crop -Flash MF
Ischnura graellsii, thumbnail 9 / 20
Iberian Bluetail (Ischnura graellsii f. infuscans) ♀

9 / 20; PhotoID: Da726 20/09/2014 10:35 Spain F8 1/90 180mm ISO200 Canon7D -Crop -Flash MF
Ischnura graellsii, thumbnail 10 / 20
Iberian Bluetail (Ischnura graellsii f. infuscans) ♀

10 / 20; PhotoID: Da727 23/09/2014 11:53 Spain F8 1/20 180mm ISO200 Canon7D -Crop -Flash MF
Ischnura graellsii, thumbnail 11 / 20
Iberian Bluetail (Ischnura graellsii f. rufescens) ♀

11 / 20; PhotoID: Da728 31/05/2018 12:05 Spain F8 1/250 180mm ISO400 Canon7D2 -Crop -Flash MF
Ischnura graellsii, thumbnail 12 / 20
Iberian Bluetail (Ischnura graellsii) ⚤

12 / 20; PhotoID: Da729 06/06/2017 15:09 Spain F8 1/250 180mm ISO200 Canon7D2 -Crop -Flash MF
Ischnura graellsii, thumbnail 13 / 20
Iberian Bluetail (Ischnura graellsii f. rufescens) ♀

13 / 20; PhotoID: Da730 01/06/2018 10:02 Spain F8 1/400 180mm ISO200 Canon7D2 -Crop -Flash MF
Ischnura graellsii, thumbnail 14 / 20
Iberian Bluetail (Ischnura graellsii) ♂

14 / 20; PhotoID: Da731 26/08/2010 09:47 Spain F8 1/125 180mm ISO100 Canon7D -Crop -Flash MF
Ischnura graellsii, thumbnail 15 / 20
Iberian Bluetail (Ischnura graellsii) ⚤

15 / 20; PhotoID: Da732 06/06/2017 15:25 Spain F10 1/200 180mm ISO200 Canon7D2 -Crop -Flash MF
Ischnura graellsii, thumbnail 16 / 20
Iberian Bluetail (Ischnura graellsii) ♂

16 / 20; PhotoID: Da733 23/09/2014 11:30 Spain F8 1/60 180mm ISO200 Canon7D -Crop -Flash MF
Ischnura graellsii, thumbnail 17 / 20
Iberian Bluetail (Ischnura graellsii) ♂

17 / 20; PhotoID: Da734 23/09/2014 14:16 Spain F8 1/500 180mm ISO200 Canon7D -Crop -Flash MF
Ischnura graellsii, thumbnail 18 / 20
Iberian Bluetail (Ischnura graellsii) ♂

18 / 20; PhotoID: Da737 23/09/2014 14:32 Spain F8 1/60 180mm ISO200 Canon7D -Crop -Flash MF
Ischnura graellsii, thumbnail 19 / 20
Iberian Bluetail (Ischnura graellsii f. typica) ♀

19 / 20; PhotoID: Da739 27/09/2008 10:41 Spain F8 1/180 180mm ISO200 Canon40D -Crop -Flash MF
Ischnura graellsii, thumbnail 20 / 20
Iberian Bluetail (Ischnura graellsii) ♂

20 / 20; PhotoID: Da740 23/09/2014 11:23 Spain F8 1/60 180mm ISO200 Canon7D -Crop -Flash MF