DragonflyPix

Cordulegaster trinacriae

• Scientific name: Cordulegaster trinacriae Waterston, 1976
• English name: Italian Goldenring
• German name: Italienische Quelljungfer
• French name: N/A
• Dutch name: Italiaanse bronlibel
• Swedish name: N/A
• Norwegian name: N/A
• Finnish name: N/A
• Danish name: N/A
• Italian name: Guardaruscello meridionale
• Czech name: N/A
• Slovenian name: N/A
• Bulgarian name: N/A
• Typical length: 73-79 mm
• Hindwing: 45-49 mm

Cordulegaster trinacriae

Distribution map

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

The Italian Goldenring is endemic to Italy; it replaces the Common Goldenring roughly South of Rome and on Sicily. In terms of its abdominal markings, Cordulegaster trinacriae is virtually indistinguishable from C. boltonii. If anything, its golden rings are a bit narrower compared to those in C. boltonii. Also, again like boltonii, it has a yellow (rather than black) occipital triangle. The only distinguishing feature is the shape of the male's appendages, which are more deeply notched in trinacriae than in boltonii. In all Goldenring species, the female lays her eggs by dipping her abdomen repeatedly in wet mud (or moss, etc.) in a pneumatic drill fashion. For an overview of the key differences between the species of the boltonii-complex and those of the bidentata-complex, hover your mouse pointer here. [Please note that the male in the third photograph below (PhotoID: Dr677) is highly unusual in that he has only two cells in the anal triangle instead of the more usual five.]

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

1 / 20; PhotoID: Dr675 22/07/2016 11:40 Italia F8 1/400 180mm ISO200 Canon7D2 -Crop -Flash MF
2 / 20; PhotoID: Dr676 16/07/2014 13:57 Italia F8 1/250 180mm ISO200 Canon7D -Crop -Flash MF
3 / 20; PhotoID: Dr677 08/07/2013 09:44 Italia F8 1/750 180mm ISO200 Canon7D -Crop -Flash MF
4 / 20; PhotoID: Dr678 22/07/2016 12:20 Italia F7.1 1/1000 180mm ISO200 Canon7D2 -Crop -Flash MF
5 / 20; PhotoID: Dr679 26/06/2017 12:36 Italia F8 1/500 180mm ISO200 Canon7D2 -Crop -Flash MF
6 / 20; PhotoID: Dr680 29/07/2014 16:32 Italia F8 1/250 180mm ISO200 Canon7D -Crop -Flash MF
7 / 20; PhotoID: Dr681 02/07/2012 10:40 Italia F8 1/250 180mm ISO200 Canon7D -Crop -Flash MF
8 / 20; PhotoID: Dr682 02/07/2012 11:06 Italia F8 1/1000 180mm ISO400 Canon7D -Crop -Flash MF
9 / 20; PhotoID: Dr683 02/07/2012 11:06 Italia F8 1/800 180mm ISO400 Canon7D -Crop -Flash MF
10 / 20; PhotoID: Dr684 26/07/2016 11:12 Italia F8 1/640 180mm ISO200 Canon7D2 -Crop -Flash MF
11 / 20; PhotoID: Dr685 08/07/2009 10:28 Italia F8 1/125 180mm ISO100 Canon50D -Crop -Flash MF
12 / 20; PhotoID: Dr686 26/07/2016 13:42 Italia F8 1/320 180mm ISO200 Canon7D2 -Crop -Flash MF
13 / 20; PhotoID: Dr687 04/07/2012 09:20 Italia F8 1/250 180mm ISO200 Canon7D -Crop -Flash MF
14 / 20; PhotoID: Dr688 26/07/2016 11:03 Italia F8 1/200 180mm ISO200 Canon7D2 -Crop -Flash MF
15 / 20; PhotoID: Dr689 08/07/2009 10:32 Italia F8 1/100 180mm ISO100 Canon50D -Crop -Flash MF
16 / 20; PhotoID: Dr690 29/07/2015 16:01 Italia F8 1/400 180mm ISO200 Canon7D2 -Crop -Flash MF
17 / 20; PhotoID: Dr691 08/07/2012 13:20 Italia F9 1/200 180mm ISO200 Canon7D -Crop -Flash MF
18 / 20; PhotoID: Dr692 04/07/2012 09:47 Italia F8 1/400 180mm ISO200 Canon7D -Crop -Flash MF
19 / 20; PhotoID: Dr693 04/07/2012 10:28 Italia F8 1/250 180mm ISO200 Canon7D -Crop -Flash MF
20 / 20; PhotoID: Dr694 22/07/2016 14:26 Italia F8 1/500 180mm ISO200 Canon7D2 -Crop -Flash MF