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Onychogomphus uncatus

Onychogomphus uncatus
Photo Information
Copyright: Luciano Gollini (lousat) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 6595 W: 89 N: 15659] (65489)
Genre: Animals
Medium: Color
Date Taken: 2019-07-17
Categories: Insects
Camera: Sony Cybershot DSC HX200V
Map: [view]
Photo Version: Original Version
Date Submitted: 2019-07-19 13:00
Viewed: 227
Points: 12
[Note Guidelines] Photographer's Note
Class: Insecta
Order: Odonata
Family: Gomphidae
Genus: Onychogomphus
Species:O. uncatus

This is a female of a Onychogomphus uncatus, the large pincertail or blue-eyed hook-tailed dragonfly, a species of dragonflies belonging to the family Gomphidae.
This species is present in Belgium, France, Germany, Italy, Spain, Portugal and Switzerland.
These dragonflies can be encountered close to running water and lakes.
The adults of Onychogomphus uncatusgrow up to 65 millimetres (2.6 in) long. The eyes are widely separated and bright-blue or gray-blue eyes, never green. The front black line on the side of the thorax does not touch the midline. The yellow collar at the front of the thorax is interrupted by a black bar. It has four cells on the anal triangle of the rear wing, but no yellow line on the 'vertex'. Cercoids are always yellow.
This dragonfly is bigger and rarer than the small pincertail (Onychogomphus forcipatus), but they are rather similar. The two species can be distinguished on the basis of the shape and extension of the black markings, especially on the thorax and on the last abdominal segments.
Adults of these dragonflies can be found from mid April through late August. Their life cycle lasts about three years.

mamcg, marine-coeur, pierrefonds has marked this note useful
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Critiques [Translate]

Ciao Luciano, macro favolosa di questa bellissima libellula, impressionanti i dettagli di occhi e ali, magnifici colori e splendida nitidezza, bravissimo, ciao Silvio

  • Great 
  • mamcg Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 333 W: 13 N: 91] (9843)
  • [2019-07-20 2:05]

Perfect lighting and nice depth,
well exposed and composed,

What a great landing of this performer... by great details and natural day lights well done again LUCIANO GOLLINI

  • Great 
  • periko Gold Star Critiquer/Gold Note Writer [C: 70 W: 2 N: 145] (1487)
  • [2019-07-20 10:45]

Hi Luciano
Amazing capture with fine details.
I have seen similar ones in my region.


  • Great 
  • Cobo Gold Star Critiquer/Gold Note Writer [C: 236 W: 1 N: 535] (5799)
  • [2019-07-21 0:30]

Beautiful picture Luciano and beautiful animal.
Muchos saludos.

Bonjour Luciano,

La végétation aide au cadrage de l'insecte. La prise de vue permet de voir les détails de la libellule l'onychogomphe à pinces. La lumière met en valeur les couleurs de l'image. Bonne journée.


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