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Onychogomphus forcipatus


Onychogomphus forcipatus
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: 2016-07-29
Categories: Insects
Camera: Sony Cybershot DSC HX200V
Exposure: f/5.0, 1/640 seconds
More Photo Info: [view]
Map: [view]
Photo Version: Original Version
Date Submitted: 2016-08-09 12:48
Viewed: 1313
Points: 26
[Note Guidelines] Photographer's Note
Class: Insecta
Order: Odonata
Family: Gomphidae
Genus: Onychogomphus
Species: O. forcipatus

Onychogomphus forcipatus, the Small Pincertail or 'Green-eyed Hook-tailed Dragonfly', is a species of 'dragonflies' belonging to the family Gomphidae.
This quite common and widespread 'dragonfly' is present in most of Europe. The adults grow up to 60 millimetres (2.4 in) long and can be encountered close to running water and lakes from June through September. Their life cycle lasts about 3-5 years.
The eyes of Onychogomphus forcipatus are widely separated and grey-to-green. The two black lines on the side of the thorax are relatively narrow and touch the midline. It has a yellow line on the 'vertex' and two cells above the anal triangle. The abdomed in males is fitted with three hooks of large size (anal appendages). 'Cercoids' may be dark and have a subterminal tooth. The base of the hindwing is angled in males and rounded in females.

Dimensioni: lunghezza: 45-50 mm, apertura alare 55-70 mm. Descrizione: specie molto particolare (in Italia può essere confusa solo con Onychogomphus uncatus) dalla colorazione giallo-nera con occhi blu-azzurri nella femmina, blu-verdi nel maschio. Quest'ultimo è facilmente riconoscibile per la forma a tenaglia dei cerci. La livrea ed i disegni del torace e addome sono abbastanza variabili e non sempre costituiscono un criterio affidabile per il riconoscimento della specie. Spesso sono comunque sufficienti per distinguerla dalla congenere O. uncatus che possiede torace con disegni neri più marcati e vertice dell'addome nero (giallo e nero in O. forcipatus). L'identificazione avviene con maggior sicurezza osservando, nel maschio, la forma delle appendici addominali (cerci) oppure il "triangolo anale" sull'ala posteriore composto da 3 celle anzichè 4 come in O. uncatus. Nella femmina, invece, il carattere di distinzione è rappresentato dalla presenza, dietro gli occhi, di due piccoli tubercoli gialli molto pronunciati. Distribuzione e habitat: diffusa in tutta la penisola (ad esclusione dell'Italia nord-orientale) con la sottospecie unguiculatus ed in Sicilia con la sottospecie O. forcipatus forcipatus. Frequenta principalmente le sponde rocciose dei corsi d'acqua ed i greti fluviali, raramente le acque ferme. Spesso la si osserva posata sui rami bassi dei cespugli o sui sassi. Il maschio, a riposo, assume una posizione tipica con addome leggermente piegato. Questa libellula è purtroppo minacciata causa inquinamento delle acque e sta divenendo sempre più rara. Periodo di attività: gli adulti volano da maggio a settembre. La larva si sviluppa in 3-5 anni riuscendo a superare i periodi di siccità infossandosi nel terreno. Spesso, durante lo sfarfallamento, la larva tiene parte del corpo in acqua.

marius-secan, njmv79, mesquens, summers, anel, pierrefonds, Hormon_Manyer has marked this note useful
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ThreadThread Starter Messages Updated
To Hotelcalifornia: ....lousat 1 08-10 12:47
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Critiques [Translate]

Ciao Luciano, favoloso faccia a faccia, fantastici occhioni blu, gran flashata, splendida la texture della ali, bravissimo, ciao Silvio

Hello Luciano,
Nice image with lovely details. This summer I have seen many Dragonflies in my region, but I have no much time to take pictures. As usual a very good shot. Colors and focus are the best.
Marius.

  • Great 
  • cirano Gold Star Critiquer/Gold Note Writer [C: 997 W: 0 N: 944] (13609)
  • [2016-08-10 2:13]

Excellent shot :)

Bravo Luciano,
How do you do that my friend???
No words to describe...absolutely amazing.
thousand points plus a thousand for the notes.
Regards,
Nelson

Hey Luciano,
It's an wonderful capture:
1. Memorable textures of the trunk;
2. Pin sharp insect head.
3. Very artistic black BG and not distracting frame.
Great one.
Raimundo

  • Great 
  • PeterZ Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 5137 W: 166 N: 13121] (49139)
  • [2016-08-10 11:50]

Hello Luciano,
Very nice macro taken from an attractive POV with a good sharp focus and beautiful colors. The lightning on trunk and dragonfly is gorgeous.
Regards,
Peter

  • Great 
  • summers (705)
  • [2016-08-10 11:51]

Just superb!
Geoff

hallo Luciano
very nice and sharpness composition with beautiful colours
thanks gr lou

Hello Luciano,
Everything look beautiful and very sharp. Even dark BG is perfect. But it's always nice to see a dragonfly from side view, in my test!!!"
Or I haven't captured such POV photograph yet, so don't know its impact.
Thanks for sharing,
Regards,
Srikumar

  • Great 
  • tuslaw Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2754 W: 282 N: 4931] (19883)
  • [2016-08-10 20:43]

Hello Luciano,
What an interesting and unique POV you have chosen. The faces of these insects always seem to have a smile on them:) Focus is sharp showing much detail and exposure is great. I really like the composition and dark BG. Great work!!
Ron
PS. Thanks for your help in finding the correct ID of my butterflies.

  • Great 
  • anel Gold Star Critiquer/Gold Note Writer [C: 3053 W: 3 N: 8715] (40574)
  • [2016-08-12 12:21]

Bonsoir Luciano,
Un très joli face à face!! La couleurs des yeux de la libellule est de grande beauté.
Bien vu, bien fait!
Bonne soirée
Anne

Bonjour Luciano,

Le sujet est bien cadré. La prise de vue permet de voir les détails de la libellule Onychogomphus forcipatus. L'image est claire et précise. Bonne journée.

Pierre

Ciao Luciano,
An exceptional image in your unmistakable style. Composition cannot even be more eye-catching, sharpness is perfect, the lights and the way how you used them is breathtaking. This photo must be seen to be believed! Hats off!
Merry Christmas (again), kind regards from Ireland, László

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