<< Previous Next >>

Crocothemis erythrea

Crocothemis erythrea
著作権: philippe hornus (amanengone) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 188 W: 54 N: 412] (2113)
ジャンル: Animals
メディア: カラー
撮影した年: 2015-08-12
カテゴリー: Insects
カメラ: Olympus E 30
Exposure: f/13.0, 1/250 seconds
More Photo Info: [view]
Photo Version: Original Version
アップロードした日: 2016-12-27 15:52
ページビュー: 1516
ポイント: 4
[Note Guidelines] アーティストからのコメント

Crocothemis erythraea ((Brullテゥ, 1832)

Phylogenetic classification

Root / Cellular organisms / Eukaryota / Unikonta / / Amorphea / / Obazoa / Opisthokonta / Holozoa / Filozoa / Apoikozoa / Animalia / Chonaobionta / Metazoa/ Eumetazoa / Bilateria/ Nephrozoa / Protostomia / Ecdysozoa / Panarthropoda / Tactopoda / Euarthropoda / Mandibulata / Pancrustacea / Hexapoda / Ectognatha / Insecta / Dicondylia / Pterygota/ Palaeoptera / Odonatoptera / Odonata / Epiprocta / Anisoptera / Libelluloidea / Libellulidae / Sympetrinae / Crocothemis / Crocothemis erythraea

Brief description

Medium-sized dragonfly (30 to 45 mm) with broad, flat abdomen. The wings are hyaline, with an amber spot on the basal part of the hind wings.

The entire body and the head of the adults are bright red for the males. The females and the immatures are of fawn colour. The thorax of the females carries a light strip (generally white) in the median position and two left and right, light-coloured lateral bands. Absence of dark spots on the head, thorax and legs.

The characters "amber spots of the hind wings" and "absence of dark spots" conjugated together make it possible to differentiate the genus Crocothemis from the other genera of Libellulidae.

The copy presented here makes it possible to fully appreciate the design of the anterior and posterior wings (see the "Guide to the Dragonflies of France and Europe - Delachaux and Niestlテゥ editor for the precise description of the wings of dragonflies). Note, in particular, the additional radial, surmounted by a row of cells, as well as the enlarged discoidal field of the anterior wing. Presence of a pterostigma of fawn colour in the anterior side part of each of the four wings. Note also the presence of an amber spot in the anterior internal position of each of the two posterior wings.

Take note on the 窶徼otem窶 position of the abdomen on the insect.


This insect is endemic to humid Mediterranean zones, in stagnant waters, mostly brackish (rice fields, pools of water ...). The specimen presented was observed in the Pont de Gau ornithological reserve, where stagnant lagoon waters are very present (as well as many birds).


窶「 Links

o Crocothemis erythrea in Wikipedia
o Fauna Europaea 窶 Fauna Database supported by the European Commission
o The IUCN Red List of Threatened Sepcies
o Musテゥum national d窶僣istoire naturelle [Ed]. 2003-2016. Inventaire National du Patrimoine Naturel
o Dragonflies of France and elsewhere
o Sociテゥtテゥ Franテァaise d'Odonatologie
o Taxonomy & Systematics 窶 Database
o Technique de prise de vue ultra rapide 窶 Les meilleures prises de vue jamais rテゥalisテゥes
o Quelques milliers de photo somptueuses + tout sur les odonates

窶「 Books

o Guide des libellules de France et d窶僞urope 窶 K. D.B. Dijkstra / R.Lewingston 窶 テ嬰itions Delachaux et Niestlテゥ K. D.B. Dijkstra / R.Lewingston
o Field Guide to the Dragonflies of Britain and Europe 窶 K. D.B. Dijkstra / R.Lewingston 窶 British Wildlife Publishing
o La Garrigue grandeur nature 窶 Jean-Marie Renault 窶 Les Crテゥation du Pテゥlican / Vilo
o Prテゥcis de Sciences Biologiques - Zoologie / Invertテゥbrテゥs 窶 P.P.Grassテゥ, R.A.Poisson et O.Tuzet 窶 Masson et Compagnie
o Classification phylogテゥnテゥtique du vivant 窶 G.Lecointre et H.Le Guyader 窶 Tomes 1 et 2 窶 Belin テゥditeur
o L窶僞ncyclopテゥdie des animaux 窶 Jenni Bruce, Kareen MacGhee, Luba Vangelova, Richard Vogt 窶 University of California Press.
o Le monde du vivant 窶 Traitテゥ de biologie 窶 W.K.Purves, G.H.Horians, H.C.Heller. 窶 Sciences Flammarion et Sinauer Associates Incorporated 窶 Massachusetts.


窶「 Date of shooting 12/08/2015 13:35:47
窶「 Place of shooting Rテゥserve de biodiversitテゥ 窶 Domaine de la Palissade - France
窶「 Latitude 43.37587 N
窶「 Longitude 04.81053 E

窶「 Camera

o Objectif ZUIKO MinFocalLength 40 MaxFocalLength 150 Aperture 1: 2,8 - 3,5

窶「 Picture Specification窶冱

o ImageWidth 4640
o ImageLength 3472
o BitsPerSample 16
o Compression Uncompressed
o Orientation Horizontal

窶「 Shooting condition窶冱

o Light source Auto
o Metering mode Multi segment
o Picture mode Natural
o Exposure mode Aperture priority
o Focus mode Manual
o Focus process AF used
o Aperture f/13
o ExposureTime 1/250
o ISO Speed Rating 200
o FocalLength 150
o White Balance Temp Auto
o Noise Reduction 0
o Shading Compensation off
o Contrast normal
o Saturation normal
o Sharpness normal
o Mode image Natural

Raw treatement

窶「 Raw treatment and many other interesting topics from Cambridge University

窶「 Developpment of the raw file Olympus (*.orf) with DxO OpticsPro 11

窶「 Colour

o White Balance Temperature 4852 K 窶 Teinte -3
o Colour窶冱 Accentuation vibrance 30 saturation 0
o Colour窶冱 rebdering Referenced camera - Intensity 100 窶 Saturated colours protection 窶 20
o TSL none

窶「 Light

o Compensation exposition none
o DxO smart lighting none
o Tonalitテゥ sテゥlective -5, 2 -5 , -5
o DxO clear view 50
o Contraste 0, 30, 0
o Courbe des tons none
o Vignetage Auto, basテゥ sur module optique dテゥcelテゥ 窶 Intensitテゥ 100 窶 Prテゥservation 50

窶「 Details

o Noise reduction prime luminance 40 窶 chrominance 100 窶 Basse frテゥquence 75 窶
Pixel Morts 24
o Nettetテゥ de l窶冩ptique Globale 0.00 窶 Dテゥtails 50 窶 Bokeh 50
o Aberration chromatique Auto 窶 Latテゥrales 窶 Intensitテゥ 100 窶 Taille 6 窶 Franges violettes OK
o Masque de nettetテゥ nothing

窶「 Recadrage

o Horizon 32.75ツー
o Recadrage Manuel, Ratio 4/3
o Recroping area of 1943 x 1455 px off 4608 x 3456 px

Post treatment

窶「 Tif file edition corel paintshop pro
窶「 Sharpness improvement
窶「 Improvement of the contrast
窶「 Re sizing compatible with Treknature (max 800x800 窶 maximum size 300K)
窶「 Publication jpg 窶 compression mode : normal - intensity 10 窶 mode YCbCr 1x1 1x1 1x1

Only registered TrekNature members may rate photo notes.
Add Critique [Critiquing Guidelines] 

Critiques [Translate]

  • Great 
  • tuslaw Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2732 W: 280 N: 4911] (19842)
  • [2016-12-28 19:22]

Hello Philippe,
Although the BG appears quite busy due to where it had landed, the dragonfly itself is flawless. Awesome focus and clarity with beautiful natural color tones. A fine looking specimen perfectly displayed. Great job!!

hello Philippe
une magnifique capture de Libellule, bonne nettetテゥ, bon rendu des ailes et de la transparence.

Calibration Check