{"id":12784,"date":"2023-01-25T20:21:02","date_gmt":"2023-01-25T19:21:02","guid":{"rendered":"https:\/\/www.meslibellules.fr\/blog\/?page_id=12784"},"modified":"2024-08-07T09:31:05","modified_gmt":"2024-08-07T07:31:05","slug":"orthetrum-coerulescens","status":"publish","type":"page","link":"https:\/\/www.meslibellules.fr\/blog\/orthetrum-coerulescens\/","title":{"rendered":"Orthetrum coerulescens (Fabricius, 1798)"},"content":{"rendered":"\n
\"Orthetrum<\/a>
Orthetrum coerulescens m\u00e2le, Lugan (France-81), 08\/07\/2022<\/figcaption><\/figure>\n\n\n\n
Description – Identification<\/span><\/h5>\n\n\n\n

Page de pr\u00e9sentation de Orthetrum coerulescens, l’Orth\u00e9trum bleuissant.

Orthetrum coerulescens est le plus petit de son genre en France et mesure 36 \u00e0 45 mm ; ses yeux sont bleus, son front est brun<\/strong>, son thorax est \u00e9galement brun, parfois bleu<\/em> dans le sud de la France, et il porte une bande ant\u00e9hum\u00e9rale claire, qui peut dispara\u00eetre compl\u00e8tement avec l’\u00e2ge. Son abdomen jaune dor\u00e9 quand il est jeune, devient bleu en se couvrant d’une pulv\u00e9rulence bleut\u00e9e.
Les pt\u00e9rostigmas sont jaunes<\/strong> et longs<\/strong>, ses pattes sont brunes ou brun tr\u00e8s fonc\u00e9, parfois.

Orthetrum brunneum montre un thorax bleu, des pt\u00e9rostigmas plus courts et une face claire<\/em>, des pattes noires.
Orthetrum cancellatum exhibe des pt\u00e9rostigmas sombres et ses derniers segments sont sombres<\/em>.
Orthetrum albistylum, plus fin d’apparence, a aussi des pt\u00e9rostigmas sombres, et ses appendices anaux sont le plus souvent clairs.

Les femelles de l’Orth\u00e9trum bleuissant restent jaunes avec une bande ant\u00e9hum\u00e9rale bien visible, des traits noirs transversaux sur la ligne m\u00e9diane abdominale, peu ou pas de cellules d\u00e9doubl\u00e9es au-dessus de la nervure Radiale suppl\u00e9mentaire<\/a>.
La confusion se fait essentiellement avec les femelles O. brunneum dont elles peuvent \u00eatre difficiles \u00e0 s\u00e9parer : ces derni\u00e8res pr\u00e9sentent des points plut\u00f4t que des traits transversaux de chaque c\u00f4t\u00e9 de la ligne m\u00e9diane de l’abdomen, leur pt\u00e9rostigmas sont plus courts, elles ont d’assez nombreuses cellules d\u00e9doubl\u00e9es au-dessus de la nervure Radiale suppl\u00e9mentaire<\/a>.<\/p>\n\n\n\n

\"Orthetrum<\/a>
Orthetrum coerulescens femelle, Lugan (France-81), 10\/07\/2022<\/figcaption><\/figure>\n\n\n\n
Habitat – Biotope<\/span><\/h5>\n\n\n\n

On le rencontre au long des rivi\u00e8res, mais aussi des foss\u00e9s, des drains, dans ma r\u00e9gion, autour des argili\u00e8res, et les deux photos ci-dessus sont faites autour d’un \u00e9tang d’arrosage. Il se perche sur la v\u00e9g\u00e9tation, moins souvent au sol.<\/p>\n\n\n\n

Comportement – Biologie<\/span><\/h5>\n\n\n\n

Les m\u00e2les sont territoriaux et d\u00e9fendent une petite longueur de berge ou de rives, en chassant tout intrus. Quand ils sont au bord de l’eau, ils sont tr\u00e8s actifs et aux heures chaudes, ils sont rarement au repos, pos\u00e9s dans la v\u00e9g\u00e9tation. L’accouplement dure de quelques minutes \u00e0 une demi-heure. La femelle pond seule en frappant l’eau de son abdomen, utilisant les expansions ventrales de son 8\u00b0 segment.
La phase larvaire dure 1 ou 2 ans et comporte 10 \u00e0 16 stades successifs. <\/p>\n\n\n\n

P\u00e9riode de vol<\/span><\/h5>\n\n\n\n

On peut rencontrer Orthetrum coerulescens en France de mai \u00e0 octobre, avec un pic de mi-juin \u00e0 fin ao\u00fbt, ces dates \u00e9tant tr\u00e8s variables avec la m\u00e9t\u00e9o et l’altitude (il atteint plus de 2000 m dans les Pyr\u00e9n\u00e9es).<\/p>\n\n\n\n

\"Orthetrum<\/a>
Orthetrum coerulescens m\u00e2le, La Croix Fourreau (France-49), 25\/08\/2019<\/figcaption><\/figure>\n\n\n\n
Distribution g\u00e9ographique<\/span><\/h5>\n\n\n\n

En France, il est pr\u00e9sent dans tous les d\u00e9partements (sauf le Calvados…), avec une pr\u00e9pond\u00e9rance dans le sud. Il est peu commun dans mon<\/em> Maine-et-Loire.
On le trouve du Maghreb \u00e0 la Libye, au nord, il atteint l’Irlande, le sud de la Norv\u00e8ge, Su\u00e8de, et Finlande, \u00e0 l’est, il est commun en Turquie, en Iran, il atteint le Sina\u00ef et devient moins commun en Asie Centrale.
– Atlas dynamique des Odonates<\/a> –<\/p>\n\n\n\n

\u00c9tymologie<\/span><\/h5>\n\n\n\n

Orthetrum (1) vient de 2 mots grecs, orthos<\/em> signifiant droit<\/em> et etron<\/em>  -abdomen<\/em> -, ceci pour signifier que les c\u00f4t\u00e9s de l\u2019abdomen sont parall\u00e8les. Ce nom de genre cr\u00e9\u00e9 par Newman en 1833 a perdu sa pertinence avec la d\u00e9couverte de nouvelles esp\u00e8ces, mais le nom est rest\u00e9.
C\u0153rulescens<\/em>, \u00ab\u00a0devenant bleu\u00a0\u00bb \u2014 d\u00e9riv\u00e9 tardif du latin caeruleus, a, um<\/em> \u00ab\u00a0bleu\u00a0\u00bb \u2014 qualifie les changements de la couleur bleut\u00e9e de l’abdomen du m\u00e2le d\u00fb \u00e0 la pruinescence qui lui est propre (2).<\/p>\n\n\n\n

<\/div>\n\n\n\n
\n
\n
M\u00e2le immature<\/a><\/div>\n<\/div>\n\n\n\n
\n
M\u00e2le<\/a><\/div>\n<\/div>\n\n\n\n
\n
Femelle immature<\/a><\/div>\n<\/div>\n\n\n\n
\n
Femelle<\/a><\/div>\n<\/div>\n\n\n\n
\n
Accouplement<\/a><\/div>\n<\/div>\n\n\n\n
\n
Galerie<\/a><\/div>\n<\/div>\n\n\n\n
\n
O. coerulescens vs O. brunneum<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n
<\/div>\n\n\n\n

-1- The Naming of Australia\u2019s Dragonflies, Ian Endersby & Heinrich Fliedner, Busybird Publishing 2015
-2- Le Blog de Jean-Yves Cordier<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Description – Identification Page de pr\u00e9sentation de Orthetrum coerulescens, l’Orth\u00e9trum bleuissant. Orthetrum coerulescens est le plus petit de son genre en France et mesure 36 \u00e0 45 mm ; ses yeux sont bleus, son front est brun, son thorax est \u00e9galement brun, parfois bleu dans le sud de la France, et il porte une bande […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-12784","page","type-page","status-publish","hentry"],"yoast_head":"\nOrthetrum coerulescens - Mes Libellules<\/title>\n<meta name=\"description\" content=\"Orthetrum coerulescens, description, identification, taille, habitat, distribution g\u00e9ographique, \u00e9tymologie, lien vers d\u00e9tails\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.meslibellules.fr\/blog\/orthetrum-coerulescens\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Orthetrum coerulescens - Mes Libellules\" \/>\n<meta property=\"og:description\" content=\"Orthetrum coerulescens, description, identification, taille, habitat, distribution g\u00e9ographique, \u00e9tymologie, lien vers d\u00e9tails\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.meslibellules.fr\/blog\/orthetrum-coerulescens\/\" \/>\n<meta property=\"og:site_name\" content=\"Mes Libellules\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/benoit.guillon.96\/\" \/>\n<meta property=\"article:modified_time\" content=\"2024-08-07T07:31:05+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Orthetrum-coerulescens-accueil.webp\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.meslibellules.fr\\\/blog\\\/orthetrum-coerulescens\\\/\",\"url\":\"https:\\\/\\\/www.meslibellules.fr\\\/blog\\\/orthetrum-coerulescens\\\/\",\"name\":\"Orthetrum coerulescens - Mes Libellules\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.meslibellules.fr\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.meslibellules.fr\\\/blog\\\/orthetrum-coerulescens\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.meslibellules.fr\\\/blog\\\/orthetrum-coerulescens\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.meslibellules.fr\\\/blog\\\/wp-content\\\/uploads\\\/Orthetrum-coerulescens-accueil.webp\",\"datePublished\":\"2023-01-25T19:21:02+00:00\",\"dateModified\":\"2024-08-07T07:31:05+00:00\",\"description\":\"Orthetrum coerulescens, description, identification, taille, habitat, distribution g\u00e9ographique, \u00e9tymologie, lien vers d\u00e9tails\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.meslibellules.fr\\\/blog\\\/orthetrum-coerulescens\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.meslibellules.fr\\\/blog\\\/orthetrum-coerulescens\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/www.meslibellules.fr\\\/blog\\\/orthetrum-coerulescens\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.meslibellules.fr\\\/blog\\\/wp-content\\\/uploads\\\/Orthetrum-coerulescens-accueil.webp\",\"contentUrl\":\"https:\\\/\\\/www.meslibellules.fr\\\/blog\\\/wp-content\\\/uploads\\\/Orthetrum-coerulescens-accueil.webp\",\"width\":1920,\"height\":1204,\"caption\":\"Orthetrum coerulescens m\u00e2le, Lugan (France-81), 08\\\/07\\\/2022\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.meslibellules.fr\\\/blog\\\/orthetrum-coerulescens\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\\\/\\\/www.meslibellules.fr\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Orthetrum coerulescens (Fabricius, 1798)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.meslibellules.fr\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.meslibellules.fr\\\/blog\\\/\",\"name\":\"Mes Libellules\",\"description\":\"Pr\u00e9sentation des libellules rencontr\u00e9es dans le monde\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.meslibellules.fr\\\/blog\\\/#\\\/schema\\\/person\\\/9aa3586f9dd053fcf329f43b8b053c77\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.meslibellules.fr\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":[\"Person\",\"Organization\"],\"@id\":\"https:\\\/\\\/www.meslibellules.fr\\\/blog\\\/#\\\/schema\\\/person\\\/9aa3586f9dd053fcf329f43b8b053c77\",\"name\":\"Beno\u00eet Guillon\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/www.meslibellules.fr\\\/blog\\\/wp-content\\\/uploads\\\/cropped-avatar-150-pix.jpg\",\"url\":\"https:\\\/\\\/www.meslibellules.fr\\\/blog\\\/wp-content\\\/uploads\\\/cropped-avatar-150-pix.jpg\",\"contentUrl\":\"https:\\\/\\\/www.meslibellules.fr\\\/blog\\\/wp-content\\\/uploads\\\/cropped-avatar-150-pix.jpg\",\"width\":150,\"height\":137,\"caption\":\"Beno\u00eet Guillon\"},\"logo\":{\"@id\":\"https:\\\/\\\/www.meslibellules.fr\\\/blog\\\/wp-content\\\/uploads\\\/cropped-avatar-150-pix.jpg\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/benoit.guillon.96\\\/\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Orthetrum coerulescens - Mes Libellules","description":"Orthetrum coerulescens, description, identification, taille, habitat, distribution g\u00e9ographique, \u00e9tymologie, lien vers d\u00e9tails","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.meslibellules.fr\/blog\/orthetrum-coerulescens\/","og_locale":"fr_FR","og_type":"article","og_title":"Orthetrum coerulescens - Mes Libellules","og_description":"Orthetrum coerulescens, description, identification, taille, habitat, distribution g\u00e9ographique, \u00e9tymologie, lien vers d\u00e9tails","og_url":"https:\/\/www.meslibellules.fr\/blog\/orthetrum-coerulescens\/","og_site_name":"Mes Libellules","article_publisher":"https:\/\/www.facebook.com\/benoit.guillon.96\/","article_modified_time":"2024-08-07T07:31:05+00:00","og_image":[{"url":"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Orthetrum-coerulescens-accueil.webp","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_misc":{"Dur\u00e9e de lecture estim\u00e9e":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.meslibellules.fr\/blog\/orthetrum-coerulescens\/","url":"https:\/\/www.meslibellules.fr\/blog\/orthetrum-coerulescens\/","name":"Orthetrum coerulescens - Mes Libellules","isPartOf":{"@id":"https:\/\/www.meslibellules.fr\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.meslibellules.fr\/blog\/orthetrum-coerulescens\/#primaryimage"},"image":{"@id":"https:\/\/www.meslibellules.fr\/blog\/orthetrum-coerulescens\/#primaryimage"},"thumbnailUrl":"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Orthetrum-coerulescens-accueil.webp","datePublished":"2023-01-25T19:21:02+00:00","dateModified":"2024-08-07T07:31:05+00:00","description":"Orthetrum coerulescens, description, identification, taille, habitat, distribution g\u00e9ographique, \u00e9tymologie, lien vers d\u00e9tails","breadcrumb":{"@id":"https:\/\/www.meslibellules.fr\/blog\/orthetrum-coerulescens\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.meslibellules.fr\/blog\/orthetrum-coerulescens\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.meslibellules.fr\/blog\/orthetrum-coerulescens\/#primaryimage","url":"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Orthetrum-coerulescens-accueil.webp","contentUrl":"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Orthetrum-coerulescens-accueil.webp","width":1920,"height":1204,"caption":"Orthetrum coerulescens m\u00e2le, Lugan (France-81), 08\/07\/2022"},{"@type":"BreadcrumbList","@id":"https:\/\/www.meslibellules.fr\/blog\/orthetrum-coerulescens\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Accueil","item":"https:\/\/www.meslibellules.fr\/blog\/"},{"@type":"ListItem","position":2,"name":"Orthetrum coerulescens (Fabricius, 1798)"}]},{"@type":"WebSite","@id":"https:\/\/www.meslibellules.fr\/blog\/#website","url":"https:\/\/www.meslibellules.fr\/blog\/","name":"Mes Libellules","description":"Pr\u00e9sentation des libellules rencontr\u00e9es dans le monde","publisher":{"@id":"https:\/\/www.meslibellules.fr\/blog\/#\/schema\/person\/9aa3586f9dd053fcf329f43b8b053c77"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.meslibellules.fr\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":["Person","Organization"],"@id":"https:\/\/www.meslibellules.fr\/blog\/#\/schema\/person\/9aa3586f9dd053fcf329f43b8b053c77","name":"Beno\u00eet Guillon","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/cropped-avatar-150-pix.jpg","url":"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/cropped-avatar-150-pix.jpg","contentUrl":"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/cropped-avatar-150-pix.jpg","width":150,"height":137,"caption":"Beno\u00eet Guillon"},"logo":{"@id":"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/cropped-avatar-150-pix.jpg"},"sameAs":["https:\/\/www.facebook.com\/benoit.guillon.96\/"]}]}},"_links":{"self":[{"href":"https:\/\/www.meslibellules.fr\/blog\/wp-json\/wp\/v2\/pages\/12784","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.meslibellules.fr\/blog\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.meslibellules.fr\/blog\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.meslibellules.fr\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meslibellules.fr\/blog\/wp-json\/wp\/v2\/comments?post=12784"}],"version-history":[{"count":0,"href":"https:\/\/www.meslibellules.fr\/blog\/wp-json\/wp\/v2\/pages\/12784\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.meslibellules.fr\/blog\/wp-json\/wp\/v2\/media?parent=12784"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}