{"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":"2026-07-19T08:26:35","modified_gmt":"2026-07-19T06:26:35","slug":"orthetrum-coerulescens","status":"publish","type":"page","link":"https:\/\/www.meslibellules.fr\/blog\/orthetrum-coerulescens\/","title":{"rendered":"Orthetrum coerulescens (Fabricius, 1798)"},"content":{"rendered":"\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Orthetrum-coerulescens-accueil.webp\"><img decoding=\"async\" width=\"1920\" height=\"1204\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Orthetrum-coerulescens-accueil.webp\" alt=\"Orthetrum coerulescens m\u00e2le, Lugan (France-81), 08\/07\/2022\" class=\"wp-image-12785 lazyload\" style=\"--smush-placeholder-width: 1920px; --smush-placeholder-aspect-ratio: 1920\/1204;width:497px;height:311px\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Orthetrum-coerulescens-accueil.webp 1920w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Orthetrum-coerulescens-accueil-768x482.webp 768w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Orthetrum-coerulescens-accueil-1536x963.webp 1536w\" data-sizes=\"(max-width: 1920px) 100vw, 1920px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Orthetrum coerulescens m\u00e2le, Lugan (France-81), 08\/07\/2022<\/figcaption><\/figure>\n\n\n\n<h5><span style=\"text-decoration: underline;\">Description - Identification<\/span><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Page de pr\u00e9sentation de Orthetrum coerulescens, l'Orth\u00e9trum bleuissant.<br><br>Orthetrum coerulescens est le plus petit de son genre en France et mesure 36 \u00e0 45 mm ; ses yeux sont bleus, <strong>son front est brun<\/strong>, son thorax est \u00e9galement brun, <em>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 <a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Orthetrum-coerulescens-male-emergent-1.webp\">abdomen jaune dor\u00e9<\/a> quand il est jeune devient bleu en se couvrant d'une pulv\u00e9rulence bleut\u00e9e.<br>Les <strong>pt\u00e9rostigmas sont jaunes<\/strong> <strong>et longs<\/strong>, ses pattes sont brunes ou brun tr\u00e8s fonc\u00e9, parfois.<br><br>Orthetrum brunneum montre un thorax bleu, des pt\u00e9rostigmas plus courts et <em>une face claire<\/em>, des pattes noires.<br>Orthetrum cancellatum exhibe des pt\u00e9rostigmas sombres et <em>ses derniers segments sont sombres<\/em>.<br>Orthetrum albistylum, plus fin d'apparence, a aussi des pt\u00e9rostigmas sombres, et ses appendices anaux sont le plus souvent clairs.<br><br>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 <a href=\"http:\/\/www.meslibellules.fr\/pagesweb\/libellulidae\/orthetrum\/brunneum\/orthetrum-brunneum-femelle-3\/comparaison-ailes-femelles-orthetrum-brunneum-coerulescens-big.jpg\">cellules d\u00e9doubl\u00e9es au-dessus de la nervure Radiale suppl\u00e9mentaire<\/a>.<br>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, leurs pt\u00e9rostigmas sont plus courts, elles ont d'assez <a href=\"http:\/\/www.meslibellules.fr\/pagesweb\/libellulidae\/orthetrum\/brunneum\/orthetrum-brunneum-femelle-3\/comparaison-ailes-femelles-orthetrum-brunneum-coerulescens-big.jpg\">nombreuses cellules d\u00e9doubl\u00e9es au-dessus de la nervure Radiale suppl\u00e9mentaire<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Orthetrum-coerulescens-femelle-accueil.webp\"><img decoding=\"async\" width=\"1531\" height=\"1204\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Orthetrum-coerulescens-femelle-accueil.webp\" alt=\"Orthetrum coerulescens femelle, Lugan (France-81), 10\/07\/2022\" class=\"wp-image-12789 lazyload\" style=\"--smush-placeholder-width: 1531px; --smush-placeholder-aspect-ratio: 1531\/1204;width:455px;height:357px\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Orthetrum-coerulescens-femelle-accueil.webp 1531w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Orthetrum-coerulescens-femelle-accueil-768x604.webp 768w\" data-sizes=\"(max-width: 1531px) 100vw, 1531px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Orthetrum coerulescens femelle, Lugan (France-81), 10\/07\/2022<\/figcaption><\/figure>\n\n\n\n<h5><span style=\"text-decoration: underline;\">Habitat - Biotope<\/span><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">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<h5><span style=\"text-decoration: underline;\">Comportement - Biologie<\/span><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">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.<br>La phase larvaire dure 1 ou 2 ans et comporte 10 \u00e0 16 stades successifs. <\/p>\n\n\n\n<h5><span style=\"text-decoration: underline;\">P\u00e9riode de vol<\/span><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">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<figure class=\"wp-block-image aligncenter size-full is-resized\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Orthetrum-coerulescens-male-accueil.webp\"><img decoding=\"async\" width=\"1675\" height=\"1004\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Orthetrum-coerulescens-male-accueil.webp\" alt=\"Orthetrum coerulescens m\u00e2le, La Croix Fourreau (France-49), 25\/08\/2019\" class=\"wp-image-12799 lazyload\" style=\"--smush-placeholder-width: 1675px; --smush-placeholder-aspect-ratio: 1675\/1004;width:513px;height:307px\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Orthetrum-coerulescens-male-accueil.webp 1675w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Orthetrum-coerulescens-male-accueil-768x460.webp 768w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Orthetrum-coerulescens-male-accueil-1536x921.webp 1536w\" data-sizes=\"(max-width: 1675px) 100vw, 1675px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Orthetrum coerulescens m\u00e2le, La Croix Fourreau (France-49), 25\/08\/2019<\/figcaption><\/figure>\n\n\n\n<h5><span style=\"text-decoration: underline;\">Distribution g\u00e9ographique<\/span><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">En France, il est pr\u00e9sent dans tous les d\u00e9partements (sauf le Calvados\u2026), avec une pr\u00e9pond\u00e9rance dans le sud. Il est peu commun dans <em>mon<\/em> Maine-et-Loire. <br>On le trouve du Maghreb \u00e0 la Libye, au nord, il atteint l'Irlande, le sud de la Norv\u00e8ge, la Su\u00e8de et la Finlande, \u00e0 l'est, il est commun en Turquie, en Iran, il atteint le Sina\u00ef et devient moins commun en Asie centrale.<br>- <a href=\"https:\/\/atlas-odonates.insectes.org\/odonates-de-france\/orthetrum-coerulescens\">Atlas dynamique des Odonates<\/a> -<\/p>\n\n\n\n<h3><span style=\"text-decoration: underline;\"><span style=\"font-size: 14pt;\">\u00c9tymologie Orthetrum coerulescens<\/span><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Orthetrum<\/strong> (1) vient de 2 mots grecs, <em>orthos<\/em> signifiant <em>droit<\/em> et\u00a0<em>etron<\/em>\u00a0\u2013 abdomen \u2013, 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.<br><em><strong>C\u0153rulescens<\/strong><\/em>,\u00a0\"devenant bleu\" \u2014 d\u00e9riv\u00e9 tardif du latin\u00a0<em>caeruleus, a, um<\/em>\u00a0\"bleu\" \u2014 qualifie les changements de la couleur bleut\u00e9e de l'abdomen du m\u00e2le dus \u00e0 la pruinescence qui lui est propre (2).<\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-group is-layout-flex wp-block-group-is-layout-flex\">\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"http:\/\/www.meslibellules.fr\/pagesweb\/libellulidae\/orthetrum\/coerulescens\/orthetrum-coerulescens-male-jeune-1.php\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\">M\u00e2le immature<\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"http:\/\/www.meslibellules.fr\/pagesweb\/libellulidae\/orthetrum\/coerulescens\/coerulescens_male1.php\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\">M\u00e2le<\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.meslibellules.fr\/blog\/2021\/01\/25\/orthetrum-coerulescens-femelle-immature\/\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\">Femelle immature<\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"http:\/\/www.meslibellules.fr\/pagesweb\/libellulidae\/orthetrum\/coerulescens\/coerulescens_femelle1.php\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\">Femelle<\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"http:\/\/www.meslibellules.fr\/pagesweb\/libellulidae\/orthetrum\/coerulescens\/coerulescens_accoup1.php\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\">Accouplement<\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.meslibellules.fr\/blog\/2021\/02\/01\/orthetrum-coerulescens-galerie\/\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\">Galerie<\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.meslibellules.fr\/blog\/2024\/08\/07\/comparer-orthetrum-coerulescens-et-orthetrum-brunneum\/\">O. coerulescens vs O. brunneum<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">-1- The Naming of Australia\u2019s Dragonflies, Ian Endersby &amp; Heinrich Fliedner, Busybird Publishing 2015<br>-2- <a href=\"https:\/\/www.lavieb-aile.com\/2019\/01\/zoonymie-des-odonates-les-noms-de-l-orthetrum-coerulescens.html\">Le Blog de Jean-Yves Cordier<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>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 [&hellip;]<\/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":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - 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