{"id":29348,"date":"2026-05-17T13:02:27","date_gmt":"2026-05-17T11:02:27","guid":{"rendered":"https:\/\/www.meslibellules.fr\/blog\/?p=29348"},"modified":"2026-05-17T13:03:40","modified_gmt":"2026-05-17T11:03:40","slug":"coenagrion-puella-ou-pulchellum","status":"publish","type":"post","link":"https:\/\/www.meslibellules.fr\/blog\/2026\/05\/17\/coenagrion-puella-ou-pulchellum\/","title":{"rendered":"Coenagrion puella ou pulchellum ?"},"content":{"rendered":"\n<p>Au d\u00e9tour d&rsquo;une identification sur iNaturalist, j&rsquo;ai appris par hasard que depuis 2011 nos amis hollandais, tr\u00e8s actifs en odonatologie, utilisaient un \u00ab\u00a0crit\u00e8re\u00a0\u00bb de coloration quand le pronotum n&rsquo;\u00e9tait pas visible correctement pour d\u00e9terminer les femelles Coenagrion puella ou Coenagrion pulchellum.<br>C&rsquo;est une vraie surprise que de d\u00e9couvrir que ces astuces de passionn\u00e9s ne franchissent pas les fronti\u00e8res et qu&rsquo;il nous a fallu quinze ans pour y acc\u00e9der.<br><br><a href=\"https:\/\/www.inaturalist.org\/people\/es_faz\" target=\"_blank\" rel=\"noreferrer noopener\">es_faz<\/a> sur iNaturalist, ou <a href=\"https:\/\/www.facebook.com\/macromia.puntnl\" target=\"_blank\" rel=\"noreferrer noopener\">Faz Enes<\/a> sur Facebook, auteur du site <a href=\"https:\/\/www.macromia.nl\/\" target=\"_blank\" rel=\"noreferrer noopener\">Macromia.nl<\/a>, nous r\u00e9v\u00e8le au hasard d&rsquo;une identification, ce 16 mai 2026, que Weia Reinboud, coautrice de \u00ab\u00a0<strong><a href=\"https:\/\/cdn.webshopapp.com\/shops\/39297\/files\/329419874\/veldgids-libellen.jpg\">Veldgids Libellen<\/a><\/strong>\u00a0\u00bb (<em>Guide de terrain des libellules<\/em> (Europe du Nord et Centrale)), a post\u00e9 un collage de puella vs pulchellum sur le forum <a href=\"https:\/\/forum.waarneming.nl\/index.php\/topic,141600.30.html\" target=\"_blank\" rel=\"noreferrer noopener\">Waarneming.nl<\/a>, qui met en \u00e9vidence un nouveau \u00ab\u00a0crit\u00e8re\u00a0\u00bb ; le mot est sans doute un peu fort mais ce d\u00e9tail est bien utile. D&rsquo;ailleurs, ce \u00ab\u00a0crit\u00e8re\u00a0\u00bb fonctionne aussi pour les m\u00e2les, mais on a le plus souvent d&rsquo;autres solutions pour les s\u00e9parer.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Coenagrion-pulchellum-vs-puella-1.webp\"><img decoding=\"async\" width=\"1808\" height=\"847\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Coenagrion-pulchellum-vs-puella-1.webp\" alt=\"Femelle Coenagrion pulchellum vs puella\" class=\"wp-image-29352 lazyload\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Coenagrion-pulchellum-vs-puella-1.webp 1808w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Coenagrion-pulchellum-vs-puella-1-768x360.webp 768w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Coenagrion-pulchellum-vs-puella-1-1536x720.webp 1536w\" data-sizes=\"(max-width: 1808px) 100vw, 1808px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1808px; --smush-placeholder-aspect-ratio: 1808\/847;\" \/><\/a><figcaption class=\"wp-element-caption\">Femelle Coenagrion pulchellum vs Coenagrion puella<\/figcaption><\/figure>\n\n\n\n<p><strong>Il s&rsquo;agit donc d&rsquo;une expansion plut\u00f4t rectangulaire<\/strong> qui s&rsquo;\u00e9chappe vers le bas de la partie ant\u00e9rieure de la bande sombre couvrant la suture hum\u00e9rale, juste en arri\u00e8re de l&rsquo;infra\u00e9pisterne m\u00e9sothoracique (voir ce <a href=\"https:\/\/www.meslibellules.fr\/thematique\/anat\/schemanat\/robert7\/planche7-big.jpg\">dessin <\/a>de Robert (1958) qui pr\u00e9cise les termes anatomiques). Pour Coenagrion pulchellum, cette <strong>expansion est prononc\u00e9e<\/strong>, pas seulement sous forme d&rsquo;un trait ou deux, ou d&rsquo;une petite bosse arrondie.<br>Elle est toujours <strong>nettement plus faible ou m\u00eame absente<\/strong> pour Coenagrion puella, comme <a href=\"https:\/\/www.meslibellules.fr\/images\/coenagrionidae\/coenagrion\/puella_femelle1\/femelle-big.jpg\">ici<\/a>, ou <a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Coenagrion-puella-accueil-femelle-verte-1.webp\">l\u00e0<\/a>.<br><br>Bien s\u00fbr cette expansion est pr\u00e9sente pour d&rsquo;autres esp\u00e8ces de Coenagrion comme ornatum, armatum, hylas, johansonni, mais il est rare de devoir les s\u00e9parer de C. puella ou pulchellum.<br><br>Il est \u00e0 noter que C. mercuriale ne semble jamais pr\u00e9senter cette expansion et qu&rsquo;elle s&rsquo;av\u00e8re (si pr\u00e9sente sur le sujet C. puella examin\u00e9) comme un moyen d\u00e9tourn\u00e9 de s\u00e9parer les deux esp\u00e8ces, quand le pronotum n&rsquo;est pas visible.<\/p>\n\n\n\n<div style=\"height:67px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>Paul-Andr\u00e9 Robert, 1958<\/strong> &#8211; Les Libellules, Delachaux et Niestl\u00e9.<\/p>\n\n\n\n<div style=\"height:31px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-buttons is-vertical is-layout-flex wp-container-core-buttons-is-layout-fe9cc265 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\/wp-content\/uploads\/ceriagrion-tenellum-femelle-6.webp\">Accueil Coenagrion pulchellum<\/a><\/div>\n\n\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.meslibellules.fr\/blog\/coenagrion-puella\/\">Accueil Coenagrion puella<\/a><\/div>\n\n\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.meslibellules.fr\/blog\/\">Accueil<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Au d\u00e9tour d&rsquo;une identification sur iNaturalist, j&rsquo;ai appris par hasard que depuis 2011 nos amis hollandais, tr\u00e8s actifs en odonatologie, utilisaient un \u00ab\u00a0crit\u00e8re\u00a0\u00bb de coloration quand le pronotum n&rsquo;\u00e9tait pas visible correctement pour d\u00e9terminer les femelles Coenagrion puella ou Coenagrion pulchellum.C&rsquo;est une vraie surprise que de d\u00e9couvrir que ces astuces de passionn\u00e9s ne franchissent pas [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"image","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":""},"categories":[343,457,60,55],"tags":[],"class_list":["post-29348","post","type-post","status-publish","format-image","hentry","category-coenagrion-mercuriale","category-coenagrion-puella","category-coenagrionidae-france","category-france","post_format-post-format-image"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Coenagrion puella ou Coenagrion pulchellum - Mes Libellules<\/title>\n<meta name=\"description\" content=\"Coenagrion puella ou Coenagrion pulchellum femelle ; 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