{"id":4928,"date":"2020-02-27T19:49:05","date_gmt":"2020-02-27T18:49:05","guid":{"rendered":"http:\/\/www.meslibellules.fr\/blog\/?p=4928"},"modified":"2025-12-29T18:13:03","modified_gmt":"2025-12-29T17:13:03","slug":"ischnura-senegalensis","status":"publish","type":"post","link":"https:\/\/www.meslibellules.fr\/blog\/2020\/02\/27\/ischnura-senegalensis\/","title":{"rendered":"Namibie &#8211; Ischnura senegalensis (Rambur, 1842)"},"content":{"rendered":"\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/ischnura-senegalensis-accouplement.jpg\"><img decoding=\"async\" width=\"1238\" height=\"884\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/ischnura-senegalensis-accouplement.jpg\" alt=\"Ischnura senegalensis accouplement, Katima Mulilo, 17\/02\/2020\" class=\"wp-image-4922 lazyload\" style=\"--smush-placeholder-width: 1238px; --smush-placeholder-aspect-ratio: 1238\/884;width:500px\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/ischnura-senegalensis-accouplement.jpg 1238w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/ischnura-senegalensis-accouplement-768x548.jpg 768w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/ischnura-senegalensis-accouplement-1200x857.jpg 1200w\" data-sizes=\"(max-width: 1238px) 100vw, 1238px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Ischnura senegalensis accouplement, Katima Mulilo, 17\/02\/2020<\/figcaption><\/figure>\n\n\n\n<p style=\"font-size:15px\">La Namibie est le 11\u00b0 pays o\u00f9 je rencontre Ischnura senegalensis et je n&rsquo;ai pas vraiment cherch\u00e9 \u00e0 faire des efforts pour le prendre en photo, d&rsquo;autant que nous l&rsquo;avons rencontr\u00e9 presque tous les jours : il est pr\u00e9sent depuis l&rsquo;Afrique du Sud jusqu&rsquo;en Mauritanie \u00e0 l&rsquo;ouest et \u00e0 l&rsquo;est jusqu&rsquo;au Japon et \u00e0 la Mongolie \u00e0 travers l&rsquo;Asie centrale et tropicale, et \u00e0 travers l&rsquo;Indon\u00e9sie jusqu&rsquo;\u00e0 la Papouasie-Nouvelle-Guin\u00e9e ! Ce qui explique qu&rsquo;on lui donne diff\u00e9rents noms : Marsh Bluetail, Ubiquitous Bluetail, African Bluetail, Golden Dartlet &#8230;<br><a href=\"https:\/\/www.iucnredlist.org\/species\/59897\/75436136\">IUCN Red List<\/a><\/p>\n\n\n\n<p style=\"font-size:15px\">Les femelles immatures sont cependant toujours spectaculaires.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/ischnura-senegalensis-femelle-2-1.jpg\"><img decoding=\"async\" width=\"1482\" height=\"884\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/ischnura-senegalensis-femelle-2-1.jpg\" alt=\"Ischnura senegalensis accouplement, Katima Mulilo, 17\/02\/2020\" class=\"wp-image-4924 lazyload\" style=\"--smush-placeholder-width: 1482px; --smush-placeholder-aspect-ratio: 1482\/884;width:500px\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/ischnura-senegalensis-femelle-2-1.jpg 1482w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/ischnura-senegalensis-femelle-2-1-768x458.jpg 768w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/ischnura-senegalensis-femelle-2-1-1200x716.jpg 1200w\" data-sizes=\"(max-width: 1482px) 100vw, 1482px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Ischnura senegalensis femelle immature, Katima Mulilo, 17\/02\/2020<\/figcaption><\/figure>\n\n\n\n<p style=\"font-size:15px\">Et si je mets cette seconde femelle, c&rsquo;est qu&rsquo;elle m&rsquo;a jou\u00e9 un tour que j&rsquo;expliquerai quand j&rsquo;aurai mis une autre esp\u00e8ce sur le site, une esp\u00e8ce que j&rsquo;ai confondue avec cette femelle&nbsp;:<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/ischnura-senegalensis-femelle.jpg\"><img decoding=\"async\" width=\"1390\" height=\"1004\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/ischnura-senegalensis-femelle.jpg\" alt=\"African Bluetail femelle, Namibie, Rundu, 10\/02\/2020\" class=\"wp-image-4923 lazyload\" style=\"--smush-placeholder-width: 1390px; --smush-placeholder-aspect-ratio: 1390\/1004;width:500px\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/ischnura-senegalensis-femelle.jpg 1390w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/ischnura-senegalensis-femelle-768x555.jpg 768w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/ischnura-senegalensis-femelle-1200x867.jpg 1200w\" data-sizes=\"(max-width: 1390px) 100vw, 1390px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Ischnura senegalensis femelle, Namibie, Rundu, 10\/02\/2020<\/figcaption><\/figure>\n\n\n\n<p style=\"font-size:15px\">Il para\u00eet bien mignon et inoffensif avec sa petite taille, 28 mm en moyenne ; mais il est agressif, tant pour la d\u00e9fense de son territoire qu&rsquo;en ce qui concerne son alimentation et il s&rsquo;attaque volontiers \u00e0 des proies de grande taille. Il ne d\u00e9daigne pas les repas de famille puisque ci-dessous cette femelle d\u00e9vore un jeune m\u00e2le de sa propre esp\u00e8ce, ce qu&rsquo;on qualifie de cannibalisme. <br>Le cannibalisme est extr\u00eamement rare parmi les odonates, qu&rsquo;ils soient zygopt\u00e8res ou anisopt\u00e8res, c&rsquo;est un sujet qui n&rsquo;est pratiquement pas \u00e9tudi\u00e9 [j&rsquo;ai publi\u00e9 en 2024 deux articles sur ce sujet sur le site, pour <a href=\"https:\/\/www.meslibellules.fr\/blog\/2024\/05\/20\/cannibalisme-des-zygopteres\/\" target=\"_blank\" rel=\"noreferrer noopener\">les zygopt\u00e8res<\/a> et pour <a href=\"https:\/\/www.meslibellules.fr\/blog\/2024\/09\/04\/cannibalisme-des-odonates\/\" target=\"_blank\" rel=\"noreferrer noopener\">les anisopt\u00e8res<\/a>]. Les Ischnura sont les <em>champions <\/em>incontest\u00e9s de cette activit\u00e9 parmi les zygopt\u00e8res.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/ischnura-senegalensisXsenegalensis.jpg\"><img decoding=\"async\" width=\"1150\" height=\"1004\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/ischnura-senegalensisXsenegalensis.jpg\" alt=\"Ischnura senegalensis d\u00e9vorant un jeune m\u00e2le I. senegalensis, cannibalisme\" class=\"wp-image-4926 lazyload\" style=\"--smush-placeholder-width: 1150px; --smush-placeholder-aspect-ratio: 1150\/1004;width:447px;height:390px\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/ischnura-senegalensisXsenegalensis.jpg 1150w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/ischnura-senegalensisXsenegalensis-768x670.jpg 768w\" data-sizes=\"(max-width: 1150px) 100vw, 1150px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Ischnura senegalensis femelle d\u00e9vorant un jeune m\u00e2le I. senegalensis, Namibie, \u00e9missaire du barrage Von Bach, 08\/02\/2020<\/figcaption><\/figure>\n\n\n\n<p>J&rsquo;ai publi\u00e9 une \u00e9tude beaucoup plus compl\u00e8te sur le cannibalisme entre zygopt\u00e8res (demoiselles) <a href=\"https:\/\/www.meslibellules.fr\/blog\/2024\/05\/20\/cannibalisme-des-zygopteres\/\">sur cette page<\/a>.<\/p>\n\n\n\n<p style=\"font-size:15px\">Et alors que nous avons eu bien du mal \u00e0 trouver des Agriocnemis (les plus petits des Coenagrionidae) sur les berges de <a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/kalima-17-02-am.jpg\">cette grande mare<\/a>, cet Ischnura senegalensis s&rsquo;est moqu\u00e9 de nous, en d\u00e9gustant un Agriocnemis exilis&#8230;<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/ischnura-senegalensisXagriocnemis.jpg\"><img decoding=\"async\" width=\"1470\" height=\"1204\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/ischnura-senegalensisXagriocnemis.jpg\" alt=\"Ischnura senegalensis accouplement, Katima Mulilo, 17\/02\/2020\" class=\"wp-image-4925 lazyload\" style=\"--smush-placeholder-width: 1470px; --smush-placeholder-aspect-ratio: 1470\/1204;width:442px;height:361px\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/ischnura-senegalensisXagriocnemis.jpg 1470w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/ischnura-senegalensisXagriocnemis-768x629.jpg 768w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/ischnura-senegalensisXagriocnemis-1200x983.jpg 1200w\" data-sizes=\"(max-width: 1470px) 100vw, 1470px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Ischnura senegalensis d\u00e9vorant un Agriocnemis exilis,  Katima Mulilo, 17\/02\/2020<\/figcaption><\/figure>\n\n\n\n<p style=\"font-size:15px\">Une derni\u00e8re r\u00e9flexion \u00e0 propos de cette esp\u00e8ce si commune ; il semble que les sujets africains n&rsquo;aient qu&rsquo;une fine, voire tr\u00e8s fine bande ant\u00e9hum\u00e9rale verte ; celui-ci n&rsquo;en a quasiment pas, comme certains que j&rsquo;avais rencontr\u00e9s en <a href=\"http:\/\/www.meslibellules.fr\/voyages\/afrique-du-sud\/ischnura-senegalensis\/ischnura-semegalensis-male.php\">Afrique du Sud <\/a>ou \u00e0 <a href=\"http:\/\/www.meslibellules.fr\/voyages\/la-reunion\/ischnura-senegalensis\/ischnura-senegalensis-male.php\">la R\u00e9union<\/a>. Celle des sujets asiatiques est plus large.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/ischnura-senegalensis-jeune-male.jpg\"><img decoding=\"async\" width=\"1065\" height=\"1004\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/ischnura-senegalensis-jeune-male.jpg\" alt=\"Marsh bluetail jeune m\u00e2le, Katima Mulilo, 17\/02\/2020\" class=\"wp-image-4940 lazyload\" style=\"--smush-placeholder-width: 1065px; --smush-placeholder-aspect-ratio: 1065\/1004;width:443px;height:416px\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/ischnura-senegalensis-jeune-male.jpg 1065w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/ischnura-senegalensis-jeune-male-768x724.jpg 768w\" data-sizes=\"(max-width: 1065px) 100vw, 1065px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Marsh Bluetail jeune m\u00e2le, Katima Mulilo, 17\/02\/2020)<\/figcaption><\/figure>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">\u00c9tymologie<\/span><br \/>Ischnura<\/strong>\u00a0(Charpentier, 1840) du grec \u00ab\u00a0ischnos\u00a0\u00bb \u2013 fin, et de \u00ab\u00a0ura\u00a0\u00bb \u2013\u00a0<em>queue<\/em>, soit abdomen pour les insectes. Beaucoup d&rsquo;esp\u00e8ces \u00e0 l&rsquo;abdomen encore plus fin \u00e9taient inconnues quand Charpentier a nomm\u00e9 ce genre.<br \/><strong>Senegalensis<\/strong> se r\u00e9f\u00e8re bien s\u00fbr au S\u00e9n\u00e9gal, origine du premier sp\u00e9cimen d\u00e9crit.<\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>Charpentier, 1840<\/strong> \u2013\u00a0<a href=\"https:\/\/archive.org\/details\/bp_4885308\/page\/19\/mode\/2up?q=senegalensis\">Libellulinae europaeae descriptae ac depictae<\/a>. P. 20.<br><strong>Rambur Jules, 1842<\/strong> \u2013\u00a0<em><a href=\"https:\/\/gallica.bnf.fr\/ark:\/12148\/bpt6k61025298\/f298.item\">Histoire naturelle des insectes. N\u00e9vropt\u00e8res<\/a><\/em>\u00a0\u2013 Librairie Encyclop\u00e9dique de Roret. P. 276.<\/p>\n\n\n\n<div style=\"height:29px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\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\/odonates-de-namibie-namibian-odonates\/\">Accueil Namibie<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>La Namibie est le 11\u00b0 pays o\u00f9 je rencontre Ischnura senegalensis et je n&rsquo;ai pas vraiment cherch\u00e9 \u00e0 faire des efforts pour le prendre en photo, d&rsquo;autant que nous l&rsquo;avons rencontr\u00e9 presque tous les jours : il est pr\u00e9sent depuis l&rsquo;Afrique du Sud jusqu&rsquo;en Mauritanie \u00e0 l&rsquo;ouest et \u00e0 l&rsquo;est jusqu&rsquo;au Japon et \u00e0 la [&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":[1390,281,274],"tags":[720,276],"class_list":["post-4928","post","type-post","status-publish","format-image","hentry","category-cannibalisme","category-coenagrionidae-namibie-2","category-namibie","tag-cannibalisme","tag-odonates-de-namibie-namibian-odonates","post_format-post-format-image"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - 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