{"id":668,"date":"2018-09-06T13:29:08","date_gmt":"2018-09-06T11:29:08","guid":{"rendered":"http:\/\/www.meslibellules.fr\/blog\/?p=668"},"modified":"2025-12-27T18:42:04","modified_gmt":"2025-12-27T17:42:04","slug":"vietnam-2018-philoganga-vetusta","status":"publish","type":"post","link":"https:\/\/www.meslibellules.fr\/blog\/2018\/09\/06\/vietnam-2018-philoganga-vetusta\/","title":{"rendered":"Vietnam 2018 &#8211; Philoganga vetusta (Ris, 1912)"},"content":{"rendered":"\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Philoganga-vetusta-male-1.webp\"><img decoding=\"async\" width=\"1796\" height=\"1204\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Philoganga-vetusta-male-1.webp\" alt=\"Philoganga vetusta m\u00e2le, Vietnam, Xuan Son, 8 juin 2018\" class=\"wp-image-27572 lazyload\" style=\"--smush-placeholder-width: 1796px; --smush-placeholder-aspect-ratio: 1796\/1204;width:614px;height:auto\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Philoganga-vetusta-male-1.webp 1796w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Philoganga-vetusta-male-1-768x515.webp 768w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Philoganga-vetusta-male-1-1536x1030.webp 1536w\" data-sizes=\"(max-width: 1796px) 100vw, 1796px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Philoganga vetusta m\u00e2le, Vietnam, Xuan Son, 8 juin 2018<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:15px\">Les Philoganga comme ici Philoganga vetusta se prom\u00e8nent entre les familles depuis quelque temps ; ils n&rsquo;appartiennent plus \u00e0 la famille des Diphlebiidae qui a disparu, mais \u00e0 celle des Philogangidae. Il a \u00e9t\u00e9 d\u00e9crit par Ris, 1912  (1) \u00e0 partir d&rsquo;un sujet de l&rsquo;actuelle province de Guangdong (Canton) et on consid\u00e8re actuellement que sa distribution g\u00e9ographique comprend le sud de la Chine et le Vietnam du Nord.<br><a href=\"https:\/\/www.iucnredlist.org\/species\/167418\/6345336\">IUCN Red List<\/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\/Philoganga-vetusta-male-2.webp\"><img decoding=\"async\" width=\"1339\" height=\"1204\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Philoganga-vetusta-male-2.webp\" alt=\"Philoganga vetusta m\u00e2le, Vietnam, Xuan Son, 8 juin 2018\" class=\"wp-image-27573 lazyload\" style=\"--smush-placeholder-width: 1339px; --smush-placeholder-aspect-ratio: 1339\/1204;width:608px;height:auto\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Philoganga-vetusta-male-2.webp 1339w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Philoganga-vetusta-male-2-768x691.webp 768w\" data-sizes=\"(max-width: 1339px) 100vw, 1339px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Philoganga vetusta m\u00e2le, Vietnam, Xuan Son, 8 juin 2018<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:15px\">Il se pla\u00eet dans les ruisseaux et rivi\u00e8res des for\u00eats de basse montagne,\u00a0<a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/2018\/09\/biotope.jpg\">comme ici<\/a>\u00a0dans\u00a0<a href=\"https:\/\/www.google.fr\/maps\/place\/21%C2%B008'16.8%22N+104%C2%B056'27.2%22E\/@21.1316054,105.0329038,90446m\/data=!3m1!1e3!4m5!3m4!1s0x0:0x0!8m2!3d21.138005!4d104.9408933\" target=\"_blank\" rel=\"noreferrer noopener\">le parc de Xuan Son<\/a>, le 8 juin 2018.<br>Il mesure environ 70 mm, avec un abdomen de 56 mm et une aile post\u00e9rieure de 52 mm.<br> On note la pruinosit\u00e9 \u00e0 la base de l&rsquo;abdomen et sur le thorax qui parvient \u00e0 masquer la coloration jaune des vieux sujets, comme sur la photo ci-dessous.<\/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\/Philoganga-vetusta-male-3.webp\"><img decoding=\"async\" width=\"1711\" height=\"1204\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Philoganga-vetusta-male-3.webp\" alt=\"Philoganga vetusta m\u00e2le, Vietnam, Xuan Son, 8 juin 2018\" class=\"wp-image-27574 lazyload\" style=\"--smush-placeholder-width: 1711px; --smush-placeholder-aspect-ratio: 1711\/1204;width:608px;height:auto\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Philoganga-vetusta-male-3.webp 1711w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Philoganga-vetusta-male-3-768x540.webp 768w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Philoganga-vetusta-male-3-1536x1081.webp 1536w\" data-sizes=\"(max-width: 1711px) 100vw, 1711px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Philoganga vetusta m\u00e2le, Vietnam, Xuan Son, 8 juin 2018<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:15px\">La femelle, avec son abdomen \u00e9pais et son \u00e9norme appareil de ponte, appara\u00eet encore plus impressionnante et robuste que le m\u00e2le.<\/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\/Philoganga-vetusta-femelle-1.webp\"><img decoding=\"async\" width=\"1267\" height=\"1204\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Philoganga-vetusta-femelle-1.webp\" alt=\"Philoganga vetusta femelle, Vietnam, Pia Oac, 5 juin 2018\" class=\"wp-image-27579 lazyload\" style=\"--smush-placeholder-width: 1267px; --smush-placeholder-aspect-ratio: 1267\/1204;width:594px;height:auto\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Philoganga-vetusta-femelle-1.webp 1267w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Philoganga-vetusta-femelle-1-768x730.webp 768w\" data-sizes=\"(max-width: 1267px) 100vw, 1267px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Philoganga vetusta femelle, Vietnam, Pia Oac, 5 juin 2018<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:15px\">Il ne faut pas oublier qu&rsquo;ils appartiennent aux zygopt\u00e8res, au m\u00eame titre que les Agriocnemis par exemple, qui eux,&nbsp;mesurent \u00e0 peine plus de 20 mm ! Mais encore une exception \u00e0 la r\u00e8gle, ce sont des zygopt\u00e8res qui se posent avec les ailes ouvertes.<br>Ils sont dot\u00e9s d&rsquo;un nom vernaculaire anglais qui souligne leur caract\u00e8re massif de leur habitus, Ochre titan.<\/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\/Philoganga-vetusta-femelle-2.webp\"><img decoding=\"async\" width=\"1570\" height=\"1204\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Philoganga-vetusta-femelle-2.webp\" alt=\"Ochre titan female, Vietnam, Xuan Son, 8 juin 2018.\" class=\"wp-image-27580 lazyload\" style=\"--smush-placeholder-width: 1570px; --smush-placeholder-aspect-ratio: 1570\/1204;width:533px;height:auto\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Philoganga-vetusta-femelle-2.webp 1570w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Philoganga-vetusta-femelle-2-768x589.webp 768w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Philoganga-vetusta-femelle-2-1536x1178.webp 1536w\" data-sizes=\"(max-width: 1570px) 100vw, 1570px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Ochre titan female, Vietnam, Xuan Son, 8 juin 2018.<\/figcaption><\/figure>\n\n\n\n<div style=\"height:31px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u00c9tymologie<\/strong><br><strong>Philoganga<\/strong>, du grec\u00a0<em>philo<\/em>,\u00a0<em>ami<\/em>,\u00a0<em>qui aime<\/em>\u00a0et des langues indiennes\u00a0<em>Ganga<\/em>\u00a0pour Gange (le fleuve). Car, \u00e0 l\u2019\u00e9poque de Kirby qui a cr\u00e9\u00e9 le genre en 1890, les sp\u00e9cimens provenaient principalement des r\u00e9gions montagneuses du nord de l\u2019Inde (Himalaya),\u00a0<em>l\u00e0 o\u00f9 le Gange prend sa source<\/em>. Ce qui est plus po\u00e9tique que g\u00e9ographiquement exact, puisque le sp\u00e9cimen de la\u00a0<em>collection Selys<\/em>\u00a0[ P. montana, esp\u00e8ce type du genre] provient sans doute de Darjeeling, nettement plus \u00e0 l\u2019ouest. Le sp\u00e9cimen d\u00e9crit par Navas rompt  le lien avec les sources du Gange, puisqu&rsquo;il provient de la province chinoise du Guangdong.<br><strong>Vetusta<\/strong>, du latin vetustus qui signifie tr\u00e8s ancien, archa\u00efque. Avant de d\u00e9crire l&rsquo;esp\u00e8ce nouvelle, Ris r\u00e9dige un assez long commentaire \u00e0 propos des Philoganga dans lequel il \u00e9crit :\u00a0\u00bb <em>Schon ihr groteskes Aussehen lenkt zwingend die Gedanken auf versunkene Welten, und der Adorbau ist von einer unter den lebenden Odonaten kaum noch \u00fcbertroffenen Primitivit\u00e4t<\/em>.\u00a0\u00bb. Soit : \u00ab\u00a0<em>Son aspect grotesque \u00e0 lui seul force l\u2019esprit \u00e0 se tourner vers des mondes engloutis, et la nervation alaire est d\u2019une primitivit\u00e9 \u00e0 peine surpass\u00e9e parmi les odonates actuels.<\/em>\u00ab\u00a0.<\/p>\n\n\n\n<div style=\"height:31px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">1- Ris P., <a href=\"https:\/\/sdei.senckenberg.de\/media\/openaccess\/01429.pdf\"><em>Neue Libellen von Formosa<\/em>,&nbsp;<em>S\u00fcdchina<\/em>,&nbsp;<em>Tonkin und den Philippinen<\/em>. Supplementa Entomologica(1)<\/a>: p 47.<\/p>\n\n\n\n<div style=\"height:35px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n\n\n<div class=\"wp-block-buttons is-vertical is-layout-flex wp-container-core-buttons-is-layout-2c90304e 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-du-vietnam-2012-2018\/\">Accueil Vietnam<\/a><\/div>\n\n\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"http:\/\/www.meslibellules.fr\/pagesweb\/divers\/liste-generale-odonates-du-site\/asia-odonates.php\">Liste Asie<\/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>Les Philoganga comme ici Philoganga vetusta se prom\u00e8nent entre les familles depuis quelque temps ; ils n&rsquo;appartiennent plus \u00e0 la famille des Diphlebiidae qui a disparu, mais \u00e0 celle des Philogangidae. Il a \u00e9t\u00e9 d\u00e9crit par Ris, 1912 (1) \u00e0 partir d&rsquo;un sujet de l&rsquo;actuelle province de Guangdong (Canton) et on consid\u00e8re actuellement que sa [&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":[26],"tags":[],"class_list":["post-668","post","type-post","status-publish","format-image","hentry","category-philogangidae","post_format-post-format-image"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - 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