{"id":1622,"date":"2018-11-30T19:23:30","date_gmt":"2018-11-30T18:23:30","guid":{"rendered":"http:\/\/www.meslibellules.fr\/blog\/?p=1622"},"modified":"2026-01-28T13:09:00","modified_gmt":"2026-01-28T12:09:00","slug":"vietnam-2018-macromia-urania-ris-1916","status":"publish","type":"post","link":"https:\/\/www.meslibellules.fr\/blog\/2018\/11\/30\/vietnam-2018-macromia-urania-ris-1916\/","title":{"rendered":"Vietnam 2018 &#8211; Macromia urania (Ris, 1916)"},"content":{"rendered":"\n<figure class=\"wp-block-image aligncenter is-resized\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/2018\/11\/macromia-urania.jpg\"><img decoding=\"async\" width=\"1078\" height=\"1204\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/2018\/11\/macromia-urania.jpg\" alt=\"Macromia urania femelle, Vietnam, Cao Bang, 06\/06\/2018\" class=\"wp-image-1619 lazyload\" style=\"--smush-placeholder-width: 1078px; --smush-placeholder-aspect-ratio: 1078\/1204;width:324px;height:auto\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/2018\/11\/macromia-urania.jpg 1078w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/2018\/11\/macromia-urania-768x858.jpg 768w\" data-sizes=\"(max-width: 1078px) 100vw, 1078px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Macromia urania femelle, Vietnam, Cao Bang, 06\/06\/2018<\/figcaption><\/figure>\n\n\n\n<p style=\"font-size:14px\">Ris a captur\u00e9 le sp\u00e9cimen qu&rsquo;il a d\u00e9crit en 1916 au Tonkin, c&rsquo;est-\u00e0-dire l&rsquo;actuel nord Vietnam. Ris donne une longueur de l&rsquo;abdomen de 42 mm pour les m\u00e2les et de 49 pour les femelles. On trouve \u00e9galement une cl\u00e9 des m\u00e2les par Lieftinck ou il donne une longueur de l&rsquo;abdomen de 48 \u00e0 49 mm pour la femelle (comme ici) soit une longueur totale de 66 mm environ (A Revision of the known malaysian Dragonflies of the genus Macromia Rambur).\u00a0<br>L&rsquo;esp\u00e8ce est connue en Chine (Fujian, Guangdong, Hainan, Hong Kong et Ta\u00efwan), au Japon, au Vietnam et aussi en Malaisie, mais cette derni\u00e8re localisation semble curieusement ignor\u00e9e par l&rsquo;<a href=\"https:\/\/www.iucnredlist.org\/species\/12602\/3365217\">IUCN<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter is-resized\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/2018\/11\/macromia-urania-2.jpg\"><img decoding=\"async\" width=\"1620\" height=\"1204\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/2018\/11\/macromia-urania-2.jpg\" alt=\"Macromia urania femelle, Vietnam, Cao Bang, 06\/06\/2018\" class=\"wp-image-1620 lazyload\" style=\"--smush-placeholder-width: 1620px; --smush-placeholder-aspect-ratio: 1620\/1204;aspect-ratio:1.345707656612529;width:471px;height:auto\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/2018\/11\/macromia-urania-2.jpg 1620w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/2018\/11\/macromia-urania-2-768x571.jpg 768w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/2018\/11\/macromia-urania-2-1200x892.jpg 1200w\" data-sizes=\"(max-width: 1620px) 100vw, 1620px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Macromia urania femelle, Vietnam, Cao Bang, 06\/06\/2018<\/figcaption><\/figure>\n\n\n\n<p style=\"font-size:14px\">Cette femelle a \u00e9t\u00e9 captur\u00e9e sur une rivi\u00e8re au fond de sable et de gravillons dans un environnement bois\u00e9 et vallonn\u00e9, o\u00f9 le cort\u00e8ge de Gomphidae et de Macromia est spectaculaire.&nbsp;<br>Les trois photos de cette page sont diff\u00e9rentes photos de la m\u00eame femelle \u00e0 quelques secondes d&rsquo;intervalle. Je suis tr\u00e8s surpris de constater la densit\u00e9 des \u00e9pines sur les tibias des pattes moyennes sur la photo ci-dessus. <a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/2018\/11\/macromia-urania-4.jpg\">Ici, un agrandissement<\/a> de cette photo.<br>Il semble, que comme toujours, il y ait deux rang\u00e9es d&rsquo;\u00e9pines sur les tibias ouvertes en \u00ab\u00a0V\u00a0\u00bb vers l&rsquo;avant, mais aussi la m\u00eame chose vers l&rsquo;int\u00e9rieur avec des \u00e9pines plus courtes. Les \u00e9pines sur le f\u00e9mur paraissent aussi plus nombreuses que d&rsquo;ordinaire, et cette singularit\u00e9 touche aussi les pattes ant\u00e9rieures&#8230; C&rsquo;est peut-\u00eatre le cas d&rsquo;autres Macromia, mais je n&rsquo;avais jamais eu l&rsquo;occasion d&rsquo;observer ce type de r\u00e9partition des \u00e9pines sur un autre odonate. Ces Macromia se servent-elles aussi des pattes moyennes pour capturer leurs proies alors que ce r\u00f4le est plut\u00f4t habituellement d\u00e9volu aux pattes ant\u00e9rieures ?<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter is-resized\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/2018\/11\/macromia-urania-3.jpg\"><img decoding=\"async\" width=\"729\" height=\"684\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/2018\/11\/macromia-urania-3.jpg\" alt=\"Macromia urania femelle, Vietnam, Cao Bang, 06\/06\/2018\" class=\"wp-image-1621 lazyload\" style=\"--smush-placeholder-width: 729px; --smush-placeholder-aspect-ratio: 729\/684;width:482px;height:auto\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Macromia urania femelle, Vietnam, Cao Bang, 06\/06\/2018<\/figcaption><\/figure>\n\n\n\n<p style=\"font-size:14px\">Sur cette derni\u00e8re photo, on admire ses yeux superbes, avec deux zones bien d\u00e9limit\u00e9es qui correspondent \u00e0 deux structures diff\u00e9rentes, deux nappes diff\u00e9rentes d&rsquo;yeux simples ou ommatidies qui r\u00e9alisent l\u2019\u0153il compos\u00e9 des odonates. Chacune de ces zones a <a aria-label=\"Sur cette derni\u00e8re photo on admire ses yeux superbes, avec 2 zones bien d\u00e9limit\u00e9es qui correspondent \u00e0 2 structures diff\u00e9rentes, 2 nappes diff\u00e9rentes d'yeux simples ou ommatidies qui r\u00e9alisent l\u2019\u0153il compos\u00e9 des odonates. Chacune de ces zones a un r\u00f4le d\u00e9fini.\nMais on remarque aussi les taches sombres dans la partie inf\u00e9rieure de l\u2019\u0153il, taches qui semblent situ\u00e9es au fond de l\u2019\u0153il et que l'on aper\u00e7oit par transparence: il s'agit de ce qu'on appelle pseudo pupilles.&nbsp;\nLes pseudo pupilles correspondent aux r\u00e9gions o\u00f9 la direction des ommatidies est la m\u00eame que celle de l'axe optique de l'observateur et ce ph\u00e9nom\u00e8ne se mat\u00e9rialise sous la forme de taches (virtuelles) noires. (ouverture dans un nouvel onglet)\" href=\"http:\/\/www.meslibellules.fr\/thematique\/anat\/loeil\/loeil.html\" target=\"_blank\" rel=\"noreferrer noopener\">un r\u00f4le d\u00e9fini<\/a>.<br>Mais on remarque aussi les taches sombres dans la partie inf\u00e9rieure de l\u2019\u0153il, taches qui semblent situ\u00e9es au fond de l\u2019\u0153il et que l&rsquo;on aper\u00e7oit par transparence&nbsp;: il s&rsquo;agit de ce qu&rsquo;on appelle des pseudo-pupilles.&nbsp;<br>Les pseudo-pupilles correspondent aux r\u00e9gions o\u00f9 la direction des ommatidies est la m\u00eame que celle de l&rsquo;axe optique de l&rsquo;observateur et ce ph\u00e9nom\u00e8ne se mat\u00e9rialise sous la forme de taches (virtuelles) noires.&nbsp;<br>\u00c0 noter aussi les curieuses cornes qu&rsquo;elle porte sur le front.<\/p>\n\n\n\n<p><strong>\u00c9tymologie<\/strong><br><strong>Macromia<\/strong> du grec \u2013<em>macro<\/em>\u00a0pour\u00a0<em>grand<\/em>\u00a0ou\u00a0<em>large<\/em>\u00a0et \u2013<em>omos<\/em>\u00a0pour\u00a0<em>\u00e9paule<\/em>, pour insister sur le thorax massif.<br><strong>Urania<\/strong> ; Uranie dans la mythologie grecque, est la muse de l&rsquo;astronomie et il ne faut pas chercher de rapport avec l&rsquo;odonate d\u00e9crit, si ce n&rsquo;est l&rsquo;habitude de donner des noms de h\u00e9ros historiques ou mythologiques qui perdurera encore des ann\u00e9es apr\u00e8s Ris. C&rsquo;est F\u00f6rster qui en 1900 avait donn\u00e9 l&rsquo;exemple avec <em>M. terpsichore<\/em>. Ris a  donn\u00e9 un nom de muse \u00e0 plusieurs autres Macromia ; <em>M. calliope<\/em> (1916), <em>M. clio<\/em> (1916) et <em>M. melpomene<\/em> (1913).<br>Un autre auteur suivra: <em>M. euteurpe<\/em> Laidlaw, 1915.<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>Ris, 1916<\/strong>.\u00a0<a href=\"https:\/\/sdei.senckenberg.de\/media\/openaccess\/01473.pdf\">H. Sauter\u2019s Formosa-Ausbeute. Odonata<\/a>.\u00a0<em>Supplementa Entomologica<\/em>, 5, 1\u201381- p.68.<\/p>\n\n\n\n<div style=\"height:54px\" 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\/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>Ris a captur\u00e9 le sp\u00e9cimen qu&rsquo;il a d\u00e9crit en 1916 au Tonkin, c&rsquo;est-\u00e0-dire l&rsquo;actuel nord Vietnam. Ris donne une longueur de l&rsquo;abdomen de 42 mm pour les m\u00e2les et de 49 pour les femelles. On trouve \u00e9galement une cl\u00e9 des m\u00e2les par Lieftinck ou il donne une longueur de l&rsquo;abdomen de 48 \u00e0 49 mm [&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":[1],"tags":[71,19],"class_list":["post-1622","post","type-post","status-publish","format-image","hentry","category-non-classe","tag-macromiidae","tag-vietnam","post_format-post-format-image"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - 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