{"id":17425,"date":"2023-12-19T08:47:23","date_gmt":"2023-12-19T07:47:23","guid":{"rendered":"https:\/\/www.meslibellules.fr\/blog\/?p=17425"},"modified":"2026-02-08T09:06:40","modified_gmt":"2026-02-08T08:06:40","slug":"megaloprepus-caerulatus","status":"publish","type":"post","link":"https:\/\/www.meslibellules.fr\/blog\/2023\/12\/19\/megaloprepus-caerulatus\/","title":{"rendered":"Megalopreprus caerulatus (Drury, 1782)"},"content":{"rendered":"\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/megaloprepus-caerulatus-male-1bigbig.jpg\"><img decoding=\"async\" width=\"506\" height=\"653\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/megaloprepus-caerulatus-male-1bigbig.jpg\" alt=\"Megaloprepus caerulatus m\u00e2le, Panama, Pipeline road, 28\/08\/2012\" class=\"wp-image-17419 lazyload\" style=\"--smush-placeholder-width: 506px; --smush-placeholder-aspect-ratio: 506\/653;width:303px;height:auto\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Megaloprepus caerulatus m\u00e2le, Panama, Pipeline road, 28\/08\/2012<\/figcaption><\/figure>\n\n\n\n<p>Megalopreprus caerulatus est un spectaculaire Coenagrionidae, une des plus grandes libellules du monde, avec 13 cm de longueur totale et une envergure record de 19 cm. Il appartenait aux Pseudostigmatidae, famille aujourd&rsquo;hui int\u00e9gr\u00e9e au Coenagrionidae.<br>Helicopter! Helicopter! C&rsquo;est le cri que&nbsp;chacun d&rsquo;entre nous se devait de pousser pour pr\u00e9venir de la d\u00e9couverte d&rsquo;un Blue-winged helicopter. Helicopter est son nom de genre anglo-saxon, qui lui a \u00e9t\u00e9 donn\u00e9 pour illustrer son vol ; il bat des ailes lentement et les taches qu&rsquo;il porte \u00e0 l&rsquo;apex des ailes, semblent tourner en vol, \u00e0 la fa\u00e7on d&rsquo;un h\u00e9licopt\u00e8re.<\/p>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:46% auto\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/megaloprepus-caerulatus-male-2big.jpg\"><img decoding=\"async\" width=\"560\" height=\"652\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/megaloprepus-caerulatus-male-2big.jpg\" alt=\"Megaloprepus caerulatus m\u00e2le, Panama, Pipeline road, 28\/08\/2012\" class=\"wp-image-17420 size-full lazyload\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 560px; --smush-placeholder-aspect-ratio: 560\/652;\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<p>Malheureusement, je n&rsquo;ai pas vu de m\u00e2le de mani\u00e8re satisfaisante. \u00c0 chaque fois, nous l&rsquo;avons vu pos\u00e9 en hauteur, jamais en dessous de 3 ou 4 m\u00e8tres et m\u00eame plus haut, et surtout tr\u00e8s loin de nous, s&rsquo;\u00e9chappant encore plus haut lors de notre venue, fid\u00e8le \u00e0 sa r\u00e9putation de libellule difficile \u00e0 approcher.<br><br>Les taches alaires sont tr\u00e8s variables au point qu&rsquo;on a fini par identifier deux esp\u00e8ces au Costa Rica, l&rsquo;une sur les pentes carib\u00e9ennes, l&rsquo;autre sur les pentes Pacifique. Une r\u00e9vision du genre a \u00e9t\u00e9 publi\u00e9e en mars 2022, j&rsquo;esp\u00e8re y avoir acc\u00e8s prochainement&#8230;<br><br>Panama, Pipeline road, 28\/08\/2012.<\/p>\n<\/div><\/div>\n\n\n\n<div style=\"height:28px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile\" style=\"grid-template-columns:auto 41%\"><div class=\"wp-block-media-text__content\">\n<p>Megaloprepus caerulatus est une des rares esp\u00e8ces d&rsquo;odonates o\u00f9 les femelles sont notablement plus petites que les m\u00e2les.<br>Cet odonate de tous les records a une autre particularit\u00e9 ; la femelle pond sur les bords des trous d&rsquo;arbres remplis d&rsquo;eau, ce qui est commun dans la for\u00eat pluviale. La larve peut ainsi se d\u00e9velopper en mangeant d&rsquo;autres larves, comme celles des moustiques ou m\u00eame des t\u00eatards, voire d&rsquo;autres membres de leur esp\u00e8ce, car le cannibalisme ne les d\u00e9range pas.<br><br>Les adultes se nourrissent d&rsquo;araign\u00e9es, mais tr\u00e8s peu des proies immobilis\u00e9es dans leurs toiles. On les voit ainsi, en vol stationnaire, capturer les araign\u00e9es sur leur toile ou \u00e0 proximit\u00e9, utilisant leurs longues pattes. Les <em>Araneidae<\/em> ou les <em>Tetragnathidae<\/em> sont souvent victimes de ce mode de pr\u00e9dation original.<br><br>Panama, Watercress Trail, 05\/09\/2012.<br><br><\/p>\n<\/div><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/megaloprepus-caerulatus-femelle-3big.jpg\"><img decoding=\"async\" width=\"671\" height=\"1004\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/megaloprepus-caerulatus-femelle-3big.jpg\" alt=\"Megaloprepus caerulatus femelle, Panama, Watercress Trail, 05\/09\/2012\" class=\"wp-image-17421 size-full lazyload\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 671px; --smush-placeholder-aspect-ratio: 671\/1004;\" \/><\/a><\/figure><\/div>\n\n\n\n<div style=\"height:34px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:42% auto\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/megaloprepus-caerulatus-femelle-4big.webp\"><img decoding=\"async\" width=\"872\" height=\"1204\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/megaloprepus-caerulatus-femelle-4big.webp\" alt=\"Blue-winged helicopter female, Panama, Pipeline road, 28\/08\/2012\" class=\"wp-image-17422 size-full lazyload\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/megaloprepus-caerulatus-femelle-4big.webp 872w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/megaloprepus-caerulatus-femelle-4big-768x1060.webp 768w\" data-sizes=\"(max-width: 872px) 100vw, 872px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 872px; --smush-placeholder-aspect-ratio: 872\/1204;\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<p>Noter ci-dessus la diff\u00e9rence d&rsquo;aspect de la coloration alaire entre m\u00e2le et femelle. Pour ces derni\u00e8res, l&rsquo;apex montre deux taches blanches alors que la partie de l&rsquo;aile situ\u00e9e avant la tache sombre est hyaline, l\u00e0 o\u00f9 pour le m\u00e2le, on distingue un nuage blanch\u00e2tre.<br><br>L&rsquo;esp\u00e8ce est consid\u00e9r\u00e9e comme peu fr\u00e9quente ou, en tout cas, il est rarement vu ; il faut dire qu&rsquo;elle ne s&rsquo;approche pas de l&rsquo;eau et vit dans les clairi\u00e8res de la for\u00eat pluviale, lieux qui sont peu prospect\u00e9s. Nous l&rsquo;avons pourtant rencontr\u00e9e 11 jours sur les 14 de notre s\u00e9jour.<br><br>Pipeline road, 28\/08\/2012.<\/p>\n<\/div><\/div>\n\n\n\n<div style=\"height:27px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile\"><div class=\"wp-block-media-text__content\">\n<p>Son domaine est la for\u00eat humide et, comme d\u00e9j\u00e0 dit, il n&rsquo;est pas inf\u00e9od\u00e9 aux eaux courantes ou statiques, il se contente de l&rsquo;eau que contiennent les trous d&rsquo;arbre.<br><br><br>On le rencontre en Am\u00e9rique centrale et en Am\u00e9rique du Sud, du Mexique \u00e0 la Bolivie.<br><a href=\"https:\/\/www.iucnredlist.org\/species\/49254229\/49256749#geographic-range\">IUCN Red List<\/a><br><br>Megaloprepus caerulatus est \u00e9galement un des odonates \u00e0 la vie ail\u00e9e la plus longue puisqu&rsquo;une session de marquage-recapture a montr\u00e9 un individu \u00e2g\u00e9 d&rsquo;au moins 6 mois.<br><br>Panama, Altos de Maria, 02\/09\/2012.<\/p>\n<\/div><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/megaloprepus-caerulatus-femelle-2big.jpg\"><img decoding=\"async\" width=\"1155\" height=\"1229\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/megaloprepus-caerulatus-femelle-2big.jpg\" alt=\"Megaloprepus caerulatus femelle, Panama, Altos de Maria, 02\/09\/2012\" class=\"wp-image-17424 size-full lazyload\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/megaloprepus-caerulatus-femelle-2big.jpg 1155w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/megaloprepus-caerulatus-femelle-2big-768x817.jpg 768w\" data-sizes=\"(max-width: 1155px) 100vw, 1155px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1155px; --smush-placeholder-aspect-ratio: 1155\/1229;\" \/><\/a><\/figure><\/div>\n\n\n\n<div style=\"height:32px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:40% auto\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/megaloprepus-caerulatus-femelle-1big.jpg\"><img decoding=\"async\" width=\"846\" height=\"1204\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/megaloprepus-caerulatus-femelle-1big.jpg\" alt=\"Blue-winged helicopter female, Panama, Pipeline road, 28\/08\/2012\" class=\"wp-image-17423 size-full lazyload\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/megaloprepus-caerulatus-femelle-1big.jpg 846w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/megaloprepus-caerulatus-femelle-1big-768x1093.jpg 768w\" data-sizes=\"(max-width: 846px) 100vw, 846px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 846px; --smush-placeholder-aspect-ratio: 846\/1204;\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<p><strong>\u00c9tymologie<\/strong> Megaloprepus caerulatus<br><br><strong>Megaloprepus<\/strong> ; Rambur (1842) ne donne aucune indication. <em>Megalo<\/em> vient du grec ancien et signifie <em>grand, tr\u00e8s grand<\/em>, et <em>prepus<\/em>, du grec <em>prepein<\/em> qui signifie <em>se distinguer<\/em>, <em>\u00eatre magnique<\/em>. Megaloprepus signifie donc \u00ab\u00a0<em>celui qui est d&rsquo;une grandeur magnifique<\/em>\u00a0\u00bb ou \u00ab\u00a0<em>qui se distingue par sa taille<\/em>\u00ab\u00a0<br><br><strong>Caerulatus<\/strong> est compos\u00e9 du latin <em>caerulus<\/em>, pour <em>bleu<\/em>, et du pr\u00e9fixe <em>atus<\/em>, signifiant <em>dot\u00e9 de<\/em> , qui se rapporte \u00e0 la coloration alaire sombre, qui, si elle para\u00eet noire, montre des reflets bleut\u00e9s.<br><br><br>Panama, Pipeline road, 28\/08\/2012<\/p>\n<\/div><\/div>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Ci-dessous la description de Drury ; avec un texte r\u00e9dig\u00e9 en deux langues. Un exemple qui n&rsquo;est malheureusement plus suivi que dans de tr\u00e8s rares ouvrages  \ud83d\ude42 .<br>Plus bas, une de ses magnifiques planches en couleur sur laquelle on peut lire le nom <em>caerulata<\/em>.<\/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\/Description-Libellula-caaerulata-Drury.webp\"><img decoding=\"async\" width=\"1093\" height=\"458\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Description-Libellula-caaerulata-Drury.webp\" alt=\"Description Libellula caerulata, Drury\" class=\"wp-image-28096 lazyload\" style=\"--smush-placeholder-width: 1093px; --smush-placeholder-aspect-ratio: 1093\/458;aspect-ratio:2.386494017374201;width:622px;height:auto\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Description-Libellula-caaerulata-Drury.webp 1093w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Description-Libellula-caaerulata-Drury-768x322.webp 768w\" data-sizes=\"(max-width: 1093px) 100vw, 1093px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Description Libellula caerulata, Drury<\/figcaption><\/figure>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Planche-Libellula-caaerulata-Drury.webp\"><img decoding=\"async\" width=\"758\" height=\"916\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Planche-Libellula-caaerulata-Drury.webp\" alt=\"Planche Libellula caaerulata, Drury\" class=\"wp-image-28097 size-full lazyload\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 758px; --smush-placeholder-aspect-ratio: 758\/916;\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<p><strong>Drury, 1782<\/strong> &#8211; <a href=\"https:\/\/www.biodiversitylibrary.org\/page\/40638384#page\/211\/mode\/1up\">Illustrations of natural history. Wherein are exhibited upwards of two hundred and forty figures of exotic insects, according to their different genera \u2026<\/a> With a particular description of each insect: interspersed with remarks and reflections on the nature and properties of many of them (Vol. 3, p. 75). Printed for the author and sold by B. White.<br><br><strong>Rambur, Jules, 1842<\/strong>\u00a0\u2013\u00a0<em><a href=\"https:\/\/gallica.bnf.fr\/ark:\/12148\/bpt6k61025298\/f312.item\">Histoire naturelle des insectes. N\u00e9vropt\u00e8res<\/a><\/em>\u00a0\u2013 Librairie Encyclop\u00e9dique de Roret. P. 290.<\/p>\n<\/div><\/div>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/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\/voyages\/panama\/accueil-panama.php\">Accueil Panama<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Megalopreprus caerulatus est un spectaculaire Coenagrionidae, une des plus grandes libellules du monde, avec 13 cm de longueur totale et une envergure record de 19 cm. Il appartenait aux Pseudostigmatidae, famille aujourd&rsquo;hui int\u00e9gr\u00e9e au Coenagrionidae.Helicopter! Helicopter! C&rsquo;est le cri que&nbsp;chacun d&rsquo;entre nous se devait de pousser pour pr\u00e9venir de la d\u00e9couverte d&rsquo;un Blue-winged helicopter. Helicopter [&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":[],"class_list":["post-17425","post","type-post","status-publish","format-image","hentry","category-non-classe","post_format-post-format-image"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - 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