{"id":5014,"date":"2013-08-05T08:00:02","date_gmt":"2013-08-05T06:00:02","guid":{"rendered":"http:\/\/codexvirtualis.fr\/codex\/?p=5014"},"modified":"2013-07-22T22:46:18","modified_gmt":"2013-07-22T20:46:18","slug":"semaine-32-2013","status":"publish","type":"post","link":"https:\/\/codexvirtualis.fr\/codex\/semaine-32-2013","title":{"rendered":"Semaine 32-2013"},"content":{"rendered":"

Une citation<\/h2>\n

\u00ab\u00a0Apprendre, ce n’est pas remplir une outre, mais allumer un feu.\u00a0\u00bb<\/p>\n

H\u00e9raclite<\/p>\n

  <\/p>\n

Une image<\/h2>\n
\"Gu\u00eape<\/a>
Gu\u00eape dor\u00e9e (Lyon, juillet 2010 – G. Rigaud)<\/figcaption><\/figure>\n

  <\/p>\n

La Gu\u00eape dor\u00e9e est un Insecte de l’ordre des Hym\u00e9nopt\u00e8res<\/a> et de la famille des Chrysid\u00e9s.<\/p>\n

Les adultes<\/a> de ce groupe sont pr\u00e9sents d’avril \u00e0 septembre, et affectionnent les sites ensoleill\u00e9s.<\/p>\n

Les diff\u00e9rentes esp\u00e8ces fr\u00e9quentent des habitats distincts : espaces fleuris, vieux bois, zones rocheuses etc.<\/p>\n

  <\/p>\n

De taille relativement modeste (leur longueur est d’environ 10 mm), les Gu\u00eapes dor\u00e9es sont caract\u00e9ris\u00e9es par leurs couleurs m\u00e9talliques.
\nDans nos r\u00e9gions, les esp\u00e8ces les plus communes arborent une t\u00eate et un thorax bleus ou verts, et une r\u00e9gion post\u00e9rieure rouge, cuivr\u00e9e ou dor\u00e9e, dont les teintes varient selon l’angle d’observation.<\/p>\n

La r\u00e9gion post\u00e9rieure est g\u00e9n\u00e9ralement aplatie ou concave sur sa face inf\u00e9rieure. L’animal peut ainsi se rouler en boule, position lui assurant une protection efficace vis \u00e0 vis des Hym\u00e9nopt\u00e8res avec lesquels il interagit. <\/p>\n

  <\/p>\n

En effet, les Chrysid\u00e9s sont des Hym\u00e9nopt\u00e8res solitaires parasito\u00efdes : les femelles d\u00e9posent leurs \u0153ufs dans les nids de Gu\u00eapes ou d’Abeilles solitaires. La d\u00e9nomination de \u00ab\u00a0Gu\u00eape coucou\u00a0\u00bb employ\u00e9e pour les d\u00e9signer trouve son origine dans ce ph\u00e9nom\u00e8ne.<\/p>\n

L’\u00e9closion des \u0153ufs lib\u00e8re des larves<\/a> qui se nourrissent des \u0153ufs, des larves des h\u00f4tes ou des r\u00e9serves nutritives qui leur sont destin\u00e9es.<\/p>\n

Elles se transforment ensuite en nymphes<\/a> d’o\u00f9 \u00e9mergent de nouveaux adultes, g\u00e9n\u00e9ralement l’ann\u00e9e suivante.<\/p>\n

Selon les esp\u00e8ces, les larves ou les nymphes passent l’hiver, en vie ralentie.<\/p>\n

  <\/p>\n

Pour acc\u00e9der aux images des Abeilles et Insectes apparent\u00e9s des parcs de Gerland et des berges du Rh\u00f4ne<\/a><\/p>\n

  <\/p>\n

Pour en savoir plus sur les Chrysid\u00e9s : Agnoli G.L. & Rosa P., Chrysis.net<\/a> (adresse http:\/\/www.chrysis.net)<\/p>\n

  <\/p>\n

\n","protected":false},"excerpt":{"rendered":"

Une citation \u00ab\u00a0Apprendre, ce n’est pas remplir une outre, mais allumer un feu.\u00a0\u00bb H\u00e9raclite   Une image   La Gu\u00eape dor\u00e9e est un Insecte de l’ordre des Hym\u00e9nopt\u00e8res et de la famille des Chrysid\u00e9s. Les adultes de ce groupe sont pr\u00e9sents d’avril \u00e0 septembre, et affectionnent les sites ensoleill\u00e9s. Les diff\u00e9rentes esp\u00e8ces fr\u00e9quentent des habitats […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","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":"default","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":"","jetpack_post_was_ever_published":false},"categories":[1],"tags":[28,17,23],"class_list":["post-5014","post","type-post","status-publish","format-standard","hentry","category-a-la-une","tag-biologie","tag-insecte","tag-observation"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t