{"id":17650,"date":"2023-12-31T21:35:14","date_gmt":"2023-12-31T20:35:14","guid":{"rendered":"https:\/\/www.meslibellules.fr\/blog\/?page_id=17650"},"modified":"2026-01-07T20:25:50","modified_gmt":"2026-01-07T19:25:50","slug":"onychogomphus-forcipatus","status":"publish","type":"page","link":"https:\/\/www.meslibellules.fr\/blog\/onychogomphus-forcipatus\/","title":{"rendered":"Onychogomphus forcipatus (Linnaeus, 1758)"},"content":{"rendered":"\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/onychogomphus-forcipatus-male-accueil-2-1.webp\"><img decoding=\"async\" width=\"2126\" height=\"1204\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/onychogomphus-forcipatus-male-accueil-2-1.webp\" alt=\"Onychogomphus forcipatus m\u00e2le, Etang de Joreau, Gennes sur Loire, 17\/06\/2012\" class=\"wp-image-17652 lazyload\" style=\"--smush-placeholder-width: 2126px; --smush-placeholder-aspect-ratio: 2126\/1204;width:582px;height:auto\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/onychogomphus-forcipatus-male-accueil-2-1.webp 2126w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/onychogomphus-forcipatus-male-accueil-2-1-768x435.webp 768w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/onychogomphus-forcipatus-male-accueil-2-1-1536x870.webp 1536w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/onychogomphus-forcipatus-male-accueil-2-1-2048x1160.webp 2048w\" data-sizes=\"(max-width: 2126px) 100vw, 2126px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Onychogomphus forcipatus m\u00e2le, Etang de Joreau, Gennes sur Loire, 17\/06\/2012<\/figcaption><\/figure>\n\n\n\n<h5><span style=\"text-decoration: underline;\">Description &#8211; Identification<\/span><\/h5>\n\n\n\n<p>Le <strong>m\u00e2le<\/strong> Onychogomphus forcipatus, comme tous nos Gomphidae fran\u00e7ais (sauf O. cecilia) est jaune et noir avec des yeux verts ou bleus (ssp. sudiste unguiculatus). Il mesure 46 \u00e0 50 mm (50 mm est la longueur d&rsquo;une allumette).<br>Il se distingue des autres Gomphidae par ses appendices anaux en \u00ab\u00a0pince \u00e0 sucre\u00a0\u00bb et, de son seul cousin fran\u00e7ais, O. uncatus,  par au moins 3 d\u00e9tails :<\/p>\n\n\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile\" style=\"grid-template-columns:auto 57%\"><div class=\"wp-block-media-text__content\">\n<p>&#8211; Les 2 bandes noires (fascias) qu&rsquo;il porte \u00e0 la partie sup\u00e9rieure du thorax sont divergentes, la sup\u00e9rieure coud\u00e9e en son milieu et (presque) toujours jointive avec la ligne noire m\u00e9diane (elles sont parall\u00e8les pour <a href=\"http:\/\/www.meslibellules.fr\/pagesweb\/gomphidae\/onychogomphus\/uncatus\/onychogomphus-uncatus-male-3\/onychogomphus-uncatus-male-7big.jpg\">O. uncatus <\/a>et la sup\u00e9rieure non jointive).<br><br>&#8211; Il est le seul des Gomphidae, en France, \u00e0 montrer une <a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Onychogomphus-forcipatus-vs-uncatus.webp\">barrette jaune sur le vertex<\/a> dans 99,9 % des sujets (absente pour O. uncatus).<br><br>&#8211; La bande noire thoracique m\u00e9diane sup\u00e9rieure est largement interrompue par un collier jaune ant\u00e9rieur.<\/p>\n<\/div><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/onychogomphus-forcipatus-male-accueil-3-3.webp\"><img decoding=\"async\" width=\"1384\" height=\"1204\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/onychogomphus-forcipatus-male-accueil-3-3.webp\" alt=\"Onychogomphus forcipatus m\u00e2le, Le Fief Sauvin (F-49), 19\/06\/2010\" class=\"wp-image-17659 size-full lazyload\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/onychogomphus-forcipatus-male-accueil-3-3.webp 1384w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/onychogomphus-forcipatus-male-accueil-3-3-768x668.webp 768w\" data-sizes=\"(max-width: 1384px) 100vw, 1384px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1384px; --smush-placeholder-aspect-ratio: 1384\/1204;\" \/><\/a><\/figure><\/div>\n\n\n\n<div style=\"height:16px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Attention, le \u00ab\u00a0crit\u00e8re\u00a0\u00bb du triangle anal \u00e0 3 cellules n&rsquo;est pas fiable !<br>En France, on ne peut confondre l&rsquo;Onychogomphe \u00e0 pinces qu&rsquo;avec O. uncatus (plus sombre et aux yeux bleus) qui montre le m\u00eame type d&rsquo;appendices anaux. Je rappelle donc les diff\u00e9rences les plus visibles sur une photo : <\/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\/Onychogomphus-forcipatus-vs-uncatus.webp\"><img decoding=\"async\" width=\"1916\" height=\"897\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Onychogomphus-forcipatus-vs-uncatus.webp\" alt=\"Comparaison et identification des Onychogomphus\" class=\"wp-image-17660 lazyload\" style=\"--smush-placeholder-width: 1916px; --smush-placeholder-aspect-ratio: 1916\/897;width:770px;height:auto\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Onychogomphus-forcipatus-vs-uncatus.webp 1916w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Onychogomphus-forcipatus-vs-uncatus-768x360.webp 768w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Onychogomphus-forcipatus-vs-uncatus-1536x719.webp 1536w\" data-sizes=\"(max-width: 1916px) 100vw, 1916px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Onychogomphus forcipatus \u2642 compar\u00e9 \u00e0 Onychogomphus uncatus \u2642<\/figcaption><\/figure>\n\n\n\n<p>Les <strong>femelles<\/strong>, \u00e0 l&rsquo;abdomen plus large, peuvent \u00eatre s\u00e9par\u00e9es de O. uncatus par les m\u00eames d\u00e9tails.<\/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\/onychogomphus-forcipatus-femelle-1g.jpg\"><img decoding=\"async\" width=\"1751\" height=\"1204\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/onychogomphus-forcipatus-femelle-1g.jpg\" alt=\"Onychogomphus forcipatus femelle, Parc du confluent Portet sur Garonne (France-31), 19\/07\/2019\" class=\"wp-image-7885 lazyload\" style=\"--smush-placeholder-width: 1751px; --smush-placeholder-aspect-ratio: 1751\/1204;width:565px;height:auto\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/onychogomphus-forcipatus-femelle-1g.jpg 1751w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/onychogomphus-forcipatus-femelle-1g-768x528.jpg 768w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/onychogomphus-forcipatus-femelle-1g-1536x1056.jpg 1536w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/\/onychogomphus-forcipatus-femelle-1g-1200x825.jpg 1200w\" data-sizes=\"(max-width: 1751px) 100vw, 1751px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Onychogomphus forcipatus femelle, Portet sur Garonne (France-31), 19\/07\/2019<\/figcaption><\/figure>\n\n\n\n<p>Mais, ne portant pas d&rsquo;appendices anaux spectaculaires, elles sont souvent confondues avec d&rsquo;autres Gomphidae. Cependant, elles portent sur la face dorsale de chaque segment de l&rsquo;abdomen un motif large, jaune, compos\u00e9 de 2 parties, la plus ant\u00e9rieure \u00e9tant \u00e9vas\u00e9e. Les autres femelles Gomphidae, sauf Ophiogomphus cecilia tr\u00e8s diff\u00e9rente, portent un motif \u00e9troit, \u00e0 peine dilat\u00e9 ant\u00e9rieurement ; voir <a href=\"https:\/\/www.meslibellules.fr\/blog\/2021\/08\/02\/separer-les-femelles-onychogomphus-des-autres-gomphidae\/\">ici<\/a>.<\/p>\n\n\n\n<h5><span style=\"text-decoration: underline;\">Habitat et distribution g\u00e9ographique<\/span><\/h5>\n\n\n\n<p>Il se pla\u00eet sur les eaux courantes, m\u00eame rapides, les rivi\u00e8res, les fleuves, mais on le rencontre r\u00e9guli\u00e8rement aux abords des grands \u00e9tangs ou lacs, pour peu qu&rsquo;un ruisseau ou une \u00e9cluse agite l&rsquo;eau. <br>C&rsquo;est essentiellement une esp\u00e8ce de plaine et de pi\u00e9monts avec un record d&rsquo;altitude \u00e0 plus de 2700 m.<br><a href=\"https:\/\/atlas-odonates.insectes.org\/odonates-de-france\/onychogomphus-forcipatus\">Atlas dynamique des Odonates de France<\/a><br><br>On rel\u00e8ve sa pr\u00e9sence presque partout en France, rare cependant au nord (et en montagne), et tr\u00e8s dispers\u00e9e le long de la c\u00f4te nord-ouest.<br>Absente de Grande-Bretagne (o\u00f9 on le nomme Small Pincertail), sa distribution s&rsquo;\u00e9tend du Maghreb au sud de la Su\u00e8de et de la Norv\u00e8ge. \u00c0 l&rsquo;est, tr\u00e8s diss\u00e9min\u00e9e, elle atteint au nord l&rsquo;ouest de la Sib\u00e9rie et au sud l&rsquo;Iran. \u00c0 noter que l&rsquo;on d\u00e9crit trois <em>sous-esp\u00e8ces<\/em>, mais que la g\u00e9n\u00e9tique n&rsquo;a montr\u00e9 aucune diff\u00e9rence entre ce qu&rsquo;il vaut donc mieux appeler trois formes, <em>forcipatus forcipatus<\/em>, <em>forcipatus unguiculatus<\/em> et <em>forcipatus albotibialis<\/em>. La distribution dont je rends compte couvre ces trois formes r\u00e9unies.<br><a href=\"https:\/\/www.iucnredlist.org\/species\/165489\/19152175#geographic-range\">IUCN Red List<\/a><\/p>\n\n\n\n<h5><span style=\"text-decoration: underline;\">P\u00e9riode de vol<\/span><\/h5>\n\n\n\n<p>C&rsquo;est typiquement un odonate de l&rsquo;\u00e9t\u00e9 avec une abondance maximale en juillet, mais dans le sud de son aire, on peut le trouver d\u00e8s avril, et certains sujets r\u00e9sistent jusqu&rsquo;\u00e0 la fin du mois de septembre.<br>Dans mon Maine-et-Loire, on le trouve de mi-mai \u00e0 fin ao\u00fbt, avec un pic en juillet.<\/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\/onychogomphus-forcipatus-male-emergent-1.webp\"><img decoding=\"async\" width=\"2108\" height=\"1204\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/onychogomphus-forcipatus-male-emergent-1.webp\" alt=\"Smal Pincertail, emergent male, Ancenis (F-44), 15\/06\/2017\" class=\"wp-image-17673 lazyload\" style=\"--smush-placeholder-width: 2108px; --smush-placeholder-aspect-ratio: 2108\/1204;width:595px;height:auto\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/onychogomphus-forcipatus-male-emergent-1.webp 2108w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/onychogomphus-forcipatus-male-emergent-1-768x439.webp 768w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/onychogomphus-forcipatus-male-emergent-1-1536x877.webp 1536w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/onychogomphus-forcipatus-male-emergent-1-2048x1170.webp 2048w\" data-sizes=\"(max-width: 2108px) 100vw, 2108px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Onychogomphus forcipatus m\u00e2le \u00e9mergent, Ancenis (F-44), 15\/06\/2017<\/figcaption><\/figure>\n\n\n\n<h5><span style=\"text-decoration: underline;\">Comportement &#8211; \u00c9cologie<\/span><\/h5>\n\n\n\n<p>Il est thermophile et aime \u00e9merger et se poser sur les rochers, dans le courant, mais on le trouve aussi stationn\u00e9 sur les sentiers pierreux ou sablonneux ou m\u00eame sur les routes. On le trouve par exemple en nombre sur les enrochements des berges de la Loire. Il est agressif avec ses cong\u00e9n\u00e8res, mais \u00e0 distance de l&rsquo;eau, il est plus sociable et plusieurs individus peuvent voisiner sans incidents ; j&rsquo;ai le souvenir d&rsquo;en avoir vu, tr\u00e8s nombreux, tous les m\u00e8tres, sur des fils m\u00e9talliques de cl\u00f4ture.<br>Les accouplements sont rarement observ\u00e9s, sans doute en vol et assez haut, se terminent rarement pos\u00e9s. Les pontes sont peu communes, je n&rsquo;en ai jamais vu, seulement celle d&rsquo;O. uncatus qui largue ses \u0153ufs par de brefs coups d&rsquo;abdomen au-dessus de l&rsquo;eau.<br>La phase larvaire dure 2 \u00e0 5 ans en fonction du climat.<br>L&rsquo;\u00e9mergence est spectaculairement rapide, la croissance de l&rsquo;abdomen et des ailes, le durcissement de la cuticule peuvent ne prendre que 20 minutes avant l&rsquo;envol.<\/p>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h5><span style=\"text-decoration: underline;\">\u00c9tymologie<\/span><\/h5>\n\n\n\n<p>L&rsquo;esp\u00e8ce a \u00e9t\u00e9 d\u00e9crite par <em>Carl von Linn\u00e9<\/em> (1758), conform\u00e9ment \u00e0 son invention qui va r\u00e9volutionner la zoologie, en adoptant sa nomenclature binomiale, sous le nom de <em>Libellula forcipata<\/em>.<br><strong>Onychogomphus<\/strong> (Selys, 1854), du grec <em>onycho<\/em>, pour <em>ongle<\/em> ou <em>griffe<\/em>, et de Gomphus. <em>Gomphus<\/em>,&nbsp;vient, lui,d\u2019un mot grec qui signifie&nbsp;<em>cheville<\/em>&nbsp;ou&nbsp;<em>boulon<\/em>, en r\u00e9f\u00e9rence \u00e0 la forme de l\u2019abdomen (de la plupart des esp\u00e8ces), qui ressemble \u00e0 une&nbsp;<em>cheville pour assembler les bateaux<\/em>. C&rsquo;est donc un Gomphus dot\u00e9 d&rsquo;un ongle ou d&rsquo;une griffe, en r\u00e9f\u00e9rence \u00e0 ses appendices anaux, sans doute \u00e0 sa lame <a href=\"https:\/\/meslibellules.fr\/pagesweb\/divers\/glossaire.php\">supra-anale<\/a>. <br><strong>Forcipatus<\/strong>, du latin <em>f<\/em>orceps, pour <em>pince<\/em> et du suffixe <em>atus<\/em> signifiant <em>dot\u00e9 de<\/em>. <br>Nous avons ainsi un Gomphus dot\u00e9 d&rsquo;une griffe et muni d&rsquo;une pince.<\/p>\n\n\n\n<p><\/p>\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\/pagesweb\/gomphidae\/onychogomphus\/forcipatus\/forcipatus_male1.php\">M\u00e2le<\/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\/gomphidae\/onychogomphus\/forcipatus\/forcipatus_femelle1.php\">Femelle<\/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\/gomphidae\/onychogomphus\/forcipatus\/onychogomphus-forcipatus-emergence-male-1.php\">Emergence m\u00e2le<\/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\/2020\/08\/06\/onychogomphus-forcipatus-emergence-et-emission-dhemolymphe\/\">Emergence femelle<\/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\/gomphidae\/onychogomphus\/forcipatus\/onychogomphus-forcipatus-vs-uncatus-1.php\">O. forcipatus vs uncatus<\/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\/gomphidae\/onychogomphus\/forcipatus\/onychogomphus-forcipatus-oeil.php\">L&rsquo;oeil<\/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\/gomphidae\/onychogomphus\/forcipatus\/onychogomphus-forcipatus-aile-male-femelle.php\">Aile \u2642 &amp; \u2640<\/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\/2024\/08\/06\/predation-par-onychogomphus-forcipatus\/\">Pr\u00e9dation<\/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\/2021\/02\/07\/onychogomphus-forcipatus-galerie\/\">Galerie<\/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\/2021\/02\/04\/onychogomphus-forcipatus-les-pinces-ouvertes\/\">Curiosit\u00e9s<\/a><\/div>\n<\/div>\n\n\n\n<div style=\"height:37px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><a href=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Linnaeus-1758.webp\"><img decoding=\"async\" width=\"1973\" height=\"591\" data-src=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Linnaeus-1758.webp\" alt=\"Description de Libellula forcipata, Linnaeus, 1758\" class=\"wp-image-27740 lazyload\" style=\"--smush-placeholder-width: 1973px; --smush-placeholder-aspect-ratio: 1973\/591;aspect-ratio:3.3384924047004874;width:724px;height:auto\" data-srcset=\"https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Linnaeus-1758.webp 1973w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Linnaeus-1758-768x230.webp 768w, https:\/\/www.meslibellules.fr\/blog\/wp-content\/uploads\/Linnaeus-1758-1536x460.webp 1536w\" data-sizes=\"(max-width: 1973px) 100vw, 1973px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><figcaption class=\"wp-element-caption\">Description de Libellula forcipata, Linnaeus, 1758<\/figcaption><\/figure>\n\n\n\n<p>On note dans cette br\u00e8ve description l&rsquo;utilisation de nombreuses abr\u00e9viations, que seuls les scientifiques \u00e9rudits pouvaient comprendre. Par exemple <em>Fn. svec. 771<\/em> , qui signifie qu&rsquo;il a d\u00e9j\u00e0 d\u00e9crit cette esp\u00e8ce sous le num\u00e9ro 771 (sans nom binomial !) dans <em>Fauna Svecica<\/em> (Faune de Su\u00e8de), ouvrage qu&rsquo;il a publi\u00e9 en 1746. Ou  bien pire : <em>Reaum. ins. 4. t. 10. f. 4. \/ 6. t. 35. f. 5<\/em>  qui indique, dans un code obscur, que Ren\u00e9-Antoine Ferchault de R\u00e9aumur a illustr\u00e9 l&rsquo;esp\u00e8ce dans son colossal <em>M\u00e9moires pour servir \u00e0 l&rsquo;histoire des insectes<\/em>, et donne les num\u00e9ros de tomes, de planches (t. pour tabula) et de figures (f.). Je dois dire que j&rsquo;ai pass\u00e9 quelques heures \u00e0 comprendre et \u00e0 chercher ces planches dans R\u00e9aumur sans les trouver.<br>Il fallait all\u00e9ger le texte au maximum car en 1758 les co\u00fbts du papier, de la composition et de l&rsquo;impression \u00e9taient exorbitants.<\/p>\n\n\n\n<div style=\"height:29px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>Linnaeus, C. (1758).<\/strong> <em>S<\/em><a href=\"https:\/\/www.biodiversitylibrary.org\/item\/10277#page\/566\/mode\/1up\"><em>ystema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis<\/em>.<\/a> Tomus I. Editio decima, reformata. Holmiae: Laurentii Salvii. p. 545.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Description &#8211; Identification Le m\u00e2le Onychogomphus forcipatus, comme tous nos Gomphidae fran\u00e7ais (sauf O. cecilia) est jaune et noir avec des yeux verts ou bleus (ssp. sudiste unguiculatus). Il mesure 46 \u00e0 50 mm (50 mm est la longueur d&rsquo;une allumette).Il se distingue des autres Gomphidae par ses appendices anaux en \u00ab\u00a0pince \u00e0 sucre\u00a0\u00bb et, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","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":""},"class_list":["post-17650","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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