{"id":8435,"date":"2026-06-23T21:40:56","date_gmt":"2026-06-23T21:40:56","guid":{"rendered":"https:\/\/pawel.stefanoff.pl\/bugs\/?p=8435"},"modified":"2026-09-04T18:30:43","modified_gmt":"2026-09-04T18:30:43","slug":"2026-06-rhyacophila-caddisflies-with-ancient-lineage-es","status":"publish","type":"post","link":"https:\/\/pawel.stefanoff.pl\/bugs\/es\/posts\/2026-06-rhyacophila-caddisflies-with-ancient-lineage-es\/","title":{"rendered":"Dise\u00f1os ancestrales y refugios de piedra: El mundo de las frig\u00e1neas Rhyacophila"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Mientras que la mayor\u00eda de las larvas de tric\u00f3pteros son famosas por construir estuches port\u00e1tiles de piedra o ramitas, el g\u00e9nero <em>Rhyacophila<\/em> rompe todas las reglas. Perteneciente a uno de los linajes m\u00e1s antiguos del planeta, las larvas de este grupo vagan completamente desnudas, recorriendo el lecho de los r\u00edos sin ninguna armadura sobre sus espaldas. Equipadas con potentes ganchos en el extremo del abdomen para anclarse contra las corrientes r\u00e1pidas, las larvas maduras son voraces cazadoras acu\u00e1ticas que acechan a las ninfas de ef\u00edmera. Algunas especies carecen por completo de branquias externas, por lo que absorben el ox\u00edgeno directamente a trav\u00e9s de su piel, lo que las obliga a vivir en aguas de monta\u00f1a heladas y muy oxigenadas. Solo cuando llega el momento de convertirse en adultos construyen un refugio temporal de peque\u00f1as piedras unidas con seda. Me cruc\u00e9 con este incre\u00edble insecto en un campamento junto al r\u00edo en Finlandia. Asombrosamente, fue una de las tres especies distintas de tric\u00f3pteros perteneciendo a tres familias distintas (!) que observ\u00e9 en ese mismo lugar, concluyendo un viaje de un mes fotografiando polillas por Suecia y Finlandia.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mientras que la mayor\u00eda de las larvas de tric\u00f3pteros son famosas por construir estuches port\u00e1tiles de piedra o ramitas, el [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":8425,"comment_status":"open","ping_status":"open","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-5)","background-image":"","background-repeat":"repeat","background-position":"center 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