{"id":12697,"date":"2026-06-20T12:58:22","date_gmt":"2026-06-20T12:58:22","guid":{"rendered":"https:\/\/dev.iita.org\/news-item\/discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics\/"},"modified":"2026-06-29T17:05:14","modified_gmt":"2026-06-29T17:05:14","slug":"discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics","status":"publish","type":"news-item","link":"https:\/\/iita.org\/fr\/news-item\/discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics\/","title":{"rendered":"Discovery of a second New World hoverfly newly introduced into the Afrotropics"},"content":{"rendered":"In the framework of collaboration between IITA and the\u00a0Royal Museum for Central Africa, Tervuren<\/u><\/a>, Belgium, hoverflies preserved in IITA\u2019s biodiversity center at Cotonou were recently studied using molecular biology techniques in support of morphological identification. Surprisingly some specimens from Benin and Cameroon could not be identified using existing morphological keys for Syrphidae of the Afrotropical region.\n
\n\n\"A<\/a>\n

A second New World hoverfly,\u00a0Toxomerus \u2013 floralis<\/em>\u00a0(Fabricius) (Diptera: Syrphidae),recorded from the Old World, with description of larval pollen-feeding ecology. Zootaxa: 4044 (4): 567\u2013576.<\/p>\n\n<\/div>\nDNA sequencing and comparison with publicly available\u00a0barcode data<\/a><\/u>\u00a0revealed the presence in Africa of a species originating from South America. While subsequent collection efforts showed that the species named\u00a0Toxomerus floralis\u00a0<\/em>(Fabricius) is currently widely spread in Togo, Benin, Nigeria (including the IITA campus at Ibadan), and Cameroon, the full extent of its geographic distribution within the African continent remains to be determined.\n\nThis is only the second known established introduction of a non-African hoverfly species in the Afrotropics.\n\nInterestingly, the larvae of this species feed on pollen, which is uncommon within the subfamily Syrphinae. Moreover, it is the only Syrphinae species of which the larvae feed on pollen of at least two plant species from different families (Cyperaceae and Rubiaceae). This example illustrates well the practical application of molecular techniques as a reliable identification tool and underpins the utility of any contribution to such a globally accessible database. (Please contact\u00a0g.goergen@cgiar.org<\/a><\/u>\u00a0for full scientific article).","protected":false},"excerpt":{"rendered":"

In the framework of collaboration between IITA and the Royal Museum for Central Africa, Tervuren, Belgium, hoverflies preserved in IITA\u2019s biodiversity center at Cotonou<\/p>","protected":false},"featured_media":17636,"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":"","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 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-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":"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":""},"mobile":{"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":""}}},"tags":[2360],"science-area":[],"program":[],"location":[32],"news-type":[],"hub":[61],"crop":[],"impact-areas":[],"item-year":[194],"class_list":["post-12697","news-item","type-news-item","status-publish","has-post-thumbnail","hentry","tag-bulletin-no-2309hoverfly","location-nigeria","hub-western-africa","item-year-194"],"yoast_head":"\nDiscovery of a second New World hoverfly newly introduced into the Afrotropics - IITA<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/iita.org\/fr\/news-item\/discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Discovery of a second New World hoverfly newly introduced into the Afrotropics - IITA\" \/>\n<meta property=\"og:description\" content=\"In the framework of collaboration between IITA and the Royal Museum for Central Africa, Tervuren, Belgium, hoverflies preserved in IITA\u2019s biodiversity center at Cotonou\" \/>\n<meta property=\"og:url\" content=\"https:\/\/iita.org\/fr\/news-item\/discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics\/\" \/>\n<meta property=\"og:site_name\" content=\"IITA\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/IITA.CGIAR\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-29T17:05:14+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/iita.org\/wp-content\/uploads\/2026\/06\/Toxomerus-floralis-female-dorsal_1024.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"642\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@IITA_CGIAR\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/iita.org\\\/news-item\\\/discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics\\\/\",\"url\":\"https:\\\/\\\/iita.org\\\/news-item\\\/discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics\\\/\",\"name\":\"Discovery of a second New World hoverfly newly introduced into the Afrotropics - IITA\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/iita.org\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/iita.org\\\/news-item\\\/discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/iita.org\\\/news-item\\\/discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/iita.org\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/Toxomerus-floralis-female-dorsal_1024.jpg\",\"datePublished\":\"2026-06-20T12:58:22+00:00\",\"dateModified\":\"2026-06-29T17:05:14+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/iita.org\\\/news-item\\\/discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/iita.org\\\/news-item\\\/discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/iita.org\\\/news-item\\\/discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics\\\/#primaryimage\",\"url\":\"https:\\\/\\\/iita.org\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/Toxomerus-floralis-female-dorsal_1024.jpg\",\"contentUrl\":\"https:\\\/\\\/iita.org\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/Toxomerus-floralis-female-dorsal_1024.jpg\",\"width\":1024,\"height\":642},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/iita.org\\\/news-item\\\/discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/iita.org\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"News\",\"item\":\"https:\\\/\\\/iita.org\\\/news-item\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Discovery of a second New World hoverfly newly introduced into the Afrotropics\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/iita.org\\\/#website\",\"url\":\"https:\\\/\\\/iita.org\\\/\",\"name\":\"IITA\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/iita.org\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/iita.org\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/iita.org\\\/#organization\",\"name\":\"International Institute of Tropical Agriculture\",\"url\":\"https:\\\/\\\/iita.org\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/iita.org\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/iita.org\\\/wp-content\\\/uploads\\\/2025\\\/07\\\/IITA-Logo-finalll.png\",\"contentUrl\":\"https:\\\/\\\/iita.org\\\/wp-content\\\/uploads\\\/2025\\\/07\\\/IITA-Logo-finalll.png\",\"width\":1788,\"height\":591,\"caption\":\"International Institute of Tropical Agriculture\"},\"image\":{\"@id\":\"https:\\\/\\\/iita.org\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/IITA.CGIAR\",\"https:\\\/\\\/x.com\\\/IITA_CGIAR\",\"http:\\\/\\\/www.linkedin.com\\\/company\\\/iita\",\"http:\\\/\\\/www.youtube.com\\\/user\\\/IITAPUBLISHING\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Discovery of a second New World hoverfly newly introduced into the Afrotropics - IITA","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/iita.org\/fr\/news-item\/discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics\/","og_locale":"fr_FR","og_type":"article","og_title":"Discovery of a second New World hoverfly newly introduced into the Afrotropics - IITA","og_description":"In the framework of collaboration between IITA and the Royal Museum for Central Africa, Tervuren, Belgium, hoverflies preserved in IITA\u2019s biodiversity center at Cotonou","og_url":"https:\/\/iita.org\/fr\/news-item\/discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics\/","og_site_name":"IITA","article_publisher":"https:\/\/www.facebook.com\/IITA.CGIAR","article_modified_time":"2026-06-29T17:05:14+00:00","og_image":[{"width":1024,"height":642,"url":"https:\/\/iita.org\/wp-content\/uploads\/2026\/06\/Toxomerus-floralis-female-dorsal_1024.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_site":"@IITA_CGIAR","twitter_misc":{"Dur\u00e9e de lecture estim\u00e9e":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/iita.org\/news-item\/discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics\/","url":"https:\/\/iita.org\/news-item\/discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics\/","name":"Discovery of a second New World hoverfly newly introduced into the Afrotropics - IITA","isPartOf":{"@id":"https:\/\/iita.org\/#website"},"primaryImageOfPage":{"@id":"https:\/\/iita.org\/news-item\/discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics\/#primaryimage"},"image":{"@id":"https:\/\/iita.org\/news-item\/discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics\/#primaryimage"},"thumbnailUrl":"https:\/\/iita.org\/wp-content\/uploads\/2026\/06\/Toxomerus-floralis-female-dorsal_1024.jpg","datePublished":"2026-06-20T12:58:22+00:00","dateModified":"2026-06-29T17:05:14+00:00","breadcrumb":{"@id":"https:\/\/iita.org\/news-item\/discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/iita.org\/news-item\/discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/iita.org\/news-item\/discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics\/#primaryimage","url":"https:\/\/iita.org\/wp-content\/uploads\/2026\/06\/Toxomerus-floralis-female-dorsal_1024.jpg","contentUrl":"https:\/\/iita.org\/wp-content\/uploads\/2026\/06\/Toxomerus-floralis-female-dorsal_1024.jpg","width":1024,"height":642},{"@type":"BreadcrumbList","@id":"https:\/\/iita.org\/news-item\/discovery-of-a-second-new-world-hoverfly-newly-introduced-into-the-afrotropics\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/iita.org\/"},{"@type":"ListItem","position":2,"name":"News","item":"https:\/\/iita.org\/news-item\/"},{"@type":"ListItem","position":3,"name":"Discovery of a second New World hoverfly newly introduced into the Afrotropics"}]},{"@type":"WebSite","@id":"https:\/\/iita.org\/#website","url":"https:\/\/iita.org\/","name":"IITA","description":"","publisher":{"@id":"https:\/\/iita.org\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/iita.org\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/iita.org\/#organization","name":"Institut International d'Agriculture Tropicale","url":"https:\/\/iita.org\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/iita.org\/#\/schema\/logo\/image\/","url":"https:\/\/iita.org\/wp-content\/uploads\/2025\/07\/IITA-Logo-finalll.png","contentUrl":"https:\/\/iita.org\/wp-content\/uploads\/2025\/07\/IITA-Logo-finalll.png","width":1788,"height":591,"caption":"International Institute of Tropical Agriculture"},"image":{"@id":"https:\/\/iita.org\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/IITA.CGIAR","https:\/\/x.com\/IITA_CGIAR","http:\/\/www.linkedin.com\/company\/iita","http:\/\/www.youtube.com\/user\/IITAPUBLISHING"]}]}},"_links":{"self":[{"href":"https:\/\/iita.org\/fr\/wp-json\/wp\/v2\/news-item\/12697","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/iita.org\/fr\/wp-json\/wp\/v2\/news-item"}],"about":[{"href":"https:\/\/iita.org\/fr\/wp-json\/wp\/v2\/types\/news-item"}],"version-history":[{"count":6,"href":"https:\/\/iita.org\/fr\/wp-json\/wp\/v2\/news-item\/12697\/revisions"}],"predecessor-version":[{"id":21135,"href":"https:\/\/iita.org\/fr\/wp-json\/wp\/v2\/news-item\/12697\/revisions\/21135"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/iita.org\/fr\/wp-json\/wp\/v2\/media\/17636"}],"wp:attachment":[{"href":"https:\/\/iita.org\/fr\/wp-json\/wp\/v2\/media?parent=12697"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/iita.org\/fr\/wp-json\/wp\/v2\/tags?post=12697"},{"taxonomy":"science-area","embeddable":true,"href":"https:\/\/iita.org\/fr\/wp-json\/wp\/v2\/science-area?post=12697"},{"taxonomy":"program","embeddable":true,"href":"https:\/\/iita.org\/fr\/wp-json\/wp\/v2\/program?post=12697"},{"taxonomy":"location","embeddable":true,"href":"https:\/\/iita.org\/fr\/wp-json\/wp\/v2\/location?post=12697"},{"taxonomy":"news-type","embeddable":true,"href":"https:\/\/iita.org\/fr\/wp-json\/wp\/v2\/news-type?post=12697"},{"taxonomy":"hub","embeddable":true,"href":"https:\/\/iita.org\/fr\/wp-json\/wp\/v2\/hub?post=12697"},{"taxonomy":"crop","embeddable":true,"href":"https:\/\/iita.org\/fr\/wp-json\/wp\/v2\/crop?post=12697"},{"taxonomy":"impact-areas","embeddable":true,"href":"https:\/\/iita.org\/fr\/wp-json\/wp\/v2\/impact-areas?post=12697"},{"taxonomy":"item-year","embeddable":true,"href":"https:\/\/iita.org\/fr\/wp-json\/wp\/v2\/item-year?post=12697"}],"curies":[{"name":"bien jou\u00e9","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}