https://mapress.com/jib <p><strong>Journal of Insect Biodiversity</strong> (<strong>JIB</strong>) is an international, peer-reviewed scientific journal of Biodiversity Application &amp; Research Center of the Atatürk University. <span lang="EN-GB">JIB is dedicated to publishing high-quality novel </span><span lang="EN-GB">scientific data </span><span lang="EN-GB">on <strong>insect biodiversity</strong>. The aims</span> of this journal are to share and disseminate novel scientific information on the discovery, description, and conservation of insect diversity. </p> Magnolia Press en-US Journal of Insect Biodiversity 2538-1318 Copyright is retained by Magnolia press LTD. https://mapress.com/jib/article/view/2021.30.1.1 <p>The genus <em>Oncocephala</em> Agassiz, 1846 (Coleoptera: Chrysomelidae: Cassidinae: Oncocephalini) is reviewed for Africa, except Madagascar. Twenty-four species are treated. Two new synonyms were proposed, <em>Oncocephala kolbei</em> Gestro, 1899a is synonymized with <em>O. promontorii</em> Péringuey, 1898 and <em>O. scabrosa</em> Gestro, 1905 is synonymized with <em>O. severinii</em> Gestro, 1899(1901). Six new species are proposed: <em>Oncocephala susanstainesae </em>Calcetas, Staines &amp; Adorada <strong>sp. nov.</strong> from Namibia<em>, Oncocephala deleoni </em>Calcetas, Staines and Adorada <strong>sp. nov.</strong> from the Democratic Republic of the Congo<em>, Oncocephala camachoi </em>Calcetas, Staines &amp; Adorada <strong>sp. nov.</strong> from Cameroon<em>, Oncocephala eborai </em>Calcetas, Staines &amp; Adorada <strong>sp. nov.</strong> from Equatorial Guinea<em>, Oncocephala dimaculanganae </em>Calcetas, Staines &amp; Adorada <strong>sp. nov.</strong> from Cameroon and <em>Oncocephala demesai </em>Calcetas, Staines and Adorada <strong>sp. nov.</strong> from Togo<em>. Oncocephala methneri</em> Uhmann, 1928 and <em>O. madoni</em> Pic, 1941 are treated as <em>incerte sedis</em>. The genus <em>Oncocephala</em> in Africa is divided into seven species groups (Gestroi, Perrieri, Insignis, Senegalensis, Promentorii, Cuneata and Angusticollis) based on the similarity of their elytral characters. A key to the species groups and species of <em>Oncocephala</em> is provided.</p> ORLANDO A. CALCETAS CHARLES L. STAINES JESSAMYN R. ADORADA VENUS J. CALILUNG BARBARA L. CAOILI SERLIE B. JAMIAS Copyright (c) 2021 Magnolia press 2021-12-23 2021-12-23 30 1 1–54 1–54 10.12976/jib/2021.30.1.1