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Aspects of its biology are documented extensively in the literature; however, knowledge of <jats:italic>P. clavata<\/jats:italic> internal morphology, specifically of exocrine glands, is restricted to the venom apparatus. The objective of this study was to describe the mandibular gland morphology of <jats:italic>P. clavata<\/jats:italic> workers. The mandibular gland is composed of a reservoir connected to a cluster of Type III secretory cells with cytoplasm rich in mitochondria and lipid droplets, similar to that of other ants. Notably, the glandular secretion is rich in protein and has a solid aspect. This is the first morphological description of the mandibular gland of <jats:italic>P. clavata<\/jats:italic>.<\/jats:p><\/jats:sec><jats:sec><jats:title>Research Highlights<\/jats:title><jats:p>This study presents the morphological description of the mandibular gland of <jats:italic>Paraponera clavata<\/jats:italic> (Hymenoptera: Paraponerinae). Singular characteristics of the gland are described: the glandular secretion is rich in protein and has a solid aspect.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jemt.23242","type":"journal-article","created":{"date-parts":[[2019,3,22]],"date-time":"2019-03-22T12:02:57Z","timestamp":1553256177000},"page":"941-948","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Morphology of the mandibular gland of the ant <i>Paraponera clavata<\/i> (Hymenoptera: Paraponerinae)"],"prefix":"10.1002","volume":"82","author":[{"given":"Thito Thomston","family":"Andrade","sequence":"first","affiliation":[{"name":"Programa de P\u00f3s\u2010Gradua\u00e7\u00e3o em Biodiversidade, Ambiente e Sa\u00fade, Departamento de Biologia e Qu\u00edmica Universidade Estadual do Maranh\u00e3o  Caxias Maranh\u00e3o Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wagner Gonzaga","family":"Gon\u00e7alves","sequence":"additional","affiliation":[{"name":"Departamento de Biologia Geral Universidade Federal de Vi\u00e7osa  Vi\u00e7osa Minas Gerais Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0477-4252","authenticated-orcid":false,"given":"Jos\u00e9 Eduardo","family":"Serr\u00e3o","sequence":"additional","affiliation":[{"name":"Departamento de Biologia Geral Universidade Federal de Vi\u00e7osa  Vi\u00e7osa Minas Gerais Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Luiza Carla Barbosa","family":"Martins","sequence":"additional","affiliation":[{"name":"Programa de P\u00f3s\u2010Gradua\u00e7\u00e3o em Biodiversidade, Ambiente e Sa\u00fade, Departamento de Biologia e Qu\u00edmica Universidade Estadual do Maranh\u00e3o  Caxias Maranh\u00e3o Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2019,3,22]]},"reference":[{"key":"e_1_2_6_2_1","first-page":"1","article-title":"Combined peptidomic and proteomic analysis of electrically stimulated and manually dissected venom from the South American bullet ant Paraponera clavata","volume":"1","author":"Aili S. 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