Comprehensive treatise of Hevansia and three new genera Jenniferia, Parahevansia and Polystromomyces on spiders in Cordycipitaceae from Thailand Author Mongkolsamrit, Suchada Plant Microbe Interaction Research Team, National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, 12120, Thailand suchada@biotec.or.th Author Noisripoom, Wasana Plant Microbe Interaction Research Team, National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, 12120, Thailand Author Tasanathai, Kanoksri Plant Microbe Interaction Research Team, National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, 12120, Thailand Author Kobmoo, Noppol https://orcid.org/0000-0002-3261-9970 Plant Microbe Interaction Research Team, National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, 12120, Thailand Author Thanakitpipattana, Donnaya Plant Microbe Interaction Research Team, National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, 12120, Thailand Author Khonsanit, Artit Plant Microbe Interaction Research Team, National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, 12120, Thailand Author Petcharad, Booppa Department of Biotechnology, Faculty of Science and Technology, Thammasat University, Pathum Thani, 12120, Thailand Author Sakolrak, Baramee Forest Entomology and Microbiology Research Group, Forest and Plant Conservation Research Office, 61 Department of National Parks, Wildlife and Plant Conservation, Phahonyothin Road, Chatuchak, Bangkok, 10900, Thailand Author Himaman, Winanda Forest Entomology and Microbiology Research Group, Forest and Plant Conservation Research Office, 61 Department of National Parks, Wildlife and Plant Conservation, Phahonyothin Road, Chatuchak, Bangkok, 10900, Thailand text MycoKeys 2022 2022-07-26 91 113 149 http://dx.doi.org/10.3897/mycokeys.91.83091 journal article http://dx.doi.org/10.3897/mycokeys.91.83091 1314-4049-91-113 CF7C54854F6A5FF9A1E51BB07889ED33 Parahevansia Mongkolsamrit & Noisripoom gen. nov. Type species. Parahevansia koratensis (Hywel-Jones) Mongkolsamrit & Noisripoom, comb. nov., Mycol. Res. 100: 1067 (1996). Etymology. Morphologically resembling the genus Hevansia , but being phylogenetically distinct. Description. Asexual morph: Synnemata arising from all parts of host, numerous, simple, brown at the sterile base becoming grey white with fertile part. Conidiogenous cells phialidic producing upper part of the synnemata. Phialides in a monolayer, single on basal lateral cells of synnemata, crowded, obovoid to ellipsoid with distinct necks. Conidia in chain, hyaline, smooth-walled, clavate. Notes. Parahevansia koratensis , the type species of this genus, was originally described as species of Akanthomyces (Hywel-Jones, 1996) and later transferred to Hevansia ( Kepler et al. 2017 ). Our multi-gene phylogenetic analyses supported Parahevansia as a monophyletic clade with strong support (MLB = 100 / BPP = 1.00, Fig. 1 ). Therefore, we introduced Parahevansia as a new genus that accommodates a single species, Pa. koratensis .