Three new species of Longior Travassos & Kloss, 1958 (Nematoda Thelastomatoidea: Hystrignathidae) parasites of passalid beetles (Coleoptera Passalidae) from Dominican Republic, Mexico and Colombia Author Morffe, Jans Instituto de Ecología y Sistemática, Carretera Varona 11835 e / Oriente y Lindero, La Habana 19, CP 11900, Calabazar, Boyeros, La Habana, Cuba & Department of Environmental Biology, College of Bioscience & Biotechnology, Chubu University, 1200 Matsumoto, Kasugai, Aichi 487 - 8501, Japan Author García, Nayla 0000-0002-3979-8086 Instituto de Ecología y Sistemática, Carretera Varona 11835 e / Oriente y Lindero, La Habana 19, CP 11900, Calabazar, Boyeros, La Habana, Cuba & nayla @ ecologia. cu; https: // orcid. org / 0000 - 0002 - 3979 - 8086 nayla@ecologia.cu Author Adams, Byron J. Department of Biology and Monte L. Bean Museum, Brigham Young University, Provo, UT 84602, USA Author Hasegawa, Koichi 0000-0002-9968-8129 Department of Environmental Biology, College of Bioscience & Biotechnology, Chubu University, 1200 Matsumoto, Kasugai, Aichi 487 - 8501, Japan & koichihasegawa @ isc. chubu. ac. jp; https: // orcid. org / 0000 - 0002 - 9968 - 8129 koichihasegawa@isc.chubu.ac.jp text Zootaxa 2020 2020-11-09 4877 1 125 147 journal article 8015 10.11646/zootaxa.4877.1.5 8ad18705-edc8-4ee2-9054-de82643e46da 1175-5326 4423935 2930F98B-0EBD-45BF-B596-8DE8149A1C7C Key to the known males of the genus Longior 1a. Cuticular swelling present next to the head...................................................... L. surieli n. sp. 1b. Cuticular swelling not present next to the head.............................................................. 2 2a. Demanian indexes a>20 and c<40.............................................................. L. longicollis 2b. Demanian indexes a<20 and c>40........................................................................ 3 3a. Tail tip with a hammer-like appearance due to a ventral bending and a dorsal knob-like protuberance.... L. zumpimito n. sp. 3b. Tail tip without a hammer-like appearance due to a ventral bending and a dorsal knob-like protuberance................ 4 4a. Nerve ring encircling procorpus at ca. 35% of its length................................................ L. longior 4b. Nerve ring encircling procorpus at ca. 40%–45% of its length.................................................. 5 5a. Excretory pore located at ca. half of the body-width posterior to the basal bulb....................... L. lamothei n. sp. 5b. Excretory pore located at ca. one body-width posterior to the basal bulb................................... L. similis