Occigamasus, a new genus of pergamasine mites, with description of two new species from the west coast of North America (Parasitiformes: Gamasina: Parasitidae) Author Juvara-Balş, Ilinca Muséum d’histoire naturelle, CP 6434, Genève 6. Switzerland. text Acarologia 2019 2019-12-13 59 4 551 570 http://dx.doi.org/10.24349/acarologia/20194354 journal article 10.24349/acarologia/20194354 2107-7207 5173912 D9D1B3C7-98C9-4284-9F53-8D451D4746E5 Occigamasus makarovae n. sp. Zoobank: 638F2793-AC16-4702-8BBE-A758AC1B6020 Figs. 7 C–D , 8 Type material — U.S.A. , Oregon , Deschutes County : 1 female holotype ; 1 female , 2 males , 2 deutonymphs, paratypes . Proxy Falls , St. NWY, 28 miles SW Sisters , ca. 1000m alt ., from wet moss and deep damp mixed maple-hemlock litter, 19 July 1985 . Diagnosis — Female endogynium a double sack with a median finger-like protrusion and a membrane with two anterolateral denticles; spindle-like epigynial structure long (66–72). Male femoral apophysis thumb-like. Etymology — The species is dedicated to Olga Makarova for her major contributions to systematics of Gamasina families, including Parasitidae . Description — Only the characteristics specific to O. makarovae are described. Chaetotaxy, adenotaxy and poroidotaxy as in the new genus.