A new species of Notogalumna from the canopy and another new edaphic species of Galumnopsis (Acari: Oribatida: Galumnoidea) from the tropical rainforest of Los Tuxtlas, Mexico Author Villagomez, Fernando Laboratorio de Ecología y sistemática de Microartrópodos, Facultad de Ciencias, Universidad Nacional Autónoma de México. 04510, CD. MX., México. & Posgrado enCienciasBiológicas. UnidaddePosgrado. EdificioD. UniversidadNacionalAutónoma deMéxico. 04510, Cd. Mx., México. troglolaphysa @ hotmail. com; https: // orcid. org / 0000 - 0001 - 9097 - 6813 Author Palacios-Vargas, José G. 0000-0001-9097-6813 Laboratorio de Ecología y sistemática de Microartrópodos, Facultad de Ciencias, Universidad Nacional Autónoma de México. 04510, CD. MX., México. troglolaphysa@hotmail.com Author Páez, Jair 0000-0002-4643-2760 Laboratorio de Ecología y sistemática de Microartrópodos, Facultad de Ciencias, Universidad Nacional Autónoma de México. 04510, CD. MX., México. & jd. pl @ ciencias. unam. mx; https: // orcid. org / 0000 - 0002 - 4643 - 2760 jd.pl@ciencias.unam.mx text Zootaxa 2021 2021-08-11 5020 1 171 183 journal article 10.11646/zootaxa.5020.1.9 1175-5326 5223150 38CFFBEF-D83B-439D-B5B0-17ED8F0C5F42 Key for the known species of Notogalumna * 1 Four pairs of notogastric porose areas..................................................................... 2 1’ Three pairs of notogastric porose areas.................................................................... 4 2 Dorsosejugal suture complete, seta in longer than other prodorsal setae.............. N . hexagona ( Balogh, 1960 ) . Angola 2’ Dorsosejugal suture interrupted or absent, seta in minute or lacking............................................. 3 3 Seta in absent, lamellar setae longer than rostral, with conspicuous projection behind pteromophs............................................................................................... N . floridae ( Jacot, 1929 ) . U.S.A. 3’ Seta in present but minute, lamellar setae shorter than rostral, without conspicuous projection behind pteromophs................................................................................... N. rickiglesiasi sp. nov. Mexico 4 Presence of a paired porose area postanalis................................................................ 5 4’ Without the presence of a paired porose area postanalis....................................................... 7 5 Setae in inserted between lamellar ridges......... N. lagunaensis Ermilov y Corpuz-Raros, 2015 . Philippines and Vietnam 5’ Seta in inserted between lamellar and sublamellar lines....................................................... 6 6 Lamellar line interrupted, A1 surrounded by three alveoli............ N. foveolata Balakrishnan, 1989 . India and Vietnam 6’ Lamellar line continuous, A1 surrounded by two alveoli...................... N. nortoni Ramani and Haq, 1990 . India 7 Seta ad 3 above anal plate, genital chaetotaxy in 2–4 formulae, notogaster smooth.......................................................................................... N. praetiosa Sellnick, 1959 . Polynesia, India and Borneo 7’ Seta ad 3 lateral to anal plate, genital chaetotaxy in 3–3 formulae, notogaster foveolated................................................................................................... N. africana Mahunka, 1988 . Tanzania