Two new species of Pergalumna (Acari, Oribatida, Galumnidae) from Costa Rica, including a key to all species of the genus from the Neotropical region

Abstract

Two new species of oribatid mites of the genus Pergalumna (Oribatida, Galumnidae), P. elongatiporosa sp. n. and P. striatiprodorsum sp. n., are described from leaf litter of a secondary forest in Costa Rica. Pergalumna elongatiporosa sp. n. is most similar morphologically to P. horvathorum P. Balogh, 1997 and P. sura P. Balogh, 1997, however, it differs from both by the body size, body surface ornamentation and morphology of notogastral porose areas A1 and A3. Pergalumna striatiprodorsum sp. n. is most similar morphologically to P. hawaiiensis hawaiiensis (Jacot, 1934) and P. strigulata Mahunka, 1978, however, it differs from P. hawaiiensis by the length of interlamellar setae and surface ornamentation of the prodorsum; from P. strigulata by the surface of ornamentation of the notogaster, length of interlamellar setae and morphology of bothridial setae. An identification key to known species of Pergalumna from the Neotropical region is given.

Oribatid mites in agricultural and natural soils: a case study of vertical distribution

“…Permanent preparations were done using Hoyer's liquid as mounting medium, dried at 45°C. Species were identified with group-specific keys (Balogh & Balogh 1988;Subias & Balogh 1989;Ermilov et al 2014). In addition, one soil sample was collected from each layer of each ecosystem for the determination of pH, electrical conductivity (EC), organic carbon, nitrogen, true density and soil texture.…”

New and interesting species of the genera Galumna and Pergalumna (Acari, Oribatida, Galumnidae) from the Montagne d'Ambre National Park, Madagascar

“…The subgeneric diagnoses of Galumna (Galumna) and Pergalumna (Pergalumna) were presented by Ermilov & Klimov (2017). Identification keys to many species of Galumna and Pergalumna from different geographical regions are given by Ermilov et al (2014Ermilov et al ( , 2015a, Ermilov & Starý (2017, Ermilov & Friedrich (2019).…”

Peruvian oribatid mites (Acari, Oribatida) from the German Biological Expedition, with description of a new species of the genus Pergalumna

“…Currently, it comprises more than 130 species having a cosmopolitan distribution collectively (Subías 2004, updated 2014). The generic characters of the genus are summarized by Ermilov et al (2013a), and an identification key to known species from the Neotropical region was presented by Ermilov et al (2014a).…”