New faunistic and taxonomic data on oribatid mites (Acari, Oribatida) of Peru

Abstract

The present study is based on oribatid mite material (Acari, Oribatida) collected during an expedition to Amazonian Peru in May 2015. A list of identified taxa, including 56 species from 36 genera and 23 families, is presented; of these, eight species (Neoamerioppia phoretica, Ceratorchestes globosus, Truncozetes ecuadoriensis, Drymobates silvicola, Dynatozetes amplus, Scheloribates elegans, Allogalumna antillensis, Galumnopsis secunda), five genera (Drymobates, Dynatozetes, Allogalumna, Sacculogalumna, Galumnopsis) and two families (Drymobatidae, Galumnellidae) are recorded in Peru for the first time, the genus Sacculogalumna is recorded in the Neotropical region for the first time. A new species of Sacculogalumna (Galumnidae) is described; S. hexasacculata Ermilov sp. n. is similar to S. samarensis Ermilov et Corpuz-Raros, 2017, but differs by the presence of striate pattern on dorsal and ventral sides of body, rounded rostrum, smooth bothridial setae, complete sejugal suture, short and thin anal and adanal setae, setiform genital and central epimeral setae and two setae on anterior edges of genital plates, and the paraanal position of adanal lyrifissures in females and males.