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

Sergey G Ermilov,Josef Starý

doi:10.24349/acarologia/20204357

Abstract

This work includes taxonomic and faunistic data on galumnid mites (Oribatida, Galumnidae) belonging to the genera Galumna and Pergalumna collected from the Montagne d'Ambre National Park, North Madagascar. Two new species are described: Galumna sandormahunkai n. sp. differs from its closest species, Galumna sphagni by the larger body size, the presence of strongly protruding rostrum, lanceolate, pointed apically bothridial setae, the direction of lamellar lines, and the absence of median pore; Pergalumna janosbaloghi n. sp. differs from the most similar species, Pergalumna aegra, by the smaller body size and the presence of long lamellar setae and elongate, distinctly or slightly triangular porose areas Aa. Galumna granalata and Pergalumna amamiensis are recorded in the Ethiopian region for the first time; Pergalumna conspicua and P. frater are recorded in Madagascar for the first time.

Highlights

This work is based on oribatid mite (Acari, Oribatida) material, which was collected from the Montagne d’Ambre National Park (Madagascar), and includes data on the genera Galumna Heyden, 1826 and Pergalumna Grandjean, 1936 of the family Galumnidae
The primary goal of this paper is to describe these new species and to provide the list of identified species
Galumna was proposed by Heyden (1826), with Notaspis alatus Hermann, 1804 as type species

Summary

Introduction

This work is based on oribatid mite (Acari, Oribatida) material, which was collected from the Montagne d’Ambre National Park (Madagascar), and includes data on the genera Galumna Heyden, 1826 and Pergalumna Grandjean, 1936 of the family Galumnidae.During taxonomic identification, we found eight species; of these, two species are new to science. Galumna was proposed by Heyden (1826), with Notaspis alatus Hermann, 1804 as type species. The nominative subgenus comprises about 190 species having a cosmopolitan distribution collectively (Subías 2019). Pergalumna was proposed by Grandjean (1936), with Oribata nervosa Berlese, 1914 as type species. The nominative subgenus comprises about 160 species collectively having a cosmopolitan distribution except the Antarctic region (Subías 2019). Identification keys to many species of Galumna and Pergalumna from different geographical regions are given by Ermilov et al (2014, 2015a, b; 2018), Ermilov & Starý (2017, 2018), Ermilov & Friedrich (2019)

Objectives

Methods