Two new species of the subgenus Flagellozetes (Cosmogalumna) Aoki, 1988 (Acari, Oribatida, Galumnidae) from China

Abstract

Two new species, Flagellozetes (Cosmogalumna) maolanensis sp. nov. and F. (C.) longtanensis sp. nov. were discovered among the oribatid mite materials collected in China. Descriptions of two new species are presented based on specimens collected from Guizhou Maolan National Nature Reserve and Guangxi Longtan National Nature Reserve. F. (C.) maolanensis sp. nov. can be distinguishable from other species within the subgenus by the combination of the following character states: reticulate pattern in the middle part of notogaster represented by rambling neural ridges, the presence of regularly polygonal reticulation ornamentation on ventral shield, the junction of notogaster and pteromorphs forms a row of ridges, the surface of notogaster porose areas with short striae, and the surface of pteromorphs with sparsely and dispersedly protrusion. F. (C.) longtanensis sp. nov. differs from F. (C.) hrioyoshii (Nakamura & Fujikawa) by the smooth surface of prodorsum, the absence of reticulate pattern on pteromorphs, the absence of granules on notogaster porose areas, and the presence of polygonal network sculpture and granules posterior part of ventral plate. This study highlights the unexplored gaps that exist in the fauna of Chinese oribatid mites.