Abstract
The present paper deals with two species of oribatid mites of the genus Trichoribates Berlese, 1910 from the subalpine zone of high mountains in Central Japan. Trichoribates aokii n. sp. and Trichoribates hirauchiae n. sp. are proposed on the basis of adults. The first species is characterized by narrow lamellar cusps and translamella, and very closely situated notogastral setae h2 and h3. The second species is readily distinguishable from other closely related species by the specific structure of porose areas A1 and A2, the larger body size, the longer interlamellar and rostral setae, and anteriorly converging lamellae. A key to the Japanese species of Trichoribatesis provided along with data on their geographical distribution and habitat ecology.
Highlights
The oribatid mite genus Trichoribates was established by Berlese (1910) with Murcia trimaculata C
The Palaearctic region is distinguished from other regions by its high species richness (36 spp.), followed by the Nearctic region (17 spp.)
Only four species of Trichoribates have been recorded from Japan, and are mainly known from moist, warm soil and litter on the temperate habitats
Summary
The oribatid mite genus Trichoribates was established by Berlese (1910) with Murcia trimaculata C. Weigmann and Norton (2009) discussed recently the validity of this species and interpreted the type of Trichoribates. The genus is one of the most common and taxonomically diverse taxa of oribatid mites in the northern hemisphere. According to authors’ estimation, the genus comprises 52 valid species, but only a few of them, such as T. berlesei Jacot, 1929, T. novus (Sellnick, 1928) and T. copperminensis Hammer, 1952 are widely distributed in the Holarctic region. ISSN 2107-7207 (electronic) from the type localities. The Palaearctic region is distinguished from other regions by its high species richness (36 spp.), followed by the Nearctic region (17 spp.). The other biogeographical regions contain less than three species
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