Protoribates tohokuensis Fujikawa, 2003

(Figures 11 & 12)

Measurements. Body length 496–520 μm, width 304–336 μm.

Supplementary description. Adult relatively large in size. Rostral and lamellar setae medium long, thin, finely barbed; rostral seta inserted dorsolaterally on prodorsum; lamellar seta inserted on lamellar end. Interlamellar seta long, thin, finely barbed. Bothridial seta long, with unilaterally dilated, apically pointed, ciliate head. Notogastral setae represented by their alveoli. Four pairs of small rounded to oval porose areas. Epimeral and anogenital setae short; adanal setae ad 2, ad 3 and anal setae an 1, an 2 long, all barbed; ad 1 short, thin, smooth; five pairs of genital setae. Legs monodactylous.

Material examined. Three females: Mts. Seoraksan, Sockcho, Gangwon Province, Korea, from a mixed forest, soil and litter under oak trees ( Quercus mongolicus), Coll. G. Zolzaya and B. Oyunsuren, 14 August 2011 ; three females: SK Forest, Chungju, Chungbuk Province, Korea, from a mixed forest, soil and litter under broad leaved trees, Coll. B. Bayartogtokh, 13 May 2011 .

Distribution. Palaearctic region (Portugal, Japan, Korea).

Remarks. The characters of the present material correspond well with those of the Asian and European materials studied by Fujikawa (2003) and Weigmann (2012).