A new species of gymnodamaeid mite, Arthrodamaeus mongolicus sp. nov. from Eastern Mongolia, is described. In addition, two known species of cera-tozetid mites, Fuscozetes fuscipes (C.L.Koch, 1844) and F.tatricus Seniczak, 1993 are recorded for the first time in the fauna of Mongolia, and are re-described based on specimens from northern and eastern parts of the coun-try. Arthrodamaeus mongolicus sp. nov. is easily distinguishable from all known species of the genus by the well developed tubercles on the anterior part of the notogaster.
Raymunida elegantissima (de Man, 1902) is redescribed on the basis of the holotype from the Moluccas, Indonesia. A new species of Raymunida Macpherson and Machordom, 2000, R.lineata, is described and illustrated on the basis of specimens collected from Japan. This species is close to R.elegantissima, but is distinguished by the structure of the fifth and sixth thoracic sternites, second to fourth abdominal segments, first segment of the antennal peduncle, and fixed finger of the cheliped. Raymunida lineata exhibits variation in the length of the mesial spine of the first antennal segment, which is a character used to divide the genus into two groups in the most recent key to the species of Raymunida.
A small collection of leucosiid crabs collected by tangle nets from Balicasag Island, Bohol, Philippines, includes a total of 28 species belonging to 16 genera. Of these, two new species, Raylilia intermedia and Tokoyo trilobata, are described, and the following six species are recorded as new to the Philippines: Arcania muricata Galil, 2001, Drachiella angulata (Ihle, 1918), Leucosia anatum (Herbst, 1783), Merocryptus lambriformis A.Milne-Edwards, 1873, Myra grandis Zarenkov, 1990, and Tanaoa yokoyai (Sakai, 1965), n.comb.
Two species of lyctocorine flower bug that inhabit subtropical islands of Japan are described as new: Scoloposcelis albodecussata sp. nov., from the Ryukyus, and S.boninensis sp. nov., from the Ogasawaras (Bonin Islands). A key is presented to distinguish the four species of Scoloposcelis known to occur in Japan.
Zavrelimyia kuroberobusta Sasa and Okazawa, 1992 is transferred to the genus Alotanypus Roback, 1971 on the basis of the adult morphology. The adult male is redescribed, while the adult female and the immature forms, pupa and larva, are described for the first time. At present this is the only species of Alotanypus known from the Palaearctic Region.