A xiphydriid woodwasp, Indoxiphia prima Smith, 2019, previously known only from Taiwan, is newly recorded from Ashizuri-misaki (Shikoku), Nakanoshima Island (Tokara Islands) and Amami-oshima Island, southern Japan. Its taxonomic characters are summarized, and the species is compared with some other Japanese xiphydriids. This is one of a few xiphydriid species showing a peculiar distribution pattern confined to southeastern coastal areas in Japan. This distribution pattern may have been formed at least partly as a result of dispersal by marine drift.
A list of pselaphine species collected from Mt Phia Oac, Cao Bang Province, North Vietnam in 2017 is present. Collecting data of eighteen pselaphine species are listed up. Three pselaphine species, Pseudoplectus sp. 1, Triomicrus sp. 1 and Nomuraius piaoacus are observed by SEM. A corrected checklist of the Vietnamese species of the subfamily Pselaphinae including 73 genera, 116 species is supplemented.
In the course of biological inventory by FRI, Myanmar and NMNS, Japan conducted in Tanintharyi Region in Nov. 2018, 50 pselaphine species of 35 genera were recognized. The following four species are recorded from Myanmar for the first time: Trichonomorphus ursinus Raffray, 1890, Cratna abdominalis Löbl, 1975, Pareuplectops coomani Jeannel, 1957, Megatyrus masumotoi Nomura et al., 2010.
Four specimens of the rare filefish, Thamnaconus garretti (Fowler, 1928), were collected from the waters around Midway Island in the central Pacific. Detailed examinations of these specimens provide distinguishing characters of this filefish, placing it in the genus Thamnaconus Smith, 1949. Comparisons of the present specimens and previously reported specimens suggest that sexual dimorphism occurs in this rare filefish: the body is more elongate in males than females and the dorsal profile is slightly convex in males and straight in females.
A specimen (51.4 mm standard length) of the triacanthodid fish Bathyphylax omen Tyler, 1966 collected off central Honshu, Japan is reported with detailed description. This species was previously known only from three specimens collected off Kenya, western Indian Ocean. The present specimen represents the first record of this species from the western Pacific. The newly collected specimen reveals fresh color of this species for the first time. The specimen from Japan was identified as B. omen by its color pattern of the body and the dorsal profile of the snout. Taxonomic comments on distinguishing characters of Bathyphylax bombifrons Myers, 1934 and B. omen are provided.
We collected soricid shrews of the order Eulipotyphla from March 15 to 27, 2017 on Mt. Tay Con Linh, Ha Giang Province, northeast Vietnam, to investigate species composition and changes over the past 16 years. A total of 35 individuals of the family Soricidae, comprising five genera and the following seven species, were obtained: Anourosorex squamipes, Blarinella quadraticauda, Chimarrogale himalayica, Chodsigoa caovansunga, Chodsigoa hoffmanni, Crocidura dracula, and Crocidura wuchihensis. These are the first records of Anourosorex squamipes and Chimarrogale himalayica in Ha Giang Province. There was no evidence of the presence in this study, of the soricid shrew Crocidura attenuata or the talpid mole Scaptonyx fusicauda, two eulipotyphlan species that were previously recorded. Logging and an expanded plantation of the Chinese cardamom (Lanxangia tsaoko) were observed along the trails. Four individuals from three species were collected in the plantation area, while thirty-one individuals from six species were collected in habitats similar to those reported previously. The Chinese cardamom plantation and logging might have affected the habitat and distribution of the terrestrial shrew species.