• Animal Systematics, Evolution and Diversity
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• v.9 no.2
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• pp.281-292
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• 1993

Five species of lsotomidae from North Korea, including four new species lsotomurus griseus nsp., I. myohyangsanus nsp., Isotoma grana nsp., I. agrana n. sp. and one new record for North Korea, Folsomia octoculata Handschin, 1925 are described and discussed. The Korean Isotomidae, therefore, come to list 19 species in 6 genera including 15 species in six genera from South Korea.

• Animal Systematics, Evolution and Diversity
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• v.11 no.4
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• pp.479-484
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• 1995

We carried out the study on interstitial Collembola from Korean sand dunes. One new species and two new records for Korea were found. They are Friesea leei n. sp. of Neanuridae, and Proisotoma minuta Folsom, 1937 and Folsomides parvulus Stach, 1922 of Isotomidae. Also Archisotoma sp. was collected.

• Animal Systematics, Evolution and Diversity
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• v.32 no.2
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• pp.123-132
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• 2016

Six species of springtails (Collembola) are reported for the first time from North Korea: Pachyotoma takeshitai (Kinoshita, 1916), Folsomia bisetosa Gisin, 1953 and Agrenia agilis Fjellberg, 1986 of Isotomidae, Entomobrya sibirica Stach, 1963 and Willowsia buski (Lubbock, 1870) of Entomobryidae, and Ptenothrix setosa (Krausbauer, 1898) of Dicyrtomidae. The genus Pachyotoma Bagnall, 1949 is mentioned for the first time from the Korean Peninsula. In order to facilitate the identification of these species, illustrations and short diagnoses are provided and the poorly known P. takeshitai is described in detail. Ptenothrix setosa and E. sibirica link the Korean peninsular fauna with Central Asia, P. takeshitai shows the zoogeographical connection of the Korean Peninsula with the Japanese Islands and A. agilis has a trans-pacific distribution. Folsomia bisetosa is an interesting circumpolar element in the Korean fauna while W. buski is a subcosmopolitan species.

• Animal Systematics, Evolution and Diversity
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• v.34 no.1
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• pp.3-9
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• 2018

Two species of the genus Isotomurus $B{\ddot{o}}rner$ are newly recorded in Korea; I. bimus Christiansen and Bellinger, and I. plumosus Bagnall. These species are collected from salt marshes near West Sea of Korea. The Korean materials of I. bimus agreed well with the original description by Christiansen and Bellinger from North America, in its peculiar body pattern, with two long ciliated setae on tibiotarsus of hind leg, multisetaceous lateral flap of ventral tube and the presence of a mucronal lateral seta. Isotomurus plumosus is also easily identified from other Isotomurus species by the peculiar colour pattern, and the presence of long maxillary lamella 1 and a mucronal seta.

• Animal Systematics, Evolution and Diversity
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• v.12 no.2
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• pp.121-136
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• 1996

In order to understand affinities and phylogeny of three families of the Superfamily Entomobryoidea allozyme analysis was performed with three species presumably representing each family, in addition to four species belonging to the neighboring Superfamily Poduroidea together. Electrophoresis for this purpose produced data for calculating allele frequency and enabled to obtain genetic distance and to depict dendrograms as well. The species of Isotomidae, Entomobryidae and Tomoceridae were clustered together whereas those of Hypogastruridae, Onychiuridae and Neanuridae were grouped as monophylies, respectively. Even though Tomoceridae and Entomobryidae were brought together they are considered complete families by showing high genetic distance value between them, thus supporting the hypothesis on their affinity among others. Gulgastrura reticulosa has been revealed to be separated from Hypogastruridae by being clustered rather with Onychiuridae. However, its high genetic distance value suggests the status as an independent family. The present result agreed with the phylogeny of Suborder Arthropleona divided into two Superfamilies mentioned above as in conventional systematics and also when compared with analysis of data of their morphological characters as well as 18S rDNA performed and published elsewhere by the present writers.