S. Mahunka szerk.: Folia Entomologica Hungarica 53. (Budapest, 1992)

Prov., Collection no. 702, from moss sample, 18 Sept. 1980, Forró and Topái; 4, Mt. Myohyang-san, Pyongan-bug-do Prov., Collection no. 830, in moss sample taken from rocks extracted with Berlese-funnels, 19 July 1982, Forró and Ronkay. Distribution: Korea (South and North Koreas). Tomocerus (s. str.) violaceus Yosii, 1956 Tomocerus violaceus Yosii, 1956: p. 91, Pl. XLV, Figs. 292-294; Yosii and Lee 1963: p. 5; Yosii 1967: p. 32, Fig. 18; Lee 1975: p. 960; Lee 1983: p. 7, Fig. 12. The present materials agree well with the redescription by Yosii (1967), based on his material from Japan. This species is a new record for North Korea. Material examined: 3, Mt. Kumgang-san, Kangwon-san, Kangwon-do Prov., Collection no. 699, from moss sample collected along the foot-path to Kuryong-Falls, 7-800 m a. s. 1., extracted with Berlese-funnels, 18 Sept. 1980, Forró and Topái. Distribution: Japan, Korea (South and North Koreas). Tomocerus (Monolamellus) laxalamella Lee, 1975 Tomocerus laxalamella Lee, 1975: p. 953, Fig. 5. Tomocerus (Monolamellus) laxalamella Lee 1983: p. 9, Fig. 16. The characters of the present material are the same as those described by Lee from South Korea (Lee 1975, 1983), but the following note is to be added: the length of antennae almost as long as furculae. In addition, the present material shows some variation greater in extent when compared to that in the original description. The number of inner teeth of unguis in these specimens are 4-6, whereas 4 in the original ones. Dental spines are arraged as 3-5/1,11 instead of 5/1,11. Young individuals, especially, are with dental formulae as 3-4/1, II. This species is a new record for North Korea and endemic to the Korean peninsula. Materials examined: 14, Mt Myohyang-san, Pyongan-bug-do Prov., Collection nos. 782, 791 and 819, in sifted litter taken from a mixed arboreal forest, extracted with Moczarsky-Winkler apparatus, 13-14 and 17 July 1982, Forró and Ronkay. Distributon: Korea (South and North Koreas). DISCUSSION We gave the descriptions of two new species of Entomobrya and new record of three species for Korea, in addition to simply noting 13 species on record. Furthermore, 11 species in 4 genera of Sinella, Entomobrya, Homidia, and Tomocerus are found to be also new records for North Korea having been reported earlier from South. Our previous description of Homidia bilineata (Lee et Park 1984), however, has to be synonymized with H. phjongjangica for their distinct overall similarity. Quite interesting is that Entomobrya aino and E. pulcherrima are sharing the same chaetotaxy in thoracic and abdominal tergites, which, however, are differentiated by distinct pattern on tergites Th. II-III and Abd. I-II. In view of our early experience of observing similar chaetotaxy between two populations of South Korean Homidia koreana while demonstrating different patterns and zymograms (Lee and Park 1991). The present case of identical chaetotaxy must also be examined for its taxonomic validity.