Review of the intertidal rove beetle tribe Liparocephalini Fenyes (Coleoptera, Staphylinidae, Aleocharinae) from Japan Author Tasaku, Yuto Department of Biology, School of Biological Sciences, Tokai University, Hokkaido, 005 - 8601, Japan. & Corresponding author Author Ono, Hiroki Sounan, Minami-ku, Sagamihara-shi, Kanagawa, 252 - 0312, Japan. Author Maruyama, Munetoshi The Kyushu University Museum, Hakozaki 6 - 10 - 1, Higashi-ku, Fukuoka, 812 - 8581, Japan. text Zootaxa 2023 2023-12-12 5383 3 251 296 https://www.mapress.com/zt/article/download/zootaxa.5383.3.1/52454 journal article 10.11646/zootaxa.5383.3.1 1175-5326 10361564 20988E42-C14D-4878-A716-8CEAB5E5EF92 Genus Diaulota Casey, 1894 [Japanese name: Tsutsumune-umi-hanekakushi-zoku] Diaulota Casey, 1893: 353 (original description; type species: D . densissima Casey, 1893 ); Ahn, 1996: 271 (redescription; diagnosis; key to species); Song et al ., 2018: 931 (diagnosis; revised key). Genoplectes Sawada, 1955: 81 (original description; type species: G . uenoi Sawada, 1955 ). Diagnosis. From other genera of Liparocephalini , this genus can be distinguished by the combinations of the following characteristics: body small and robust ( Figs. 5A–C ; 8A & B ; 10A & B ; 12A & B ; 13A & B ), head longer than wide ( Fig. 1B ), tarsal formula 4-4-4 or 4-4-5. It is similar to Liparocephalus , but can be distinguished by its smaller body and slender apical lobe of paramere (see also the diagnosis of Liparocephalus ). It is also similar to Rotundicephala gen. n. but can be distinguished by its oblong head ( Fig. 1B ) and other character states (see also the diagnosis for Rotundicephala gen. n. ). Sexual dimorphism in head shape (such as L. tokunagai ) is evident in the D. uenoi , D. submarina , D. orientalis sp. n. and D. oharai . Distribution. Japan : Hokkaidô , Honshû, Shikoku, Kyûshû, Ryûkyû; Korea ; Russia ; Canada ; USA ; Mexico .