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 20988E42-C14D-4878-A716-8CEAB5E5EF92 Key to the Japanese Genera of Liparocephalini 1. Labial palpus 3-segmented and segment II thinner than I........................................... Paramblopusa - Labial palpus 2-segmented or incompletely 3-segmented or completely 3-segmented but, usually segment II as wide as I... 2 2. Body slender; abdominal segments III–VII almost parallel-sided; ligula long, reaching to 1/2 of segment I of labial palpus.. 3 - Body robust and some or less broad; abdomen more or less oval; ligula short, not reaching to 1/2 of segment I of labial palpus ................................................................................................... 4 3. Labrum wider than long; one medial seta presents on prementum....................................... Amblopusa – Labrum semicircular; two medial setae present on prementum........................................ Halorhadinus 4. Body large, more than 5.0 mm; apical lobe of paramere broad and triangular........................... Liparocephalus - Body small, less than 3.0 mm; apical lobe of paramere slender................................................. 5 5. Head oblong; tarsal formula 4-4-4 or 4-4-5; abdomen oval............................................... Diaulota - Head rounded; tarsal formula 3-3-4; abdomen oblong oval................................... Rotundicephala gen. n.