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 281948 10.11646/zootaxa.5383.3.1 aed01355-98a2-4990-b87f-247b2665b8e2 1175-5326 10361564 20988E42-C14D-4878-A716-8CEAB5E5EF92 Genus Paramblopusa Ahn & Ashe, 1996 [Japanese name: Nise-nokoba-umi-hanekakushi-zoku] Paramblopusa Ahn & Ashe, 1996a: 148 (original description; type species: Amblopusa borealis Casey, 1906 ). Diagnosis. This genus can be easily distinguished from other Japanese liparocephaline genera by the 3-segmented labial palpus in which segment II is thinner than I ( Fig. 22C ). FIGURE 19 Mouth parts of Amblopusa brevipes . A, labrum (right side, dorsal view; left side, ventral view (epipharynx)); B, mentum; C, labium; D, maxilla; E, right mandible. Scale bars: 0.1 mm. FIGURE 20 Halorhadinus aequalis . A, Habitus; B, labrum (right side, dorsal view; left side, ventral view (epipharynx)); C, mentum; D, labium; E, maxilla; F, right mandible; G, apical lobe of paramere. Scale bars: 1.0 mm for A; 0.1 mm for B–G. Remarks. Paramblopusa eoa Ahn & Maruyama was described from Kuril Islands, Russia . In Schülke & Smetana (2015) , its distribution range includes Hokkaido , Japan . However, the source of the Japanese record remains unknown, and it was conspicuously absent in a current record of this species by Ahn et al. (2020) . Furthermore, despite our extensive survey of Hokkaidô , this species has never been encountered, and we suspect it as an erroneous distributional record. Distribution. Japan : Hokkaidô ; Russia (Kuril Islands); Canada ; USA .