TABLE 1. Distinguishing characters of Aleochara (Xenochara) ichikawai sp. nov. and A. (X.) fumata Gravenhorst, A. ichikawai sp. nov.A. fumata Gravenhorst, 1802Body color except elytrapale brown to brown (Fig. 1)brown to dark brown (Klimaszewski et al., 2017: Fig. 20)Aedeagus (apical lobe in lateral view)minutely but distinctly curved just before apex (Fig. 9)almost straight around apex (Fig. 13)Aedeagus (apical lobe in ventral view)narrower (Fig. 10)wider (Fig. 14)Aedeagus (flagellum)approximately 1.2–1.3 times longer than median lobe (Fig. 9)approximately 1.0–1.1 times longer than median lobe (Fig. 13)Aedeagus (subapical sclerite in lateral view)thinner, upturned (Fig. 9a: arrow)thicker, slightly upturned (Fig. 13a: arrow)Aedeagus (apical sclerite in ventral view)curved inward (Fig. 10a)curved outward (Fig. 14a)Apical lobe of paramerelonger (Fig. 11)shorter (Fig. 15)Spermatheca (constriction of apical 1/3 of basal part)smaller (Fig. 12)larger (Fig. 16)Spermatheca (sclerotization of apical part)thickened around opening of spermathecal gland (Fig. 12: arrow)not thickened around opening of spermathecal gland (Fig. 16)

Published as part of Maruyama, Munetoshi, Nozaki, Tsubasa & Kamezawa, Hiromu, 2025, Description of Aleochara (Xenochara) ichikawai sp. nov., the first confirmed myrmecophilous species of Aleochara Gravenhorst, 1802 from the East Palearctic Region (Coleoptera: Staphylinidae: Aleocharinae), pp. 439 in Zootaxa 5666 (3) on page 439, DOI: 10.11646/zootaxa.5666.3.8, http://zenodo.org/record/16611668