Revision of the subgenus Aleochara Gravenhorst of the parasitoid rove beetle genus Aleochara Gravenhorst of Japan (Coleoptera: Staphylinidae: Aleocharinae) Author Yamamoto, Shûhei Author Maruyama, Munetoshi text Zootaxa 2016 4101 1 1 68 journal article 10.11646/zootaxa.4101.1.1 682e2c0a-35ac-46d1-9b0f-257f6d6d06f9 1175-5326 269393 53A25A6F-72AF-4B61-B8DA-E427FA2B634F Subgenus Xenochara Mulsant & Rey, 1874 ( Figs 8 , 17 , 26 , 35 , 43 , 93–99 , 117–118 , 127 ) Xenochara Mulsant & Rey, 1874 : 60 (original description); Klimaszewski, 1984 : 34 (redescription); Klimaszewski & Jansen, 1993 : 60 (redescription); Gouix & Klimaszewski, 2007 : 27 (catalogue of Canadian and Alaskan species of Aleocharinae ); Assing, 2009 : 36 (descriptive mention); Park & Ahn, 2010b : 22 (redescription). Type species: Aleochara decorata Aubé, 1850 : 311 (= Aleochara puberula Klug, 1832 ), by original designation and monotypy. Polychara Mulsant & Rey, 1874 : 64 ( type species: Aleochara discipennis Mulsant & Rey, 1853 ). Homoeochara Mulsant & Rey, 1874 : 130 ( type species: Aleochara sparsa Heer, 1839 ). Dyschara Mulsant & Rey, 1874 : 141 ( type species: Aleochara inconspicua Aubé, 1850 ). Isochara Bernhauer, 1901a : 440 ( type species: Aleochara tristis Gravenhorst, 1806 ). Ophiochara Bernhauer, 1901a : 483 ( type species: Aleochara breiti Ganglbauer, 1897 ). Euryodma Reitter, 1909 : 23 ( type species: Aleochara brevipennis Gravenhorst, 1806 ). See Klimaszewski (1984) , Klimaszewski & Jansen (1993) , Gouix & Klimaszewski (2007) , Assing (2009) , and Park & Ahn (2010) for further synonymic and taxonomic information. Diagnosis. The subgenus Xenochara is not fully defined but can be distinguished from the other congeneric taxa by the combination of following character states (see Klimaszewski, 1984 ; Park & Ahn, 2010b ): body compact, densely pubescent, spindle-shaped; antennomere IV usually elongate or at most only slightly transverse; pronotum evenly pubescent; mesoventrite rather, completely or almost completely carinate along midline; median lobe of aedeagus of male with projecting flagellum inside, at least 1/4 as long as median lobe; female spermatheca without coils basally, but sometimes deformed basally. Comments. Assing (2009) recently revised the subgenus Xenochara , proposing three subgeneric synonymies: Dyschara , Ophiochara , and Euryodma . The subgenus is probably by far the most speciose subgenus of the genus Aleochara , with Palearctic examples alone including 106 species ( Assing, 2009 ). In Japan , seven species of Xenochara are known ( Shibata et al ., 2013 ).