A revision of the genus Zyras (Zyras) Stephens, 1835 (Coleoptera, Staphylinidae, Aleocharinae). I. Current classification status and the redefinition of the genus Author Hlavac, Peter Czech University of Life Sciences, Faculty of Forestry and Wood Sciences, Department of Forest Protection and Entomology, Praha, Czech Republic Author Jaszay, Tomas Museum of Šariš, Natural History Department, Bardejov ,, Slovakia text ZooKeys 2009 2009-12-11 29 29 49 71 journal article 10.3897/zookeys.29.218 884a65c3-a7f0-46bb-8018-8f930c0e73d0 1313–2970 576574 1. obliquus ( Casey, 1894: 325 ) ( Myrmedonia ). Distribution: USA , Canada = pseudohaworthi Klimaszewski, 2002: 53 2. planifer ( Casey, 1894: 326 ) ( Myrmedonia ). Distribution: USA = schwarzi Wasmann, 1894: 207 ( Myrmedonia ) 3. rudis ( LeConte, 1866: 372 ) ( Myrmedonia ). Distribution: USA West Palaearctic region: This area, as defined here, includes the whole of Europe, northern Africa, Arabian peninsula, Caspian region and Siberia to Lake Baikal. All five species recorded here are true Zyras . 4. collaris ( Paykull, 1789: 50 ) ( Staphylinus ). Distribution: Europe, Russia (European), Azerbaijan , Georgia , Algeria 5. cultus Last, 1960: 14 . Distribution: Algeria , Eritrea , Angola 6. fulgidus ( Gravenhorst, 1806: 163 ) ( Aleochara ). Distribution: Europe, Russia (European), Georgia , Iran , Near East 7. haworthi ( Stephens, 1832: 126 ) ( Aleochara ). Distribution: Europe, Armenia , Azerbaijan , Georgia , Russia , Algeria , Tunisia , Japan = elegans ( Heer, 1839: 350 ) ( Bolitochara ) = nigricollis Motschulsky, 1845: 41 8. maculipennis Gridelli, 1921: 87 ( Zyras fulgidus var. maculipennis ). Distribution: Caucasus, Kazachstan, Uzbekistan East Palaearctic region: This area includes Siberia east from Lake Baikal, Nepal , northern India , China , Taiwan , Koreas, Japan and Russia Far East. Currently there are 36 species described from this region and one nomen nudum .