On the taxonomy and zoogeography of some Palaearctic Aleochara species of the subgenera Xenochara M & R and Rheochara M & R (Coleoptera: Staphylinidae: Aleocharinae) Author Assing, V. text Beiträge Zur Entomologie = Contributions to Entomology 2009 2009-07-15 59 1 33 101 journal article 0005-805X Aleochara (Xenochara) signata ( SAHLBERG , 1876) ( Figs 119-123 ) Baryodma signata SAHLBERG, 1876: 75 . Aleochara navicularis FAUVEL, 1900: 247 ; synonymy by SEMENOV (2003) . Aleochara tertiaria SEMENOV, 1998: 15 ff.; synonymy by NIKITSKY & SEMENOV (2001) . Material examined: Germany : 1 ♂ , Berlin-Lübars, moist slope, 21.IX.1981 , leg. Winkelmann (cAss) ; 1 ♀ , Lebus/Oder, wheat field, 31.VI.1997 , leg. Barndt (cAss). Mongolia : 1 ♂ , Central aimak, SE Somon Bajanzogt, 1600 m , 11.VI.1966 , leg. Kaszab [ paratype of A. accepta , see type material of A. accepta ]. Comment: The original description of A. signata is based on an unspecified number of syntypes from "Wiborgs län" (today St. Petersburg region) and "Åbo" in southern Finland ( SAHLBERG 1876 ). These localities are not accounted for by SMETANA (2004) . The type material was studied and a lectotype was designated by SEMENOV in NIKITSKY & SEMENOV (2001) , who also placed A. tertiaria in synonymy with A. signata . Aleochara navicularis , whose original description is based on a single specimen from " Irkoutsk " ( FAUVEL 1900 ), was recently synonymised with A. signata by SEMENOV (2003) , who also designated a lectotype for A. navicularis . For illustrations of the genitalia and descriptive details see NIKITSKY et al. (1998) . Only recently, ÁDÁM (2008) synonymised also A. accepta LIKOVSKÝ with A. signata , but this synonymy is incorrect (see the following section). Redescription: Body length: 4.5-5.5 mm , according to NIKITSKY et al. (1998) . External characters as in A. laevigata , but distinguished as follows: Figs 114-123: Aleochara lonae GRIDELLI ( 114-118 ; 115, 117: Albania; 114, 116: Greece) and A. signata (SAHLBERG) ( 119-123 ): male tergite VIII ( 114 ); median lobe of aedeagus in lateral view ( 115-116, 119 ); apical portion of median lobe of aedeagus in lateral view ( 117, 120 ); spermatheca ( 118, 123 ); paramere ( 121 ); apical lobe of paramere ( 122 ). Scale bars: 114: 0.5 mm; 115-121, 123: 0.2 mm; 122: 0.1 mm. Coloration paler: elytra extensively reddish, usually with the anterior and lateral margins, as well as the suture more or less distinctly darkened. Metatarsus clearly (approximately 0.8 x) shorter than metatibia. ♂ : median lobe of aedeagus large, approximately 0.85-0.90 mm long, somewhat resembling that of A. lonae , with pronounced carinae at base of ventral process ( Figs 119-120 ); apical lobe of paramere small and only approximately twice as long as broad ( Figs 121-122 ). ♀ : spermatheca distinctly larger and less slender than that of A. laevigata , and with distal portion of capsule of different shape ( Fig. 123 ). Distribution: The distribution of this species is insufficiently known, with scattered records reported from eastern Scandinavia, from the northern and central parts of European Russia , eastern Siberia, Mongolia , and Germany ( ASSING & SCHÜLKE 2001 ; SEMENOV 1998 ; SAHLBERG 1876 ; SMETANA 2004 ).