Bagous argillaceus Gyllenhal

Bagous argillaceus Gyllenhal, 1836

Bagous inceratus Gyllenhal, 1836

Bagous encaustus Boheman, 1845

Records. CRI ČER ČRK ČNG* DON IFR KHE KHM KHR KRO KYI LUG LWI TER VIN [Schoenherr 1845: 75; Lindemann 1871: 196, 286; Łomnicki 1877b: 152; Łomnicki 1884: 32; Cherkunov 1889: 190; Kiseritzky 1915: 181; Penecke 1928: 364; Pjatakova 1930: 316; Mazur 2002: 223: 54; Nazarenko et al. 2003; Caldara, 2013b: 172].

Distribution. Europe, Caucasus, Asia Minor, Kazakhstan, Middle Asia, West Siberia, Mongolia, North Africa (Caldara 2013b).

Material examined. Cherkasy Prov.: 1 spec. (ZIN) Zolotonosha Distr., Mekhedovka, Kizeritsky leg. ; 3 spec. (ZIN) Zolotonosha, Kizericki leg., 1.v.1906 ; 1 spec. (ZIN) idem, vi.1907; 1 spec. (ZIN) idem, vi.1908; 2 spec. (SIZK) Zvenigorod Distr., Murzyntsi ; 1 spec. (SIZK) Mleevo, 9.vi.1921; Chernihiv Prov.: 1 spec. (ZIN) Antonivka, Th. Lukjanovitsh leg., 16.v.1925 ; Crimea: 1 spec. (ZIN) Eupatoria, V. E. Yakovlev leg., 7.iv.1902 ;

Donetsk Prov.: 2 spec. (ZIN) Banne, Siverskyi Donets River, Svyatohirsk Monastery, Arnoldi leg., 17.vi.1937 ; 1 spec. (ZIN) Tetyanivka, Siversky Donets River, Svyatohirsk env., Arnoldi leg., 8.vii.1937 ; 2 spec. (ZIN) Yarova, Siversky Donets River, Svyatohirsk env., Arnoldi leg., 10.vi.1937 ; Luhansk Prov.: 4 spec. (ZIN); Luhansk env., V. Talicky leg., 16.viii.1929 .

Biology. Xerothermic biomes, salty semideserts. Adults occur in IV–VIII. On Alisma plantago-aquatica (Alismataceae), Polygonum and Rumex (Polygonaceae) (Cunev 2013).