Microplontus triangulum (Boheman)

Ceutorhynchus triangulum Boheman, 1845

Records. CRI* ČER DON IFR KHE KHM KHR* KYI LWI POL* RIV SUM TER VIN VOL ZAK ŽIT* [Rybiński 1903a: 28; Penecke 1928: 370; Kryzhanovskaya 1975: 34; Korotyaev 1980: 226; Mazur & Kuśka 1994: 307; Kubisz et al. 1998: 275; Mazur 2002: 233; Colonnelli 2004a: 64; Colonnelli 2004b; Nazarenko 2005b: 59; Nazarenko 2009b: 501; Nazarenko 2010d: 87; Colonnelli 2013: 194; Nazarenko 2013b: 24].

Distribution. Europe, Asia Minor, Kazakhstan, Middle Asia, Siberia, Russian Far East (Colonnelli 2013).

Material examined. Crimea: 2 spec. (FRC) Bilohirsk Distr., Molbai basin, valley of Tserik-Uzen River, R. V. Filimonov leg., 9.v.2013 ; Donetsk Prov.: 3 spec. (ZIN) Yarova, Siverskyi Doniets River, Svyatohirsk Monastery, Arnoldi leg., 2.vi.1937; Kharkiv Prov.: 1 spec. (ZIN) Zmiiv Distr., Gaidary, N. Yunakov leg., 4.vi.1999; 1 spec. (ZIN) Balaklia Distr., nr. Protopopivka, bank of Siversky Donets River, N. Yunakov leg., 27.vi.2000 ; Kyiv Prov.: 3 spec. (ZIN) Sovki, Kyiv env., Ananov leg., 15.viii.1886; Poltava Prov.: 1 spec. (ZIN) Poltava, D. Ogloblin leg., 20.v.1913; 1 spec. (ZIN) Poltava, Th. Lukjanovitsh leg., 5.v.1924; 1 spec. (ZIN) Poltava env., Th. Lukjanovitsh leg., 9.v.1923; 1 spec. (ZIN) idem, 3.v.1925; 1 spec. (ZIN) idem, 16.v.1926; 1 spec. (ZIN) Poltava Ogloblin leg., 20.iv.1914; Sumy Prov.: 2 spec. (ZIN) Shostka Distr., Korzhevka, 1940; 1 spec. (ZIN) Shostka, Kurnakov leg., 16.vi.1940; Zhytomyr Prov.: 1 spec. (ZIN) Borschiv, 12 kmfrom Radomyshl, Birulya leg., 11.vi.1910 .

Biology. Xerothermic grasslands, agricultural habitats. Adults occur in IV–VIII. On Asteraceae: Achillea millefolium (Penecke 1928; Hoffmann 1954; Dieckmann 1972b; Smreczyński 1974; Kryzhanovskaya 1977; Lohse 1983n; Colonnelli 2004a; Isayev 2007); Leucanthemum vulgare (occasionally?) (Hoffmann 1954); Glebionis segetum (occasionally) (Hoffmann 1954; Colonnelli 2004a).