Sitona humeralis Stephens, 1831

Balalaikins, Maksims, 2012, Latvian Entiminae (Coleoptera: Curculionidae): 3. Tribe Sitonini Gistel, 1856, Acta Biologica Universitatis Daugavpiliensis 12 (1), pp. 6-23 : 11-12

Sitona humeralis Stephens, 1831

References: Rathlef 1905; Mikutowicz 1905, 1921; Lindberg 1932; Barševskis 1993, 1997, 2002; Telnov et al. 1997; Telnov 2004; Kalniņš et al. 2007; Bukejs 2011.

Examined material: 69 specimens: Bauska d.: Mežotne, near River Lielupe , 3 May 2008 (1, leg. U. Valainis, A. Pankjāns, A. Soldāns and E. Tamanis) ; Daugavpils d.: Bebrene , 5 May 2006 (1, leg. E. Rudāns) , Daugavpils env. 2 km SE Apses, 1 August 2009 (1, bank of River Daugava , leg. A. Bukejs) , Daugavpils, Mežciems , 2 July 1991 (6, leg. A. Barševskis) , Daugavpils, Ruģeļi , 26 June 1992 (2, leg. A. Barševskis) , 3 km N Daugavpils, 27 May 2009 (1, inland dunes, leg. A. Bukejs) , Daugavpils, 14 September 1992 (1, leg. A. Barševskis) , Dviete , 1 – 15 April 2002 (2, forest, leg. A. Barševskis) , Elerne , May 2002 (1, leg. A. Barševskis) , Elerne, Muravki house 26 June 2005 (1, leg. A. Barševskis and K. Barševska) , Greizais tilts, 25 August 2010 (5, leg. M. Balalaikins) , Ilgas, Silene NPT, 6 May 1999 (1, leg. A. Barševskis) , April 2002 (1, leg. A. Barševskis) , Līksna , 25 October 1996 (3, leg. R. Cibuļskis) , Līksna , near Daugavpils beltway, 22 July 2008 (1, inland dunes, leg. A. Barševskis) , Līksna , 3 km N Daugavpils, 28 July 2009 (1, leg. A. Bukejs) , Rīga – Krāslava beltway, near Ļubesti , 2 June 2007 (1, leg. A. Barševskis) , Naujene, Slutišķi, River Putānu , Daugavas Loki NPT, 29 April 2008 (1, leg. A. Pankjāns and U. Valainis) , Stropi , 22 May 2010 (1, leg. A. Bukejs) , Šedere, Straumēni house, 16 - 17 May 2009 (1, leg. M. Janovska) , Višķi , 9 May 1985 (1 ex.), 24 September 1990 (1, leg. A. Barševskis) , 20 May 2007 (1, bank of lake, leg. M. Janovska) ; Jēkabpils d.: Aknīste , 10 August 2001 (1, leg. I. Leiskina) , Dunava , 15 – 16 April 1995 (1, leg. A. Barševskis) , 18 July 1995 (2, leg. A. Barševskis) , 10 – 13 August 1995 (4, leg. A. Barševskis), 2 August 1996 (1, leg. A. Barševskis), 22 September 1996 (1, leg. A. Barševskis), April 2002 (1, dry meadow, leg. A. Barševskis), 1 June 2002 (2, leg. A. Barševskis), June 2002 (2, leg. A. Barševskis), 14 May 2005 (1, leg. A. Barševskis), 1 June 2008 (1, leg. A. Barševskis), Jēkabpils, near Nereta road, 8 August 2008 (1, leg. A. Barševskis) ; Krāslava d.: Baltica , 21 May 1990 (1, leg. A.Barševskis) , Piedruja , 1 July 1990 (2, leg. A. Barševskis) , Ūdrīši, Daugavas Loki NPT, Zapoļņiki house, 8 – 10 May 2009 (1, leg. M. Janovska) ; Ludza d.: Ludza, 9 October 2010 (1, bank of Lake Lielais Ludzas , leg. M. Balalaikins) ; Preiļi d.: Aglona, near the Aglona’s Basilica , 27 April 2007 (3, leg. M. Janovska and A. Barševskis) , Jersika, Kurpnieki house, 22 May 2005 (1, leg. A. Barševskis) , 15 April 2007 (1, leg. A. Barševskis) , 22 – 24 June 2009 (1, leg. A. Barševskis), 15 – 16 May 2010 (1, leg. A. Barševskis) ; Rīga d.: Doles sala, 7 March 1992 (1, leg. M. Kalniņš) ; Talsi d.: Mazirbe , 3 September 2009 (1, leg. A. Barševskis) ; Valmiera d.: Briede , 21 August 2006 (1, leg. A. Pankjāns) .

Host plants: Medicago , Ononis, Trifolium ( Fabaceae ).

Phenology: III- X.

General distribution: Europe, Caucasus, Turkey, N Africa, S Siberia, Central Asia ( Kazakhstan), East Asia ( China, Mongolia) Has been introduced in N America, Australia, New Zealand ( Sue Kwong et al. 1980) [ CEM].

Note: common species in Latvia.