erythrostomum (Dahlbom, 1831)

Ostrovsky, A. M., 2022, On The Fauna Of Gasteruptiid Wasps (Hymenoptera, Evanioidea, Gasteruptiidae) Of Belarus, Zoodiversity 56 (3), pp. 189-194 : 191

Gasteruption erythrostomum (Dahlbom, 1831)

M a t e r i a l e x a m i n e d. Belarus: Gomel Region: Gomel District, SW “Romantika” gardens near Klenki ,

52°27'44" N, 31°05'22" E, 121 a. s. l., dry wood on floodplain meadow, 25.06.2020, 2 ♀ (Ostrovsky).

D i s t r i b u t i o n. European species. Europe: Austria, Belgium, Bulgaria, Croatia, Czech Republic, Finland, France (incl. Corsica), Germany, Greece, Hungary, Italy, Lithuania, Montenegro, Netherlands, Poland, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland ( Ferrière, 1946; Šedivý, 1958; Hedqvist, 1973; Oehlke, 1984; Madl, 1989; Pagliano & Scaramozzino, 2000; Wiśniowski, 2004, 2020; Achterberg, 2013; Strumia & Pagliano, 2014; Žikić et al., 2014; Vas, 2016; Orlovskyté et al., 2018; Madl & Mitroiu, 2019; Bogusch, 2021); Belarus (first record).

Notes. June to August. Hosts: Colletidae : Hylaeus communis Nylander , H. hyalinatus Smith , H. pectoralis Förster and H. punctatus (Brülle) ( Malyshev, 1964; Oehlke, 1984; Jakubzik & Cölln, 1997; Windschnurer, 1997), smaller Megachilidae : Chelostoma campanularum (Kirby) , Ch. rapunculi (Lepeletier) ( Achterberg, 2013; Breugel, 2014; Bogusch, 2021). The ecology of G. erythrostomum is poorly known. Usually recorded at forest margins, wood-andsteppes and mesic meadows; not found on xerothermous sites ( Bogusch, 2021). Both sexes visit mostly flowers of Apiaceae and occasionally also Asteraceae ( Wall, 1994) .