Omalus biaccinctus (Buysson, 1892)

Paukkunen, Juho, Rosa, Paolo, Soon, Villu, Johansson, Niklas & Ødegaard, Frode, 2014, Faunistic review of the cuckoo wasps of Fennoscandia, Denmark and the Baltic countries (Hymenoptera: Chrysididae), Zootaxa 3864 (1), pp. 1-67 : 9-10

4. Omalus biaccinctus (Buysson, 1892)

Ellampus biaccinctus Buysson in André 1892: 152. Syntypes ♂, ♀; France (MNHN) (examined).

Omalus biaccinctus: Linsenmaier 1959: 18 , Valkeila 1962: 63, Erlandsson 1971: 88, Banaszak 1980: 10, Silfverberg 1981: 61, Vikberg 1986b: 67, Cederberg 2000: 177, Söderman & Vikberg 2003: 44, Soon 2004: 19, 45, Cederberg 2005: 290, Sörensson 2008f, Allearter.dk 2010, Orlovskytė et al. 2010: 153, Paukkunen 2010: 542, Rosa & Soon 2012, Dyntaxa 2013.

Material examined. Denmark: LFM: Kaerstrup , 1913, 1 ♀; Søholt, 1917, 1 ♀ ; * Latvia: Dalbe , 22.VI.1973, 1 ♀ (V. Tumšs); Langstini, 25.VII.1971, 1 ♀ (V. Tumšs); Upseims, 16.VII.1974, 1 ♀ (V. Tumšs) ; * Norway: BØ: Hole , Utstranda , 25.VI–2.VIII.2011, 2 exx. (F. Ødegaard); Ø: Hvaler, Asmaløy, 25.VI.2010, 1 ex. (F. Ødegaard); *Russian Fennoscandia: Ik: Metsäpirtti [= Zaporozhskoe], 12.VII.1934, 1 ♀ (A. Merisuo) .

Distribution. Denmark, Estonia, Finland, * Latvia, * Norway, Sweden, *Russian Fennoscandia.—Westpalearctic: from West Europe to West Asia ( Linsenmaier 1959). Most common in the Mediterranean area (Mingo 1994).

Remarks. Omalus biaccinctus is a rare species in the Nordic and Baltic countries. It has not yet been recorded in Lithuania. The species has been classified as vulnerable in Finland ( Paukkunen 2010). In Sweden it is also uncommon, but was excluded from the latest national red list ( Cederberg et al. 2010). The Latvian specimens were found in LMSZ in Riga, where they had been erroneously identified as O. aeneus by Tumšs.