Peristenus relictus (Ruthe, 1856)

Distribution in Iran. Qazvin (Farahani et al. 2013b; Sedighi and Madjdzadeh 2015).

Distribution outside Iran. France, Germany, Poland, Turkey, USA (Loan and Bilewicz-Pawińska 1973 as Peristenus stygicus), Hungary (Papp 2002, 2006, 2008; Yu et al. 2012 as Leiophron (Peristenus) relicta), Macedonia (Papp 2010; Yu et al. 2012 as Leiophron (Peristenus) relicta), Serbia (Žikić et al. 2000; Yu et al. 2012 as Leiophron (Peristenus) relicta).

Host records. In Europe, this species is used in the biological control of Lygus lineolaris (Palisot de Beauvois) and L. Hesperus (Knight), Amblytylus nasutus (Kirschbaum), Leptopterna dolabrata (Linnaeus), Melanotrichus coagulatus (Uhler) ( Hemiptera: Miridae) (Mason et al. 2011).