“…has greatly increased in many greenhouse vegetables and ornamental crops (Van den Meiracker and Ramakers, 1991;Van de Veire and Degheele, 1992;Cocuzza et al, 1997;Van den Meiracker, 1999). Orius consists of 67 species (Yasunaga, 1997) and Orius niger Wolff is a Palaearctic species (Loomans et al, 1995) and has been recorded from many parts of Iran. This species preys upon thrips (Ramakers, 1978), mites and aphids (Akramovskaya, 1978), eggs and larvae of Lepidoptera, and eggs of pentatomids (Pericart, 1972).…”