* Opius (Nosopoea) ambiguus Wesmael, 1835

Opius ambiguus Wesmael, 1835: 1 –252.

Opius (Allotypus) ambiguus Tobias & Jakimavicius 1986:7 –231. Opius (Nosopoea) ambiguus Papp 1981b: 1 –163.

Synonym. Opius longipes Fischer, 1957 b; Opius nodifer Fischer, 1959; Opius phytomyzae Fischer, 1957 b; Opius reptantis Fischer, 1957 b.

Distribution in Turkey. Yalova (Fischer & Beyarslan, 2005b); Erzincan (Fischer & Beyarslan, 2012).

Distribution. Palaearctic. Austria, Belgium, Bulgaria, Czechoslovakia, Denmark, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Korea, Mongolia, Netherlands, Poland, Russia, Sweden, Switzerland, Turkey, United Kingdom.

Hosts. Diptera . Agromyzidae: Agromyza albipennis Meigen, 1830 [ Phalaris arundinacea, Urtica dioica]; A. anthracina Meigen, 1830 [ Urtica dioica]; A. nigrescens Hendel, 1920; A. pseudoreptans Nowakowski, 1967 [ Urtica dioica]; A. reptans Fallén, 1823; Aulagromyza buhri (de Meijere, 1938) [ Galium mollugo]; Cerodontha caricicola (Hering, 1926) [ Carex pendula]; C. flavocingulata (Strobl, 1909) [ Festuca gigantea]; C.incisa Meigen, 1830 [ Calamagrostis arundinacea]; C. luzulae (Groschke, 1957) [ Luzula maxima]; Chromatomyia milii Kaltenbach, 1864 [ Deschampsia cespitosa]; Liriomyza pusio (Meigen, 1830) [ Arrhenatherum elatior]; Nemorimyza posticata (Meigen, 1830) [ Solidago virgaurea]; Phytobia sonderupi Herting, 1978 [ Carex pendula]; Phytomyza aegopodii Hendel, 1923 [ Aegopodium podagraria]; P. alpina Hendel, 1923 [ Senecio jacobaea]; P. angelicae Kaltenbach, 1874 [ Angelica sylvestris]; P. angelicastri Hering, 1932 [ Angelica sylvestris]; P. lappae Goureau, 1851; P. lappina Goureau, 1851 [ Arctium sp.]; P. marginella Fallen, 1823 [ Hieracium sp.]; P. montana Groschke, 1957; P. sphondyliivora Spencer, 1957 [ Heracleum sphondylium].