Diolcogaster alvearia (Fabricius, 1798)

Distribution in Iran. Qazvin (Ghahari et al. 2011b).

Distribution outside Iran. Austria, Bulgaria, China, former Czechoslovakia, France, Germany, Greece, Hungary, Italy, Moldova, Netherlands, Romania, Russia, Slovenia, Spain, Switzerland, Turkey, UK, former Yugoslavia (Yu et al. 2012).

Host records. Alcis repandata, Craesus septentrionalis, Menophra abruptaria, Opisthograptis luteolata, Ourapteryx sambucaria, Peribatodes rhomboidaria, Baryscapus endemus, Hypomecis sp., Meligehtes picipes (Yu et al. 2012) .