study on diplazontinae (hymenoptera: ichneumonidae) in north central iran

the fauna of the subfamily diplazontinae (hymenoptera: ichneumonidae) in the north central parts of iran was studied during 2010-2011. a total of 933 specimens were collected in 30 localities at different altitudes using malaise traps. sixteen species belonging to 7 genera were identified of which twelve species indicated by asterisk, are new records for iran: diplazon annulatus (gravenhorst)*, diplazon laetatorius (fabricius),d. pectoratorius (gravenhorst)*, d. tibiatorius (thunberg)*, enizemum ornatum (gravenhorst), homotropus nigritarsus (gravenhorst)*, homotropus pictus (gravenhorst)*, promethes sulcator (gravenhorst), sussaba flavipes (lucas)*, sussaba pulchella (holmgren)*, syrphoctonus tarsatorius (panzer)*, syrphophilus bizonarius (gravenhorst)*, tymmophorus obscuripes (holmgren)*, woldstedtius biguttatus (gravenhorst), woldstedtius citropectoralis (schmiedeknecht)* and xestopelta gracilima (schmiedeknekht)*. detailed morphological characters and a key to the genera and species are provided. flight periods and distribution in relation to altitude on two slopes of the alborz mountains are discussed.