Report of Tremex fuscicornis (Hym.: Siricidae) from Iran

In the study carried out during the summer of 2005 in Alborz Research Station in Karaj, the damage caused by a xylophagous insect was observed on trunks of poplar trees. Infected trunks and logs were transmitted to the laboratory and adult wasps were collected by banding the trunks with laces. Twenty wasps, which all were female, emerged from the logs from 23.7.2005 to 3.9.2005. These wasps were identified by the third author as Tremex fuscicornis (Fabricius), which is newly recorded from Iran.