6637. This photo was taken in Regina, SK Canada at the beginning of September/19. It is on the outside of a window screen. Regina, SK. Canada
Number 6637. This is a pigeon tremex, Tremex columba (Hymenoptera: Siricidae). Also known as a horntail, their larvae tunnel in the wood of dead/dying hardwood trees where they are preyed upon by the larvae of giant ichneumon wasps in the genus Megarhyssa. Click here for more detailed information.