Huge Hornet or Wasp?
Hi I found this on one of our trees in the front yard. I wanted to know if you could tell me what kind of bug it is and what it’s doing with it’s extremely long tail?
Hi there Scott,
This is one of the Giant Ichneumons in the genus Megarhyssa, probably Megarhyssa macrurus. Giant Ichneumons are non-stinging relatives of wasps. This female is ovipositing. The long stingerlike “tail” is her ovipositor and it enables her to lay eggs deep in borer infested wood. The food for the young Megarhyssa is the larval form of wood boring insects like Horntails.