In the book, “The Strange Lives of Familiar Insects”, Edwin Way Teale writes, "There is a small saw-fly larva that lives on pine trees. During only one instar of its live is it attacked by a parasitic wasp. And only during that one instar does it show any fear of these insects". Can anybody tell me more about this? Specifically, I am looking for more information about what saw-fly this might be and how it only exhibits “fear” during one instar and not others. Thanks!
Genus Zadiprion or Neodiprion, I suspect