January 17, 2016 7:09 am
My brother found this in his house in Minnesota (US) in January. There were about a dozen in the windows. It has yellow striped wing covers. I am sorry about them being slightly crushed.
Despite their appearance, these are not wasps. Many harmless insects including some Moths, Hover Flies and some Longhorned Borer Beetles mimic stinging wasps for protection. Your Longhorned Borer Beetles are in the genus Neoclytus, and they might be Red Headed Ash Borers. We suspect your brother brought some firewood into the house and the warm, indoor temperatures caused the adult beetles to emerge early. They will not damage the home. You can read more about the genus Neoclytus on BugGuide.