What is this hornet/wasp?
Please help me to identify the hornets/wasps - some came into the house on Wednesday. There are currently about 20 flying around some of our eastern facing windows. I’ve killed at least 40 so far. AND, my husband is severely allergic to their stings! I can’t see their nest. I don’t know exactly how they are getting into the house. They are 1 1/4” to 1 3/4” long. I’ve had the pest elimination people here this morning, who say that spraying powder on an area where I can see them flying in and out (a second floor roofline junction) will just drive them further into the house. I’ve had a home builder here who said that it might involve opening up the soffit of the house to try to remove the nest- that we can’t see. It seems if I knew the exact species of this insect that it would help me to understand them, what to expect and what to do. Thank you in advance for your help.
Chittenden County Vermont