What type of insect is this?
My son was stung last night around 7 PM by this insect (see attachment). I am thankful that he didn't have a reaction to it. I was surprise that a bug this large was active at night and this time of year. The body is curled up. Before it died it appeared over one inch long. What should I look for in my yard to make sure there isn't more.
This is a European hornet. They do get quite large, but at this time of year all of the hornets in a hive are dying except the queen, who abandons the current hive and overwinters somewhere else. She will start a new hive in the spring in a new location.
It is late for hornets to be active, but we have had a long, fairly mild autumn and that has extended their lives. Cold weather is on the way and should knock them out.
So, there is nothing for you to do about them.
Here is our website's article about European hornets: http://extension.umd.edu/hgic/european-hornets
And about more stinging insects: http://extension.umd.edu/sites/default/files/_images/programs/hgic/Publications/non_HGIC_FS/EB248.pd...