I first noticed these last summer outside my house about 30 miles west of Washington, DC in the northern VA suburbs. For about a month, I would see one every couple of days hurling itself into the porch light at night. I initally thought it was a locust because of its size and impact sound. Only when it gave up and buzzed away did hear the menacing sound of its wings, which was nothing like the familar clatter of a locust/cicada. Then one night while working on my car in the garage, four of them came in -- fortunately not at the same time! Each time, one of them would come tearing in through the open garage door and attack each of the 6 overhead lights like mad. It would pause for about 10 seconds after each 3-minute light-bulb battle.
These fuckers are relentless. On the first one, I wasn't sure what I was dealing with, so I assumed I could easily dispatch it and be about my car repair. I grabbed my hornet spray and cautiously waited for it to land. As soon as I got within 10 feet of where it paused, the damned thing came after me dive-bomber style. Thanks to a violent fit of crouching, ducking, and infant-fall-reflex, I didn't get nailed. This happened at least 6 more times before I finally hit it with the spray...BUT THEN IT WAS JUST MAD. It went absolutely berzerk and did its pelting attack routine against everything in my garage. Again, I hit it after 3 minutes when it landed. It finally ended up on the ground, but was still trying to fly, so I emptied a quarter of the spray can, which finally got it.
After enjoying a brief sense of accomplishment from a 20-minute battle with mother nature, I got back to work....for 5 minutes...before another one came in. I HATE these things. I spent 90 minutes that night duking it out with them. I killed another one a week ago but I have no clue where the nest might be. And I don't want to know. I've warned my kids about them, but I know it's only a matter of time. I just hope it doesn't go badly.