What’s this bug

[Burt Dagger]

Found on my porch in Tacoma. Big feast for Mrs. Spider. Concerned it’s some kind of borer

 

[Smalma]

ten lined June beetle

 

[Gary Knowels]

Colloquially the watermelon bug if I recall correctly. In early July 2015 we camped on the Upper Trinity in CA and there were sooo many of them around. They were quite fond of our propane lantern and would fly into the glass at about top speed. Sounded like a pebble thrown against a window every couple of minutes, there were hundreds of them. They were about the size of my thumb from the last knuckle to tip. I found it rather amusing, my wife did not