Subject: A lot of mating going on
Geographic location of the bug: Wenatchee, Washington State USA
Time: 03:20 PM EDT
Your letter to the bugman: We have many of these bugs doing the “thing” in our backyard at the moment. We have seen them on occasion over the years but never so many all at once mating.
How you want your letter signed: Kevin
This is a Western Boxelder Bug, Boisea rubrolineata, and according to BugGuide: “Particularly noticeable in fall (often invade homes in search of shelter to hibernate) and in spring (when they emerge).”