5624 Hello, I found your site and looked through your photos and could not identify one that matches what we have. These are in our home, I have killed over 25 of them since moving in aprox. one year ago. The length is 5/8 in long x 3/8 in wide and they do fly. I have generally found them when we have a change in temperature/ warmer day. I live in Plymouth Michigan, which is a suburb of Detroit. Please let me know if you can help. Thank you. Ronald
Like No. 5621, this is a brown marmorated stink bug, Halyomorpha halys (Hemiptera/Heteroptera: Pentatomidae). Ed Saugstad, retired entomologist; Sinks Grove, WV.