White-margined burrower bugs

6631.    These beetles were found in Winnipeg, Manitoba on a stump. The stump was not rotten only a few weeks ago was the tree cut down. Some of the beetles appeared all black and some were bright red and black. They were about 1/4 inch long. It is about 16-20 degrees Celsius today. Winnipeg, Manitoba. Canada

 

Number 6631. These are not beetles, but are white-margined burrower bugs, Sehirus cinctus (Hemiptera/Heteroptera: Cydnidae); Click here for an image. The adults and nymphs (the red ones) feed primarily on the seeds of nettles and plants in the mint family.