Agonum placidum is a species of black coloured[1] ground beetle in the Platyninae subfamily that can be found in woodlands, thickets, and open fields of southern Canada and northeastern United States.[2]
Agonum placidum is a species of black coloured ground beetle in the Platyninae subfamily that can be found in woodlands, thickets, and open fields of southern Canada and northeastern United States.
