Appearance and relative size of last instar and adult ground beetles, Calosoma and Amara spp.

Line art illustration of insect size in comparison with a 1-inch ruler also marked in mm, a bug box Credit: Packard AS. 1872. <i>Calosoma</i> adult from <i>Guide to the Study of Insects.</i> 3rd. ed. F.W. Putnam. Salem, MA. <i>Amara</i> by David Kidd. <i>Calosoma</i> larva by Peterson A. 1960. <i>Larvae of Insects: An Introduction to Nearctic Species.</i> Part II. Edwards Brothers. Ann Arbor; MI. Reprinted with permission of Helen Peterson. Adapted by UC IPM.
Credit: Packard AS. 1872. Calosoma adult from Guide to the Study of Insects. 3rd. ed. F.W. Putnam. Salem, MA. Amara by David Kidd. Calosoma larva by Peterson A. 1960. Larvae of Insects: An Introduction to Nearctic Species. Part II. Edwards Brothers. Ann Arbor; MI. Reprinted with permission of Helen Peterson. Adapted by UC IPM.