Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
North American caterpillar hunters of the genera Calosoma and Callisthenes (Coleoptera, Carabidae)
By Gidaspow, T.
Bulletin of the American Museum of Natural History 116: 225-343, 1959
Cite: 829405 with citation markup [cite:829405]
Available online here.

full text link dead--perhaps new link
Cannot access it. Biodiversity Heritage Library has the same bad link, but a Google search gave a good one:

link works for me
yours does as well, not sure why it was down