Calosoma scrutator is a species of ground beetle belonging to the genus Calosoma and the subgenus Acalosoma. 35 mm long, it is diffused in North America.
Macrohabitat: Lowlands to uplands, 50-2110 meters altitude in hardwood forests and dry oak/pine forests. Microhabitat: On the ground or climbing plants. Dispersal abilities: Macropterous, capable of flight. Seasonal occurrence: Adults have been found in January, and March- November. Behavior: Adults are predaceous on tent and noctuid caterpillars. Copulating pairs in May- August. Adults are occasional climber on plants, e.g. Helianthus tuberosa L. Adults frequently found at lights at night and in beach drift. (Ciegler, 2000; Erwin, 1991 & 2001; Gidaspow, 1959; Data from NMNH, UASM collections)