Callisthenes (Callistenia) schaefferi (Breuning 1928)
Locality: Native, New World. USA- CA, OR
Common Name: Schaeffer's Beautiful Black Searcher
Synonyms: Calosoma irregulare Schaeffer, 1915; Calosoma discors schaefferi Breuning, 1928; Calosoma striatius Hatch, 1953 [NEW SYNONYMY]
Notes: Gidaspow (1959) states that she did not see Hatch's type, nor could she make much of the description. I [Erwin] have compared the Holotype of C. striatus (now in NMNH) with Schaeffer's type of C. irregulare (also in NMNH) and they represent the same species.
Macrohabitat: Midlands to uplands, 600-1981 meters altitude. Microhabitat: On the ground in damp meadows. Dispersal abilities: Brachypterous, hence flightless thus vagility limited to walking or running. Seasonal occurrence: Adults have been found in April- July. Behavior: Unknown. (Erwin, 2001; Data from CAS, NMNH collections)