Calosoma (Castrida) vagans Dejean, 1831

Length 22-28 mm. C. vagans has a smooth pronotum and its hind angles are rounded and obtuse, and they extend backward. The elytral sculpture is quite regular, flattened, with reduced foveae on the primary intervals, smaller than the width of the intervals themselves; all the intervals have fine transverse wrinkles.
The metatrochanter are rounded in both sexes. The margin of the elytra is serrated but are common cases with only feeble trace of serration, or with quite even margin. The middle tibiae of male are strongly arched but the hind tibiae are only slight arched. The color of upper body is dark brown, without metallic luster.
C. vagans is widespread in Chile, but sporadic presences in Argentina were reported. Recently a specimen coming from Leticia in Amazonas region of Colombia was offered for sale on Ebay. However, the indication of the place of capture is very doubtful given that C. vagans is not even knwn from the intermediate regions of Peru.

Examined specimens and literature’s data
Argentina. Chubut (Jeannel,1940: 96); Neuquén: (Bruch, 1911; 152), Pampa Rahue, San Martín de Los Andes (IADIZA, www.gbif.org/), Junín de los Andes (www.inaturalist.org); Patagonia (Gidaspow, 1963: 303); Rio Negro: (Bruch, 1911; 152), Lago Las Moscas, El Bolsón (IADIZA, www.gbif.org/)
Chile. Antofagasta: Paposo, Taltal (Ferrú & Elgueta, 2011: 14); Araucanía: Cautín, Vilcún (www.inaturalist.org), Angol (SB); Atacama: PN Llanos de Challe, 18 km S Domeyko (IADIZA, www.gbif.org/); Bío Bío: Coihueco (MCG), Cobquecura (MCG), Chillán (MCG, SB), Pinto (MCG), Quilaco (www.inaturalist.org); Cauquenes: Reserva Nacional Los Ruiles (Ferrú & Elgueta, 2011: 14); Cautín: Curarrehue, Temuco, Villarrica (Ferrú & Elgueta, 2011: 14); Chañaral: Carrizal, Pan de Azúcar (Ferrú & Elgueta, 2011: 14); Chiloé: Ancud (Ferrú & Elgueta, 2011: 14); Choapa: El Bato (Ferrú & Elgueta, 2011: 14); Concepción: Concepción (MCG), Hualpén (SB); Copiapó: Travesía; Huasco: Juntas del Carmen, Mineral Algarrobo, Piedra Colgada, Vallenar (Ferrú & Elgueta, 2011: 14), Valle del Huasco (SB); Coquimbo: Peralillo Elqui(SB), Altos de Talinay, Cuesta Porotitos, El Tofo, La Higuera, La Serena (Ferrú & Elgueta, 2011: 14), Los Loritos (TL); Cordillera: El Canelo, río Clarillo (Ferrú & Elgueta, 2011: 14); Curicó: Vichuquén (Ferrú & Elgueta, 2011: 14); El Loa: San Pedro de Atacama (Ferrú & Elgueta, 2011: 14), Chorrillos (SB); Iquique: Alto Punta Gruesa (Ferrú & Elgueta, 2011: 14); Linares: La Balsa, Villalobos (Ferrú & Elgueta, 2011: 14); Los Lagos: Osorno, Llanquihue (www.inaturalist.org), playa Maitén (Ferrú & Elgueta, 2011: 14); Ñuble: San Fabián de Alico (Ferrú & Elgueta, 2011: 14), Los Llenques (TL); Malleco: Angol (Ferrú & Elgueta, 2011: 14); San Antonio: Algarrobo (Ferrú & Elgueta, 2011: 14); R.M. Santiago: Macul, (Ferrú & Elgueta, 2011: 14), San Bernardo, Cerro Manquehue (www.inaturalist.org), Santiago (SB), Talagante (SB); Talca: Maule (Ferrú & Elgueta, 2011: 14); Valdivia: Panguipulli (Ferrú & Elgueta, 2011: 14), Valdivia (EM); Valparaíso: Casablanca, San Felipe de Aconcagua, Valparaíso (Ferrú & Elgueta, 2011: 14), Marga Marga (www.inaturalist.org/)

Notes: Winged, nocturnal, mostly in mountainous regions. On the basis of the material examined, adults are active as a rule in the warm period, from September to February, but they can be observed also in the months of March - May and July - August albeit more rarely.

Calosoma (Castrida) vagans ♂ Dejean, 1831 Chili, Eschscholtz (type of Calosoma vagans Dejean, 1831) (coll. Muséum National d'Histoire Naturelle, Paris)

Calosoma (Castrida) vagans ♂ Dejean, 1831 Chile, Santiago, 12.2.84, Prunier lg.

Calosoma (Castrida) vagans ♀ Dejean, 1831 Chile, Santiago, 12.2.84, Prunier lg.