Calosoma (Castrida) trapezipenne Chaudoir, 1869

Calosoma imbricatum Brullé, 1843:42 (preoccupied by imbricatum Klug, 1832) (type: Patagonia; Muséum National d'Histoire Naturelle, Paris)
Calosoma trapezipenne Chaudoir, 1869: 369 (type: Mendoza; Muséum National d'Histoire Naturelle, Paris)
Calosoma Orbignyi Géhin, 1885: 59 (new name for imbricatum Brullé, 1843)
Caminara (Catastriga) trapezipenne Lapouge, 1929: 9
Calosoma (Callistriga) trapezipenne Breuning, 1927: 203
Castrida (Catastriga) trapezipenne Jeannel, 1940: 93
Calosoma (Castrida) trapezipenne Gidaspow, 1963: 287

Length 22-25 mm. As Calosoma (Castrida) bridgesi and all the endemic species of Galapagos islands, trapezipenne is characterized by the elytral margin even, without trace of serration.
trapezipenne is easily recognizable for its pronotum strongly transverse and for the elytra in oval widened. As bridgesi it is characterized by the presence of a seta on the metatrochanter, unlike other species of Castrida. The upper body is reddish bronze. Lapouge created for this species the subgenus Catastriga that was mantained by Jeannel (1940) as subgenus of the genus Castrida, but considered superfluous by Gidaspow (1963) and by the later authors.
It occurs in the Western plateau of Argentina: San Juan, Mendoza, Cordóba (Sierra de Cordóba), Rio Negro (hills of Rio Negro), down to the provincias of south Patagonia (Jeannel, 1940: 93).

Examined specimens and literature’s data
Argentina: Patagonia (type imbricatum Brullé; MNHN); Mendoza (type trapezipenne Chaudoir; MNHN); Rio Negro: Cipolletti (SB), Villa Regina (SB), Lamarque (Gidaspow, 1963: 288); Cordoba (Breuning, 1927: 203); Catamarca: Santa Maria (Gidaspow, 1963: 288).

Notes: Winged. According to Gidaspow (1963: 288) it can be found in xerophyte forests and around dry bush and desert scrub, but not common. On the basis of the material examined were noted captures of active individuals after the end of the raining season from November to January.
vagans

Calosoma (Castrida) trapezipenne
Chaudoir, 1869
Patagonia (holotype of Calosoma imbricatum Brullé, 1843)
(Muséum National d'Histoire Naturelle, Paris)
Calosoma (Castrida) trapezipenne
Chaudoir, 1869
Mendoza (holotype)
(Muséum National d'Histoire Naturelle, Paris)
Calosoma (Castrida) trapezipenne
Chaudoir, 1869
Argentina: Rio Negro, Cipolletti, I.57
Calosoma (Castrida) trapezipenne
Chaudoir, 1869
Argentina: Rio Negro, Villa Regina, XI.63

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