Calosoma (Ctenosta) bastardi Alluaud, 1925

Calosoma Bastardi Alluaud, 1925: 163 (type: pais Mahafaly; Muséum National d'Histoire Naturelle, Paris)
Calosoma (Eucalosoma) bastardi Breuning, 1927: 182
Eucalosoma Bastardi Lapouge, 1930: 93
Ctenosta (Eucalosoma) bastardi Jeannel, 1940: 126


Length 25-33 mm. This and grandidieri, the other endemic species of Madagascar, were put together by Breuning (1928) in the subgenus Eucalosoma. A peculiarity of their chaetotaxy (presence of one seta on the metatrochanter) distinguishes them from other species of Ctenosta.
bastardi, in turn, can be easily recognized because it has the metatrochanter with a rounded tip and the upper body has a bright blue color, sometimes greenish.
It is found in the south east of Madagascar.

Examined specimens and literature’s data:
Madagascar: Mahafaly (type MNHN); Tsiombe, Beloha (Alluaud, 1925: 163); Toliara prov., Sakaraha (EM, SB); forêt d’Andranovory (RMCA).

Notes: Winged. Active individuals were found during the hot rainig season, from December to February.
The species has been dedicated to Eugène Joseph Bastard (1865-1910), French naturalist and colonial administrator in Madagascar where he made important entomological collections.

Calosoma (Ctenosta) bastardi
Alluaud, 1925
Madagascar, Pais Mahafaly (holotype)
(coll. Muséum National d'Histoire Naturelle, Paris)
Calosoma (Ctenosta) bastardi
Alluaud, 1925
Southern Madagascar, Sakaraha, XII.88
Calosoma (Ctenosta) bastardi
Alluaud, 1925
Southern Madagascar, Sakaraha, XII.88

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