Calosoma (Ctenosta) guineense Imhoff, 1843
Calosoma guineense Imhoff, 1843: 164 (type: Aquapim; Muséum National d'Histoire Naturelle, Paris)
Calosoma guineense Breuning, 1927: 160
Calosoma colmanti Burgeon, 1928: 431 (type: Sassa, Musée Royal de l'Afrique Central, Tervuren)
Calosoma (Callipara) guineensis Lapouge, 1932: 404
Ctenosta (Paractenosta) guineense Jeannel, 1940: 131
Length 22-26 mm. Both sexes have unmistakable characteristics that allow easily to distinguish them from the other species of the subgenus: tarsi with red gold hair on the underside, protibiae with apical ends dilated, and in the males with a series of indentations on the external side. These characteristics led Breuning (1928) towards the creation of the subgenre Paractenosta. The species is easily recognizable even to a cursory examination for the sculpture of the elytron with intervals of the same width and heigth ("omodyname" sculpture of Jeannel), smooth and only slightly raised, and for the bronze-purple color of the upper body.
It is present in West Africa: Côte d'Ivoire, Togo, Nigeria, Congo.
Examined specimens and literature’s data
Central African Republic: Bangui, foret de Bimbo (EM, SB); Sassa (type of Calosoma colmanti, MRCA)
Côte d'Ivoire: Comoe (SB), Lamto (SB)
Democratic Republic of the Congo: Kolwezi (EM, SB), Medje (Breuning, 1927: 160), Kassai (Jeannel, 1940: 131)
Ghana: Akuapim dist. (type of Calosoma guineense MNHN)
Nigeria: Ibadan (Breuning, 1927: 160)
Togo (Breuning 1927: 160)
Notes: Winged. Active individuals were found just before the beginnig of the raining season, in March and April, as well as after its ending, in October and November.
Cote d'Ivoire: Comoe, IV.98
Cote d'Ivoire: Lamto, 5°02'W 6°13'N, 15.III.86, Rasplus lgt.