Calosoma (Carabops) burtoni Alluaud, 1913

Calosoma Burtoni Alluaud, 1913: 80 (described from: "région du lac Tanganyika"); type material 1 ♂ 2 ♀ ♀, lectotype ♀ (Tanganyka See) designated by Deuve (1978: 248) in Muséum National d'Histoire Naturelle, Paris [examined]
Calosoma (Carabomorphus) burtoni Breuning, 1928: 129
Carabomorphus (Carabosophorus) burtoni Lapouge, 1932: 399
Carabops Burtoni Jeannel, 1940: 136

Length 20-27 mm. It is easily recognizable among the other species of the subgenus, if you consider the color of the upper body: head and pronotum matte black or sometimes with weak metallic reflections and elytra purplish brown. Head and pronotum are heavily wrinkled, the pronotum moderately transverse, posteriorly narrowed, weakly heart-shaped. The elytra are relatively short and are enlarged in the posterior third. The sculpture of the elytra has all the 16 intervals of the same width and height (sculpture "homodyname" of Jeannel) and all strongly transversely incised.
It has been found in northwestern Tanzania: the mountainous regions between Lake Tanganyika and Lake Malawi (Mbeya and in the south of the Iringa region).
Breuning (1927:129) reported its capture from the mountain ranges near the lake Bagweulu in northeastern Zambia, but this quote has been deemed incorrect by Basilewsky (1984: 628).

Examined specimens and literature’s data
Tanzania. Tanganyika Lake (type, MNHN); Nyasa See (MCZR, NMP); Nyassa (RMCA); Mtwara region: Lukuledi (SB, doubtful data); South Iringa region (Njombe distr.), Ussangu (Breuning, 1928a: 129); Mbeya region Mt.Mbogo, Umalila forêt 2300m (SB; EM).

Notes: Brachypterous, the hind wings reduced to a stump less than a quarter of the abdomen total lenght (Imura & al, 2018: fig. 6). Based on the examined capture data, the species is active at the beginning of the rains in December and could remain in activity for the entire rainy period until April.
The species is named after Sir Richard Francis Burton (1821–1890) the famous British explorer, discoverer of Lake Tanganyika.

Calosoma (Carabops) burtoni
Alluaud, 1913
Tanganyika See (lectotype)
(Muséum National d'Histoire Naturelle, Paris)
Calosoma (Carabops) burtoni
Alluaud, 1913
Lukuledi, Ost. Afr. /Niassa

updated February 20 2021

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