Calosoma (Callisthenes) persianum Morvan, 1974

Callitropa (Blaptosoma) persianum Morvan, 1974: 154 (type locality: Iran, Baloutchestan); holotype ♂ and allotype in Institut de Recherches Entomologiques et Phytopathologiques d'Evine, Teheran
Calosoma (Callisthenes) persianum, Bosquet & al., 2003: 119
Callisthenes persianus, Lorenz, 2005: 72


Length 26-30 mm. This species was described in 1974 based on four specimens collected in Baluchestan in South Eastern Iran, near the borders both of Afghanistan and Pakistan. After the description, no more findings were reported in literature.
In the original description it has been compared to the Mexican Callitropa (Blaptosoma) laeve, with which actually has a superficial resemblance, because of the transverse pronotum and elongated elytra. However, the information provided in the same description, as well as a superficial examination of the types, seem rather suggest that it is a species of the subgenus Callisthenes, as already it is cited in the scientific literature (Bosquet et al., 2003: 119; Lorenz, 2005: 72).
C. persianum, considering the characteristic groove in correspondence with the suture of elytra, the elongated and convex shape and the size, could perhaps have a remote affinity with some eastern population of the regelianum - mirificum group, but the closest of these are located almost 1200 km away as the crow flies.
In conclusion, C. persianum is a good species of Callisthenes, well differentiated from other species for its peculiar characters. The pronotum is transverse with very thick lateral bead and inconspicuous basal dimples. The hind angles are rounded and obtuse, not extending beyond the basal line. The elytra are elongated and convex with a smooth surface, where the striae, of triploid type, are indicated by aligned punctures. The head and pronotum are heavily punctate, the margin of elytra is granulose in its basal part and the upper and under sides of the body are black. The external shape of aedeagus and the ligule are normal, but it should be noted that, according to the original description, the parameres, that are significantly asymmetric, have two very small bristles at their apex. This is an unusual occurrence in Calosoma, even though something similar has been already noted by Jeannel (1940: 21) in C. omiltemium whose parameres present a long apical bristle accompanied by another much less developed.

Examined material
Iran: Kousche (= Gusheh, Khash co., Sistan and Baluchestan prov.) (holotype and allotype)

Notes: Brachypterous. It was captured near a small village at present called Gusheh (Kousche or Goutscheh) on the western slope of Taftan volcano, around 2200m. altitude, in a semi arid environment.

Calosoma (Callisthenes) persianum ♂ Morvan, 1974
Iran: Kousche 23.5.1972, Abai
(holotype; coll. Institut de Recherches Entomologiques et Phytopathologiques d'Evine, Teheran) (photo dr. Sayeh Serri)
Calosoma (Callisthenes) persianum ♀ Morvan, 1974
Iran: Kousche 23.5.1972, Abai
(allolotype; coll. Institut de Recherches Entomologiques et Phytopathologiques d'Evine, Teheran) (photo dr. Sayeh Serri)
Calosoma (Callisthenes) persianum Morvan, 1974
Iran: province de Baloutchestan , Khash, Goutscheh alt. 2200m (Volc. Taftan)
Morvan P. (1974), "Nouveaux coléoptères carabiques de l'Iran (6éme note)",
Journal of the Entomological Society of Iran, 1: 155 , pl.9

last review April 22 2019

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