Calosoma (Callitropa) laeve Dejean, 1826

Calosoma laeve Dejean, 1826: 210, (type locality: Mexique); holotype ♀ designated by Deuve (1978: 247) by monotypy in Muséum National d'Histoire Naturelle, Paris [examined]
Calosoma chevrolati Dejean, 1837: 25 (type locality: Mexique); holotype ♂ designated by Deuve (1978: 247) by monotypy in Muséum National d'Histoire Naturelle, Paris [examined]
Calosoma (Blaptosoma) laeve Breuning, 1928: 46
Blaptosoma (s. str.) laeve Lapouge, 1932: 392
Callitropa (Blaptosoma) laeve Jeannel, 1940: 218
Calosoma (Blaptosoma) chihuahua Gidaspow, 1959: 284 (type locality: Madera, Chihuahua); holotype ♂ and 8 paratypes in American Museum of Natural History, New York
Calosoma (Blaptosoma) laeve Gidaspow, 1959: 284


Length 25-28 mm. All the species previously collected in Blaptosoma have a squat and convex body shape and this is particularly true for laeve and atrovirens. laeve has a strongly transverse pronotum with large rear lobes and it has smooth elytra. It differs, however, more easily from atrovirens because his head has only a superficial punctuation.
It is commonly encountered in central Mexico: Hidalgo, Puebla, Vera Cruz, Michoacán, Mexico, Morelos. It is also found farther north: Nuevo Leon and Chihuahua.
From the state of Chihuahua (Madeira), Gidaspow (1959) described Calosoma (Blaptosoma) chihuahua. It is very similar to C. laeve, of which it has the same type of male copulatory organ, but from which it would differ for the consistently smaller size, the head more finely punctate, and for the lateral margin of the pronotum less wide at the base, as well as for a series of characteristics that could bring it closer to the subgenus Carabomimus, such as the pronotum lacking the apical margin bead, and the scutellum less wide than long. It is difficult to decide about the actual systematic position of this proposed species. The differences from C. laeve, listed in the description, and checked on the typical series, would lead us rather to believe that it is a population of C. laeve, slightly differentiated but not necessarily distinct.

Examined specimens and literature’s data
Mexico. Chihuahua: Madera (sub C. chihuahua; AMNH, NMB), 8.9 km W of Madera, Colonia Garcia (sub C. chihuahua; UASM), 15 Km N. Madera, 2100m (sub C. chihuahua; SB; RS), Pedernales (Gidaspow, 1959: 284), Minaca (UASM); Hidalgo: Tula (EM, SB), Atotonilco (SB), El Solino (SB), Ajacuba (Lassalle & Van Den Berghe, 2013:162); Jalisco: 43 km NE of Tamazula (UASM); Nuevo Leon: Alta Vista (Gidaspow, 1959: 284); Mexico: Chapingo (Gidaspow, 1959: 284), Mexico City (Breuning, 1928 b: 46), Sierra de Guadalupe (SB), Colonia Coyoacán, San Juan Teotihuacán (www.gbif.org), Ixtapaluca (/www.inaturalist.org); Michoacán: Morelia, Patzcuaro (Gidaspow, 1959: 284), Maravatio (Breuning, 1928b: 46); Morelos: Cuernavaca (Breuning, 1928 b: 46); Puebla: Puebla city (Breuning, 1928 b: 46), Tlaxaca (www.inaturalist.org); San Luis Potosi: around the city (Lassalle & Van Den Berghe, 2013:162); Vera Cruz: Perote (Breuning, 1928 b: 46).

Notes: Brachypterous. It lives on upland around 2000 - 2400m. Active individuals have been found from May to August, according to the data of the examined materials, or up to to November, according to Erwin (2007: 97).

Calosoma (Callitropa) laeve
Dejean, 1826
Mexico, Hidalgo: Atotonilco, 24.V.1947, 2.400m., G.v.V. Alffter leg.
Calosoma (Callitropa) laeve
Dejean, 1826
Mexico, Hidalgo: El Solino, 28.VII.1963, F. Sánchez leg.
Calosoma (Callitropa) laeve
Dejean, 1826
Mexique
(holotype of Calosoma chevrolati Dejean, 1837)
(coll. Muséum National d'Histoire Naturelle, Paris)
Calosoma (Callitropa) laeve
Dejean, 1826
Mexico, Chihuahua: Oeste de Madera, VI.66
(sub Calosoma (Blaptosoma) chihuahua Gidaspow, 1959)
(coll. Naturhistorischen Museum Basel)
Calosoma (Callitropa) laeve
Dejean, 1826
Mexico, Chihuahua: Oeste de Madera, VI.66
(sub Calosoma (Blaptosoma) chihuahua Gidaspow, 1959)
(coll. Naturhistorischen Museum Basel)

updated April 3 2020

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