Calosoma (Camedula) prominens LeConte, 1853

Calosoma angulatum LeConte, 1851: 199 (nec Chevrolat, 1840) (described from Pimas, Arizona; holotype in Museum of Comparative Zoology, Harvard University, Cambridge, Ma)
Calosoma prominens LeConte, 1853: 400 (nomen novum pro angulatum LeConte, 1851)
Calosoma (Camegonia) prominens Breuning, 1928: 95
Callitropa (Camegonia) prominens Lapouge, 1932: 387
Camedula (Camegonia) prominens Jeannel, 1940: 207
Calosoma (Camegonia) prominens Gidaspow, 1959: 281
Calosoma (Carabosoma) prominens Erwin, 2007: 102


Length 25-35 mm. marginale, parvicolle and prominens were included toghether in the ancient Camegonia subgenus (sensu Jeannel, 1940), characterized by the lack of setae on the metatrochanters. All the species have an aspect entirely glossy and a black colour, sometimes with very faint metallic reflections.
prominens is easily recognizable because of its size, from medium to large. It has a pronotum with definitely angular sides, and the surface of the elytra is striated . In the basal part of elytra, the intervals are scaly, with transverse wrinkles, connecting punctures on the striae
C. prominens is found in the south-western United States: Eastern California, Arizona, New Mexico and Texas. It is also present in northern Mexico: Baixa California, Sonora, Chihuahua, Durango.

Examined specimens and literature’s data
Mexico. Baja California (Horn, 1893: 307); Chihuahua: Minaca (UASM); Durango: Rio Nazas near Rodeo (UASM); Sonora: Magdalena de Kino, Agua Prieta, Peon, Mazatan, Hermosillo, Santa Ana, El Oasis (UASM), Agua Zarca, Obregon, Carbo (Gidaspow: 1959, 255).
United States. Arizona: Santa Cruz County, Rio Rico (EM, SB), Cochise County, San Bernardino, Phoenix, Jerome (Breuning, 1928a: 97), Pima County (EM, SB), Yavapai County (SB), Gila County (SB); New Mexico: Coolidge, Albuquerque (Breuning, 1928a: 97); Texas: El Paso County (UASM); California: Inyo County (Bousquet, 2012: 234)

Notes: Winged, attracted to light at night, sometime swarming in very large number. It lives in desert or semidesertic areas, from lowlands up to an altitude of 2000m. Active individuals have been found from July to October.

Calosoma (Camedula) prominens
LeConte, 1853
United States, Arizona: Pima County,
Green Valley, VII.74 Lenczy leg.
Calosoma (Camedula) prominens
LeConte, 1853
United States, Arizona: Pima County,
Green Valley, VII.74 Lenczy leg.

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