Calosoma (Camedula) parvicolle Fall, 1910

Calosoma parvicollis Fall, 1910: 90 (syntype: California, Pasadena; Museum of Comparative Zoology, Harvard University, Cambridge, Ma)
Calosoma clemens Casey, 1914: 32 (syntype: Las Vegas, Nevada; National Museum of Natural History, Washington)
Calosoma pertinax Casey, 1920: 163 (syntype: Albuquerque, New Mexico; National Museum of Natural History, Washington)
Calosoma (Camegonia) prominens ssp. parvicolle Breuning, 1928: 95
Callitropa (Camegonia) prominens parvicolle Lapouge, 1932: 387
Callitropa (Camegonia) prominens clemens Lapouge, 1932: 387
Callitropa (Camegonia) prominens pertinax Lapouge, 1932: 387
Camedula (Camegonia) parvicolle Jeannel, 1940: 208
Calosoma (Camegonia) parvicollis Gidaspow, 1959: 256
Calosoma (Carabosoma) parvicolle Erwin, 2007: 100


Length 20-22 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.
parvicolle is small, with delicate aspect. The shape of pronotum is similar to prominens, but less transverse. The elytra are oblong, the striae are usually visible, and there are some large punctures on the basal part of elytra.
parvicolle superficially resembles to sponsa, but has much more transverse pronotum. Its male's copulatory organ, as happens in sponsa, has an apex slender and elongated, but the apex of the ligule is sharply curved, as happens in marginale and prominens.
It is found in the south-western United States and northern Mexico.

Examined specimens and literature’s data
Mexico. Baja California: Baja California (Gidaspow, 1959: 256), Catavina, Sierra la Giganta, La Paz (http://bajanature.com/); Jalisco: road Guadalajara – Zacatecas 1500m (EM); Sonora: La Choya, Puerto Libertad (Gidaspow, 1959: 256).
United States. Arizona: Pima County (EM, SB), Santa Cruz County (EM), Organ Pipe Cactus Nat. Mon. (SB); California: San Bernardino, Riverside, Pasadena, Mojave, Indipendence (Breuning, 1928a: 97), Lowell (sub eremicola AMNH), San Diego County (sub eremicola AMNH); Neming (Gidaspow, 1959: 256); Utah: Emery county, Utah county (Gidaspow, 1959: 256).

Notes: Winged, diurnal as well nocturnal and attracted to light at night. It lives in desert and dunes, in lowlands up to an altitude of 200m. (Erwin 2007: 100), and it feeds mostly on lepidopterous caterpillars. Adults are active from May to September, according to data of the examined material.

Calosoma (Camedula) parvicolle
Fall, 1910
United States, Arizona: Pima County,
Green Valley, V.73 Lenczy leg.
Calosoma (Camedula) parvicolle
Fall, 1910
United States, Arizona: Pima County,
Green Valley, V.73 Lenczy leg.

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