Calosoma (Chrysostigma) cancellatum Eschscholtz, 1833

Calosoma cancellatum Eschscholtz, 1833: 23 (described from San Francisco)
Calosoma aenescens LeConte, 1854: 16 (described from Fort Vancouver, Washington; syntype in Museum of Comparative Zoology, Harvard University, Cambridge, Ma)
Tapinosthenes cancellatum Kolbe, 1895: 57
Calosoma esuriens Casey, 1913: 64 (described from San Diego, California; syntype in National Museum of Natural History, Washington)
Calosoma transversa Casey, 1913: 64 (described from San Diego, California; syntype in National Museum of Natural History, Washington)
Calosoma sagax Casey, 1920: 158 (described from Lassen Co., California; syntype in National Museum of Natural History, Washington)
Calosoma rectilatera Casey, 1920: 158 (described from Palm Spring, California; syntype in National Museum of Natural History, Washington)
Calosoma praestans Casey, 1920: 159 (described from Butte Co., California; syntype in National Museum of Natural History, Washington)
Calosoma (Tapinosthenes) cancellatum Breuning, 1928: 90
Callisthenes (Tapinosthenes) cancellatus Lapouge, 1931: 377
Callisthenes (Tapinosthenes) cancellatus aenescens Lapouge, 1931: 377
Callisthenes (Tapinosthenes) cancellatus esuriens Lapouge, 1931: 377
Callisthenes (Tapinosthenes) cancellatus transversus Lapouge, 1931: 377
Callisthenes (Tapinosthenes) sagax Lapouge, 1931: 377
Callisthenes (Tapinosthenes) rectilaterus Lapouge, 1931: 377
Callisthenes (Tapinosthenes) praestans Lapouge, 1931: 377
Chrysostigma cancellatum Jeannel, 1940:166
Calosoma (Chrysostigma) cancellatum Gidaspow, 1963: 262
Callisthenes (Chrysostigma) cancellatus Erwin, 2007: 76


Length 15-22 mm. cancellatum is easily recognizable because of its sculpture of elytra of "hétérodyname" type in which the primary intervals are more raised consisting in series of aligned grains with foveae with a greenish bottom, the secondary and tertiary ones confluent and dissolved in rough granules. The pronotum is transverse, not narrowed at the base, with relatively large rear lobes.
It is located on the western side of the Rocky Mountains from southern western Canada to California.

Examined specimens and literature’s data
Canada. British Colombia (Gidaspow, 1959: 263)
United States. California: Stanton (SB), Yolo County, Davis (MNHN), Garden Grove (AMNH), Compton (Burgess & Collins, 1917: 112), San Diego (type of esuriens, Gidaspow, 1959: 263), Sacramento (sub aenescens, Burgess & Collins, 1917: 113), Butte county (sub praestans, Gidaspow, 1959: 263); Oregon: Clemath County (AMNH); Washington: Fort Vancouver (type of aenescens, Burgess & Collins, 1917: 111); Arizona, Montana, Idaho, Nevada, Utah (Burgess & Collins, 1917: 111).

Notes:Micropterous. Adults are diurnal, active in sunshine but larvae are nocturnal and conceal themselves in leaf litter under plants during the day. It can be found in lowlands and midlands up to 1300m altitude, and lives on open ground, frequently on cultivated fields. Adults and larvae lives near the ground and are predators of lepidpterous caterpillars, but the adults also eat other insects as elaterids, flies and orthopterans. Adult have been found active from April to September (Larochelle & Larivière, 2003: 175).
The description of larva in all stages and pupa has been given by Burgess & Collins (1917: 112).

Calosoma (Chrysostigma) cancellatum Eschscholtz, 1833 ♂
United States: Oregon, Clemath County, Bonanza,
16.V.1962 J D Vertrees
(coll. American Museum of Natural History, New York)
Calosoma (Chrysostigma) cancellatum Eschscholtz, 1833 ♀
United States: California, Stanton. VI, 20, 1927


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