Calosoma Lesnei
''Calosoma'' is a genus of large ground beetles that occur primarily throughout the Northern Hemisphere, and are referred to as caterpillar hunters or caterpillar searchers. Many of the 167 species are largely or entirely black, but some have bright metallic coloration. They produce a foul-smelling spray from glands near the tip of the abdomen. They are recognizable due to their large thorax, which is almost the size of their abdomen and much wider than their head.Powell & Hogue (1979), California Insects. p. 262. History In 1905, ''Calosoma sycophanta'' was imported to New England for control of the Lymantria dispar, gypsy moth. The species is a voracious consumer of caterpillars during both its larval stage and as an adult, as are other species in the genus. For this reason, they are generally considered beneficial insects. Several species of this beetle, most notably the Calosoma semilaeve, black calosoma (''Calosoma semilaeve'') are especially common in the California area. ...
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Calosoma Sycophanta
''Calosoma sycophanta'', the forest caterpillar hunter, is a species of ground beetle belonging to the family Carabidae. Subspecies and varietas * ''Calosoma sycophanta var. severum'' Chaudoir, 1850 * ''Calosoma sycophanta var. nigrocyaneum'' Letzner, 1850 * ''Calosoma sycophanta var. marginatum'' Letzner, 1850 * ''Calosoma sycophanta var. azureum'' Letzner, 1850 * ''Calosoma sycophanta var. purpureoaureum'' Letzner, 1850 * ''Calosoma sycophanta var. cupreum'' Letzner, 1850 * ''Callipara sycophanta rapax'' Motschoulsky, 1865 * ''Calosoma sycophanta var. smaragdinum'' Rossi, 1882 * ''Calosoma sycophanta var. habelmanni'' Schilsky, 1888 * ''Calosoma sycophanta var. purpuripenne'' Reitter, 1891 * ''Calosoma sycophanta ab. corvinum'' Heller, 1897 * ''Calosoma sycophanta ab. anthracinum'' Houlbert, 1907 * ''Calosoma sycophanta prasinum'' Lapouge, 1907 * ''Calosoma sycophanta ab. solinfectum'' Jänichen, 1914 * ''Calosoma sycophanta var. lapougei'' Breuning, 1927 * ''Calosoma (Callipar ...
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