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Calosoma macrum is a species of ground beetle in the subfamily Carabinae. It was described by John Lawrence LeConte in 1853. The species is 24–30 millimetres (0.94–1.18 in) long, black, and lives at an elevation of 1,000 to 1,600 metres (3,300 to 5,200 ft).
Adults are large-bodied and black, with very long antennae; in males, they can be up to twice the body length, but in females they are only slightly longer than body length. Both sexes have a white spot on the base of the wings, and may have white spots covering the wings. Both males and females also have a spine on the side of the prothorax. [2]
The black carpet beetle (Attagenus unicolor) is a 3–5-millimetre-long (0.12–0.20 in) beetle that can be a serious household pest. The larvae grow to 7 mm (0.28 in) in length, are reddish brown in colour and covered with bristles. The larval form feeds on natural fibres, damaging carpets, furniture and clothing.
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.
Calosoma sayi, also known as "Say's caterpillar hunter or "Black Caterpillar Hunter", [1] [2] is a species of ground beetle of the subfamily Carabinae. [3] It was described by Pierre François Marie Auguste Dejean in 1826. [3] A large, lustrous black beetle found throughout the United States, its habitat is fields and disturbed areas.
A Big-headed Ground Beetle with a mealworm, which it would later eat. They're willing to eat a variety of invertebrates. Scarites subterraneus , known generally as the big-headed ground beetle or (tunneling large) pedunculate ground beetle , is a species of ground beetle in the family Carabidae .