Adults are predominantly found under rocks, logs, leaves, bark, decomposing wood and other debris on the ground. They are also found in freshly harvested grain, as well as in homes if food becomes scarce or outside moisture conditions are unfavorable. (Borron and White, 1970; White, 1983)
- Terrestrial Biomes
- Other Habitat Features
- Range length
- 25 to 30 mm
- 0.98 to 1.18 in
The beetle goes through egg, larval, and pupal stages of development before reaching adulthood. The eggs of ("Virginia Cooperative Extension - Ground Beetle", August 1996; Swan and Papp, 1972)are laid in the soil. After the eggs hatch, the larva mature within two to three weeks, during which they feed underground and then pupate and metamorphosis. After emerging as an adult, the beetle remains in the pupal cell, where it hibernates until the following spring; older adults also enter the soil to hibernate.
- Development - Life Cycle
- Breeding season
After eggs are laid by the female, there is no further parental investment.
- Parental Investment
- Typical lifespan
- 2 to 4 years
- Typical lifespan
Lymantria dispar) caterpillars and pupae, cankerworms, cutworms, and other forest caterpillars. Members of the Calosoma genus are often referred to as "caterpillar hunters." The larvae, like the adults, also feed on pupae and caterpillars. are one of the only known ground beetles to regularly climb plants to forage. Larvae also climb trees in search of prey, requiring more food than do adults. An individual larva feeds day and night, consuming 50 caterpillars during its two-week developmental period. A single adult will eat several hundred caterpillars during its lifetime. (Klots and Klots, 1959; Linsenmaier, 1972; Swan and Papp, 1972)is a predator, feeding on tent caterpillars, gypsy moth (
- Animal Foods
Economic Importance for Humans: Positive
The presence of (Mahr, 2001)can help regulate outbreaks of gypsy moths by consuming gypsy moth larvae. Gypsy moths can be devestating to trees as their larvae consume huge amounts of plant material every year.
- Positive Impacts
- controls pest population
Economic Importance for Humans: Negative
does not have a negative economic influence on humans.
has no special status.
Sara Diamond (editor), Animal Diversity Web.
Harvey Liu (author), Southwestern University, Stephanie Fabritius (editor), Southwestern University.
living in the Nearctic biogeographic province, the northern part of the New World. This includes Greenland, the Canadian Arctic islands, and all of the North American as far south as the highlands of central Mexico.
living in the northern part of the Old World. In otherwords, Europe and Asia and northern Africa.
living in landscapes dominated by human agriculture.
- bilateral symmetry
having body symmetry such that the animal can be divided in one plane into two mirror-image halves. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. Synapomorphy of the Bilateria.
an animal that mainly eats meat
animals which must use heat acquired from the environment and behavioral adaptations to regulate body temperature
union of egg and spermatozoan
forest biomes are dominated by trees, otherwise forest biomes can vary widely in amount of precipitation and seasonality.
having a body temperature that fluctuates with that of the immediate environment; having no mechanism or a poorly developed mechanism for regulating internal body temperature.
the state that some animals enter during winter in which normal physiological processes are significantly reduced, thus lowering the animal's energy requirements. The act or condition of passing winter in a torpid or resting state, typically involving the abandonment of homoiothermy in mammals.
An animal that eats mainly insects or spiders.
- internal fertilization
fertilization takes place within the female's body
referring to animal species that have been transported to and established populations in regions outside of their natural range, usually through human action.
A large change in the shape or structure of an animal that happens as the animal grows. In insects, "incomplete metamorphosis" is when young animals are similar to adults and change gradually into the adult form, and "complete metamorphosis" is when there is a profound change between larval and adult forms. Butterflies have complete metamorphosis, grasshoppers have incomplete metamorphosis.
having the capacity to move from one place to another.
- native range
the area in which the animal is naturally found, the region in which it is endemic.
active during the night
reproduction in which eggs are released by the female; development of offspring occurs outside the mother's body.
- seasonal breeding
breeding is confined to a particular season
reproduction that includes combining the genetic contribution of two individuals, a male and a female
that region of the Earth between 23.5 degrees North and 60 degrees North (between the Tropic of Cancer and the Arctic Circle) and between 23.5 degrees South and 60 degrees South (between the Tropic of Capricorn and the Antarctic Circle).
Living on the ground.
August 1996. "Virginia Cooperative Extension - Ground Beetle" (On-line). Accessed February 15, 2001 at http://www.ext.vt.edu/departments/entomology/factsheets/groundbe.html.
Borron, D., R. White. 1970. A Field Guide to Insects American North of Mexico. New York: Houghton Mifflin Company.
Headstrom, R. 1977. The Beetles of America. London: A. S. Barnes.
Klots, A., E. Klots. 1959. Living insects of the World. Garden City, New York: Doubleday and Company, Inc.
Linsenmaier, W. 1972. Insects of the World. Newyork: McGraw-Hill Book Company.
Mahr, S. 2001. "Know Your Friends: Ground Beetles" (On-line). Accessed February 15, 2001 at http://www.entomology.wisc.edu/mbcn/kyf304.html.
Road, K. 1991. "Ohio State University Extension Fact Sheet: Entomology" (On-line). Accessed February 15, 2001 at http://www.ag.ohio-state.edu/~ohioline/hyg-fact/2000/2102.html.
Schaefer, P., R. Fuester, P. Tayler, S. Barth, E. Simons,. Jul 1999. Current Distribution and Historical Range Expansion of Calosoma Sycophanta (L.)(Coleoptera: Carabidae) in North America. Journal of Entomological Science [J. Entomol. Sci.], vol. 34, no.3: 339-362.
Swan, L., C. Papp. 1972. The Common Insects of North America. New York: Harper and Row.
White, R. 1983. A Field Guide to the Beatles of North America. Boston: Houghton Mifflin Company.