''Calosoma reticulatum'', is a species of

ground beetle Ground beetles are a large, cosmopolitan distribution, cosmopolitan family (biology), family of beetles, the Carabidae, with more than 40,000 species worldwide, around 2,000 of which are found in North America and 2,700 in Europe. As of 2015, it i ...

native to

northern Europe The northern region of Europe has several definitions. A restrictive definition may describe Northern Europe as being roughly north of the southern coast of the Baltic Sea, which is about 54th parallel north, 54°N, or may be based on other g ...

and

Central Europe Central Europe is an area of Europe between Western Europe and Eastern Europe, based on a common historical, social and cultural identity. The Thirty Years' War (1618–1648) between Catholicism and Protestantism significantly shaped the area' ...

. It occurs in open steppe areas and in fields (in particular, beet). In Europe, most of the finds were made in dry steppes and pine forests, on sandy soil. Beetles are active in spring and early summer, but also occur in August-September. Egg laying is carried out in May-June, on average, the female lays 60-70 eggs. Preimaginal development lasts about 2 months. Beetles overwinter in the soil. The new generation appears in April, early May. Predator-polyphage; hunts at night mainly for caterpillars, as well as other invertebrates.

References

Calosoma inquisitor (Linnaeus, 1758)

External links

reticulatum Beetles of Europe Beetles described in 1787 {{Calosoma-stub