Carabus problematicus

{{Short description|Species of beetle}}

{{Speciesbox

| image = Carabus problematicus Herbst, 1786 (2971073187).jpg

| genus = Carabus

| species = problematicus

| authority = Herbst, 1786

}}

Carabus problematicus is a species of beetle endemic to Europe, where it is observed in Andorra, Austria, Belgium, Great Britain,[http://data.gbif.org/species/14861791/ Global Biodiversity Information Facility]{{dead link|date=November 2016 |bot=InternetArchiveBot |fix-attempted=yes }} the Czech Republic, mainland Denmark, the Faroe Islands, Finland, mainland France, Germany, Hungary, Iceland, Ireland,[http://www.habitas.org.uk/groundbeetles/species.asp?item=7139 Groundbeetles of Ireland] mainland Italy, Latvia (doubtful), Liechtenstein, Luxembourg, mainland Norway, Poland, Romania, northern and northwestern Russia, Slovakia, Slovenia, mainland Spain, Sweden, Switzerland, and the Netherlands.

A study of the effects of grazing management on arthropod distribution observed high number clusters of C. problematicus associated with the sheep rather than sheep and cattle grazed plots – suggesting that there are detrimental effects of cattle to the species; possibly as a result of soil compaction.Peter Dennis Sensitivity of upland arthropod diversity to livestock grazing, vegetation structure and landform Food, Agriculture & Environment Vol. 1(2): 301-307. 2003