Laemostenus janthinus is a species in the beetle family Carabidae.[1][2]
Laemostenus janthinus can reach a length of about 14–17.5 millimetres (0.55–0.69 in).[3] It is a nocturnal predator of other small arthropods.
This species can be found in Austria, Bosnia, Croatia, France, Italy, Poland, Slovenia and Switzerland.[4]
This species inhabits forests and Alpine prairies at an elevation of 2000–2400 meters above sea level.[3]