Calathus
Big Kahn runners ( Calathus fuscipes )
The Kahn rotor, centrifugal beetles, or wide neck runner ( Calathus ) are a genus of beetles in the family of ground beetles ( Carabidae ). In Europe, the genus is represented by 82 species. , Which come in nine Central European species.
Features
The beetles are 6-14 mm long and usually have a black colored body is elongated oval shaped. Her forehead has no red spots, what distinguishes them from the flight beetles ( Dolichus ). Your pronotum is usually rectangular in shape. The jaws are serrated like a comb on the inside, The Epileuren the elytra are not crossed in front of the tip. The tarsi and rails ( tibiae ) of the hind legs are about the same length.
Occurrence and life
The animals live in forests and fields, especially on sandy soils. They are commonly found throughout Central Europe from March to October. Overwintering takes place as a larva, the imagos hatch in the spring.
Types (selection)
- Big Kahn runner or Braunfüßiger wide neck beetle ( Calathus fuscipes ) ( Goeze, 1777)
- Schmalhalsiger Kahn runners ( Calathus erratus ) (CR Sahlberg, 1827)
- Breithalsiger Kahn runners ( Calathus ambiguus ) ( Paykull, 1790)
- Small boat runners ( Calathus micropterus ) ( Duftschmid, 1812)
- Rothals -Kahn runner or Black-headed wide neck runner ( Calathus melanocephalus ) ( Linnaeus, 1758)
- Sand -Kahn runners ( Calathus cinctus ) ( Motschulsky, 1850)
- Forest -Kahn runners ( Calathus rotundicollis ) Dejean, 1828