Colostygia turbata
Bedstraw Alps tensioner ( Colostygia turbata ), female
The cleaver - Alps tensioner ( Colostygia turbata ), formerly erroneously written Colostigia turbata, is a butterfly (moth ) from the family of the tensioner ( Geometridae ).
- 6.1 Notes and references
- 6.2 Literature
Features
Butterfly
The moths reach a wingspan of about 24 to 30 millimeters. Striking is an alternating black and white or brown white color pattern on the forewings. So shows a typical wing drawing the following color sequence: a small region at the wing root is dark gray, the subsequent basal light gray, broad and strongly serrated outward Diskalregion tinted to dark brown to black, the Postdiskalregion gray white and the Submarginalregion brown gray. The transitions between the various regions are offset partially sharp, but occasionally indistinct. In the Diskalregion is a kidney-shaped spot. The hind wings shimmer silky white and bounded on the outside by a dark gray band. In addition, a very small black center spot is visible. The antennae of the males are combed, those of the females thready.
Egg, caterpillar, pupa
The egg is oval in shape, is initially yellowish and later takes on a pink color.
Adults caterpillars have a dark brown color, a black dorsal line and an indistinct black yellow side stripes.
The pupa is light brown in color.
Geographical distribution and occurrence
The distribution area of Colostygia turbata ranges from the Pyrenees and the Alps across the Carpathians to the Balkans. In the north, the species is found north of the Arctic Circle in some areas. The eastern occurrence extends beyond the Altai Sayan Mountains and to Kamchatka. There are also deposits in Canada. In the Alps you will find the type at altitudes 900-2500 m. It inhabits prefers moist places in mountainous areas.
Subspecies
- Colostygia turbata turbata, (Alps, South-East Europe )
- Colostygia turbata fuscolimbata, ( Nordeuropea )
- Colostygia turbata pyrenaearia, (Pyrenees)
- Colostygia turbata altaicata, ( Altai, Siberia, Kamchatka )
- Colostygia turbata circumvallaria, (Canada)
Way of life
The moths fly in the months of May to August. They are predominantly diurnal and fly less frequently to artificial light sources. The caterpillars feed on the leaves of Labkrautarten ( Galium ). They overwinter. The pupate in a cocoon in the earth.
Endangering
Colostygia turbata comes in Bavaria before secured, is widely used there and is therefore managed on the Red List of Threatened Species as not at risk. Older information about discoveries in Baden- Württemberg are doubtful or based on the error.