Carabus rutilans
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Carabus rutilans |
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| ( Dejean , 1826) |
Carabus rutilans is a beetle from the family of ground beetles and the subfamily carabinae .
The genus name Carabus , like the names of the higher taxa up to the family (Carabina, Carabini, Carabinae, Carabidae) is derived from the ancient Greek κάραβος = kárabos. The species name rutilans ( Latin ) means "shimmering reddish".
The attractive appearance of the stately beetle makes it a coveted collector's item and contributes to the fact that it is bred by lovers. The hybridization of Carabus rutilans with Carabus hispanus provides the colorful Carabus croesus . The writer Ernst Jünger chose "Carabus rutilans" as the title for a Parergon and describes a journey with the aim of capturing the beautiful beetle.
The handsome beetle is only found in the eastern Pyrenees . Despite the limited distribution area, the species has split into three subspecies with numerous forms. In addition to the nominate form Carabus rutilans rutilans , the subspecies Carabus rutilans opulentus and Carabus rutilans perignitus also occur.
Characteristics of the beetle
The beetle has the shape typical for the genus with the elongated head stretched forward with arched eyes , eleven-limbed thread-like antennae and six long legs with five-limbed tarsi . The strong, inwardly curved upper jaw with an inner tooth as well as the almost triangular truncated end links of the four-part lip and three-part jaw palpation are clearly visible from above (Fig. 1).
The underside of the body of the 24 to 27 millimeter large beetle is black, as are the legs and antennae. The head, pronotum and elytra are golden-green or coppery and very shiny. The pronotum is finely wrinkled across (Fig. 1). The wing covers show three shallow lines of small dots and three rows of large green-gold pits (Fig. 2).
biology
Larvae and adults of Carabus rutilans are predatory. The species feeds on worms , slugs and snails . The beetle pursues the prey, which it tracks down in rotting leaves.
The species is found from April to September under stones and in rotting vegetation near streams in moist but sparse forests, mainly of beech and chestnut , but also of oak and pine at medium heights up to a height of 2200 meters. The animals overwinter in tree stumps or under moss.
distribution
Carabus rutilans is found in a narrowly defined area between the French part of the eastern Pyrenees and the northern border of the province of Barcelona . The subspecies Carabus rutilans opulentus and Carabus rutilans perignitus occur only in the Spanish part of the eastern Pyrenees, while the nominate form Carabus rutilans rutilans also occurs in the French part.
literature
- Gustav Jäger (Ed.): CG Calwer’s Käferbuch . K. Thienemanns, Stuttgart 1876, 3rd edition
Individual evidence
- ↑ a b c Carabus rutilans in Fauna Europaea. Retrieved August 22, 2011
- ↑ Sigmund Schenkling: Explanation of the scientific beetle names.
- ↑ Pictures of egg, larva, pupa and various stages of coloration of the newly hatched imago on a French forum page ( Memento of the original from December 9, 2015 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Ernst Jünger: Essays IV Volume 10 "Subtile Hunts, Parerga to Subtile Hunts Stuttgart." Klett-Cotta. 1980
- ↑ a b F Ferrer, Vert: "Notas coleopterologicas II. Sobre el Carabus rutilans Dej. y ses varietats catalanes “Butlletí de la Institució Catalana d'História Natural Volum 10 núm. 8-9 novembre-desembre 1910 p. 90-92
