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Carabus violaceus purpurascens Fabricius, 1787 ♂

Carabus violaceus-M-Tubize1.jpg <b><i>Carabus violaceus purpurascens</b></i> Fabricius, 1787 ♂||<img src=./_datas/t/6/y/t6ynvw9sux/i/uploads/t/6/y/t6ynvw9sux//2020/09/06/20200906181509-99478d37-th.jpg>Thumbnails<b><i>Catocala nupta</b></i> Linnaeus, 1767||<img src=./_datas/t/6/y/t6ynvw9sux/i/uploads/t/6/y/t6ynvw9sux//2020/08/04/20200804164845-16403ba3-th.jpg><b><i>Carabus violaceus purpurascens</b></i> Fabricius, 1787 ♂||<img src=./_datas/t/6/y/t6ynvw9sux/i/uploads/t/6/y/t6ynvw9sux//2020/09/06/20200906181509-99478d37-th.jpg>Thumbnails<b><i>Catocala nupta</b></i> Linnaeus, 1767||<img src=./_datas/t/6/y/t6ynvw9sux/i/uploads/t/6/y/t6ynvw9sux//2020/08/04/20200804164845-16403ba3-th.jpg><b><i>Carabus violaceus purpurascens</b></i> Fabricius, 1787 ♂||<img src=./_datas/t/6/y/t6ynvw9sux/i/uploads/t/6/y/t6ynvw9sux//2020/09/06/20200906181509-99478d37-th.jpg>Thumbnails<b><i>Catocala nupta</b></i> Linnaeus, 1767||<img src=./_datas/t/6/y/t6ynvw9sux/i/uploads/t/6/y/t6ynvw9sux//2020/08/04/20200804164845-16403ba3-th.jpg><b><i>Carabus violaceus purpurascens</b></i> Fabricius, 1787 ♂||<img src=./_datas/t/6/y/t6ynvw9sux/i/uploads/t/6/y/t6ynvw9sux//2020/09/06/20200906181509-99478d37-th.jpg>Thumbnails<b><i>Catocala nupta</b></i> Linnaeus, 1767||<img src=./_datas/t/6/y/t6ynvw9sux/i/uploads/t/6/y/t6ynvw9sux//2020/08/04/20200804164845-16403ba3-th.jpg>

Carabus violaceus purpurascens Fabricius, 1787 ♂
Common names: Violet Ground Beetle [En], Carabe purpurin, Carabe violet [Fr], Paarse loopkever [Nl], Goldleiste, Violette Laufkäfe [De], Carabo violetto [It]

Tubize, BRABANT ● Belgium

Description: This widespread and generally common species includes at least 10 subspecies are recognized.
It is entirely dull or silky black with metallic violet, blue or greenish margins to the pronotum and elytra. The head is quadrate with prominent mandibles and eyes, the vertex and frons rugose and the labrum gently incurved anteriorly. The palps are long and prominent with the apical segment expanded and truncate apically. The antennae entirely dark. The pronotum is transverse with rounded anterior angles, backwardly-produced posterior angles and distinct lateral and basal borders. Its surface is rugose. The elytra are long and evenly curved laterally to continuously rounded apices, suture fused, with a narrow and metallic explanate margin. The surface is rugose, and in purpurascens, the elytra are more elongate and heavily sculptured, and the basal margin without a border. The legs are entirely dark metallic, the anterior tibiae smooth along the inner margin i.e. without an antenna-cleaning notch, and all tibiae have 2 strong spurs on the inner apical angle.
The males are distinct in having the basal pro-tarsomeres dilated.

Biology: Adults occur throughout the year and are nocturnal, spending the day under logs and bark etc. or in the soil. They are flightless, become active at dusk and may cover a wide area as they move rapidly in search of prey. Both adults and larvae are predatory, consuming mostly soft-bodied prey such as slugs, snails, worms and insect larvae but will take a wide range of food as necessary.
Adults may be long-lived and overwinter after breeding, they are active and continue feeding in all but the coldest weather when they will remain inactive under logs or in the soil until the temperature increases. During the warmest summer months they may also aestivate in the soil until conditions improve.

Habitat: Forests, mountains meadows.

Distribution: Palaearctic region to the north of Scandinavia and from Portugal to the far east of Asia and Japan.

References:
UK Beetles, Carabus violaceus




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