Clubiona corticalis
Encyclopedia
Clubiona corticalis, the 'Bark sac spider', is a species of 'spiders' belonging to the family Clubionidae.
This species is present in most of Europe
and in Central Asia
.
The adult males of these spiders reach 6–10 mm (0.236220472440945–0.393700787401575 ) of length, while females are 7–10 mm (0.275590551181102–0.393700787401575 ) long.
The (prosoma) and the legs are glossy reddish-brown or light brown, except the jaws (chelicerae
), that are much darker. The abdomen (opisthosoma
) is brown or dark brown, with leaf-shaped central markings on a clearer background. The two sexes are quite similar, except for slender abdomen of males.
Sexually mature spiders can be encountered from April to September in coniferous forests, mainly unders loose bark of dead trees (hence the Latin name corticalis, meaning 'of cortex'), more rarely under stones, but sometimes in houses.
The females lay their eggs in the early Summer, watching over them until they hatch. These spiders usually die at the end of Summer, just some of them overwinter in their nest until next Spring.
This species is present in most of Europe
Europe
Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...
and in Central Asia
Asia
Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area and with approximately 3.879 billion people, it hosts 60% of the world's current human population...
.
The adult males of these spiders reach 6–10 mm (0.236220472440945–0.393700787401575 ) of length, while females are 7–10 mm (0.275590551181102–0.393700787401575 ) long.
The (prosoma) and the legs are glossy reddish-brown or light brown, except the jaws (chelicerae
Chelicerae
The chelicerae are mouthparts of the Chelicerata, an arthropod subphylum that includes arachnids, Merostomata , and Pycnogonida . Chelicerae are pointed appendages which are used to grasp food, and are found in place of the chewing mandibles most other arthropods have...
), that are much darker. The abdomen (opisthosoma
Opisthosoma
The opisthosoma is the posterior part of the body in some arthropods, behind the prosoma . It is a distinctive feature of the subphylum Chelicerata...
) is brown or dark brown, with leaf-shaped central markings on a clearer background. The two sexes are quite similar, except for slender abdomen of males.
Sexually mature spiders can be encountered from April to September in coniferous forests, mainly unders loose bark of dead trees (hence the Latin name corticalis, meaning 'of cortex'), more rarely under stones, but sometimes in houses.
The females lay their eggs in the early Summer, watching over them until they hatch. These spiders usually die at the end of Summer, just some of them overwinter in their nest until next Spring.
Subspecies
- Clubiona corticalis concolor Kulczynski, 1897
- Clubiona corticalis nigra Simon, 1878