Clubiona subsultans
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| Clubiona subsultans | |
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Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Order: | Araneae |
| Infraorder: | Araneomorphae |
| Family: | Clubionidae |
| Genus: | Clubiona |
| Species: | C. subsultans |
| Binomial name | |
| Clubiona subsultans | |
| Synonyms[1] | |
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Clubiona subsultans, the Caledonian sac spider,[2] is a spider from the family Clubionidae with a Palearctic distribution.[1]
The body length of female Clubiona subsultans varies from 5–7 mm, that of males from 5–9 mm.[3] The tibial apophysis is pointed and has 2 barbs. The prosoma is golden-brown, the chelicerae are brownish and the legs yellow. The abdomen is reddish brown with yellow spots and a black median band with white arc-lines.[3]
Habitat and ecology
Clubiona subsultans is normally found under stones and bark and in moss and litter, mostly in coniferous forests.[3] In Britain it is called Caledonian sac-spider because the native Scots pine forest is the normal habitat. Clubiona subsultans is associated with Caledonian pine woods, where it has been found under bark, on branches, in pine litter, among young pines, and on juniper growing as an under-storey within a pine wood. Recently it was found to have been the commonest spider caught in artificial nestbox traps which were put out in Abernethy Forest to survey for the bee Osmia uncinata. Adult male and female spiders have been found in June, the males also in September.[4]