| Scotinella redempta | |
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| Scotinella redempta female specimen | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Order: | Araneae |
| Infraorder: | Araneomorphae |
| Family: | Phrurolithidae |
| Genus: | Scotinella |
| Species: | S. redempta |
| Binomial name | |
| Scotinella redempta Gertsch, 1941 | |
| Synonyms | |
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Scotinella redempta is a species of true spider in the family Phrurolithidae, found in the eastern United States and Canada. It has a reddish-brown cephalothorax, and an abdomen with alternating patterns of light and dark spots and stripes. While little is known about the species biology, it is associated with deciduous forests, where it is most commonly found through sifting leaf litter.
Taxonomy
Scotinella redempta was originally misidentified in 1930 as the species Scotinella similis (then Phrurolithus similis) by Willis J. Gertsch. He later discovered this error and described it as Phrurolithus redemptus in 1941. The species was eventually transferred to the genus Scotinella, and the specific epithet was consequently altered to agree with the gender of the genus.
Description
Scotinella redempta is a small spider, with males averaging 2.13 mm in length and females 2.35 mm in length. The carapace is reddish-brown, with faint traces of radiating dark marks. The sternum is brownish orange. The abdomen is dark grey, with two light spots near the anterior end, a W-shaped marking near the middle, and four thinner light markings on the posterior end. Like many species in the family Phrurolithidae, the first two pairs of legs possess prominent spines.
Scotinella redempta can most easily be identified through inspection of the genitalia. Males can be identified by the presence of a sharp, outwards-directing projection at the base of the retrolateral tibial apophysis, in combination with a small, straight and abruptly narrowed embolus. Females can be identified by the combination of small, closely spaced copulatory openings situated at the center of the epigynum, and by large, ovoid spermathecae.
References
- ^ "Scotinella redempta (Gertsch, 1941)". World Spider Catalog. Version 25.5. Natural History Museum Bern. doi:10.24436/2. Retrieved 2024-12-13.
- ^ Platnick, Norman I.; Chamé-Vázquez, David (2024-03-22). "The Guardstone Spiders of the genus Scotinella (Araneae: Phrurolithidae) in the Southeastern United States". Zootaxa. 5428 (3): 301–350. doi:10.11646/zootaxa.5428.3.1. ISSN 1175-5334.
- Dondale, Charles D.; Redner, James H. (1982). The sac spiders of Canada and Alaska: Araneae: Clubionidae and Anyphaendiae. The insects and arachnids of Canada. Ottawa: Canadian Govt. Publ. Centre. ISBN 978-0-660-11146-9.
- Chamberlain, R. V.; Gertsch, W. J. (1930). "On fifteen new North American spiders". Proceedings of the Biological Society of Washington. 43: 137–144.
- Gertsch, W. J. (1941). "New American spiders of the family Clubionidae". American Museum Novitates. 1147: 1–20.
| Taxon identifiers | |
|---|---|
| Scotinella redempta | |