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A new cryptic spider species from Africa

Date:
March 7, 2013
Source:
Pensoft Publishers
Summary:
A revision of the cryptic, ground-dwelling spider genus Copa for the continental Afrotropical Region adds a new species to the genus, but altogether reduces the number of species in the region from four to two. A close look at the biology of the two described regional representatives display astonishing extremes in their vagility and ecological flexibility.

This is a picture of a male Copa kei from Cwebe Nature Reserve, South Africa.
Credit: Charles Richard Haddad/CC-BY 3.0

The species from the genus Copa are very common spiders found in the leaf litter of various habitats. Being predominantly ground-living, they occur widely in savanna woodlands but also occasionally in forests, where they are well camouflaged. They usually share the litter microhabitats with several other species of the family Corinnidae. The spiders from this cryptic, ground-dwelling genus in the continental Afrotropical Region are revised in a study published in the open access journal Zookeys.

The number of continental species in the Afrotropical Region has been reduced from four to two, one of which is newly described. While C. flavoplumosa is widespread throughout the region (from Guine in the west to Tanzania in the east, and from Nigeria in the north to South Africa in the south), the new species, C. kei, is endemic to southeastern South Africa.

The two species represent extremes regarding both vagility and ecological flexibility. C. flavoplumosa provides a useful example of extreme habitat flexibility, occupying habitats from forests to semi-deserts. It is particularly prevalent in savanna habitats on the continent, but also occurs in various forest types and grasslands. They have been occasionally collected in agroecosystems, specifically from the canopies of orchard crops in South Africa (avocadoes, macadamias and pistachios), which is in stark contrast to their almost exclusive ground-dwelling habits in natural habitats. The reasons for this ecological divergence, however, are unknown.

The newly described species, C. kei, is very closely associated and believed to be endemic to the Afromontane and coastal forests in South Africa. The species has a distribution falling entirely within the Maputaland-Pondoland-Albany Centre of Endemism in South Africa, where an extraordinary amount of endemic species is found, with around 30 endemic reptiles and emblematic mammals such as the blue duiker antelope.

The new species, C. kei, can be easily recognised by a distinct dorsal black spot on the anterior of the abdomen. The specific name of the species refers to the type locality, the town Kei Mouth, located at the estuary of the Great Kei River in the Eastern Cape Province.


Story Source:

The above story is based on materials provided by Pensoft Publishers. The original story is licensed under a Creative Commons License. Note: Materials may be edited for content and length.


Journal Reference:

  1. Charles Haddad. A revision of the continental species of Copa Simon, 1885 (Araneae, Corinnidae) in the Afrotropical Region. ZooKeys, 2013; 276 (0): 1 DOI: 10.3897/zookeys.276.4233

Cite This Page:

Pensoft Publishers. "A new cryptic spider species from Africa." ScienceDaily. ScienceDaily, 7 March 2013. <www.sciencedaily.com/releases/2013/03/130307124703.htm>.
Pensoft Publishers. (2013, March 7). A new cryptic spider species from Africa. ScienceDaily. Retrieved September 2, 2014 from www.sciencedaily.com/releases/2013/03/130307124703.htm
Pensoft Publishers. "A new cryptic spider species from Africa." ScienceDaily. www.sciencedaily.com/releases/2013/03/130307124703.htm (accessed September 2, 2014).

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