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Latrodectus indistinctus is a species of spider in the family Theridiidae, found in Namibia and South Africa. [1] It is one of six species of Latrodectus found in southern Africa, four of which, including L. indistinctus, are known as black button or black widow spiders.
Other spiders in this genus with potentially medically significant venom include two chiefly European varieties, S. paykulliana and S. nobilis, and a species found mainly in New Zealand and South Africa, S. capensis. [24] Use of widow spider antivenom has been shown effective in treating steatodism. [25]
Hexophthalma is a genus of spiders in the family Sicariidae. [1] Although the genus was originally erected in 1878 (then with the name Hexomma), it was merged into the genus Sicarius in the 1890s, and remained unused until revived in 2017, when it was discovered that the African species then placed in Sicarius were distinct.
a: ^ Jackson and Blest (1982) say, "The resolution of the receptor mosaic of Layer I in the central retina was estimated to be a visual angle of 2.4 arc min, corresponding to 0–12 mm at 20 cm in front of the spider, or 0–18 mm at 30 cm." b: ^ Several species of cursorial spiders drink nectar as an occasional supplement their diet, and juveniles of some orb-web spiders digest pollen while ...
Hexophthalma hahni (synonyms Sicarius hahni and Sicarius testaceus), known along with other members of the genus as the six-eyed sand spider, is a member of the family Sicariidae, found in deserts and other sandy places in southern Africa. Due to their flattened stance and laterigrade legs, they are also sometimes known as six-eyed crab spiders.
Female widow spiders have unusually large venom glands, and their bite can be particularly harmful to large vertebrates, including humans. However, despite their notoriety, Latrodectus bites rarely cause death or produce serious complications. [citation needed] Only the bites of the females are dangerous to humans.
Button spider is a common name used in Southern Africa to refer to local members of the spider genus, Latrodectus, the family Theridiidae.There are both black and brown button spiders in Southern Africa, that are known elsewhere as widow spiders.
This category contains articles about spiders that have an African native distribution, rather than being limited to particular regions or countries in Africa. Spiders native to Africa may also be found in categories covering larger areas: Category:Cosmopolitan spiders – spiders native worldwide