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Although the 'kātĕpo' was reported to the Linnean Society as early as 1855, [2] the spider was formally described as Latrodectus katipo by L. Powell in 1870. [3] Spiders of the genus Latrodectus have a worldwide distribution and include all of the commonly known widow spiders: the North American black widow spider (Latrodectus mactans), the brown widow (Latrodectus geometricus), and the ...
Steatoda lepida. Steatoda capensis is a spider originating from South Africa. Its common names include the black cobweb spider, brown house spider, cupboard spider and due to its similarities to the katipō spider it is commonly known as the false katipō in New Zealand. [1] Common throughout Southern Africa, [2] it has been introduced into ...
The spider genus Steatoda, in the family Theridiidae, includes about 120 recognized species, distributed around the world (including many cosmopolitan species which are found among human populations worldwide). [2] One common name is cupboard spider, for many species build their webs in dark, sheltered, undisturbed places around the house or ...
A black widow bite can look like countless other insect and spider bites, but if you suspect or know you’ve been bitten by one, it’s best to get checked out, Dr. Zahn says. Children, pregnant ...
A number of spiders can cause spider bites that are medically important. Almost all spiders produce venom but only a few are classified as "venomous" and able to cause significant harm to humans. [1] Two medically important spider genera have a worldwide distribution—Latrodectus and Loxosceles. Others have a limited distribution.
Recluse spider bites. Increasing pain over the first eight hours after the bite. Fever, chills and body aches. A bite wound with a pale center that turns dark blue or purple with a red ring around it.
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Basic characteristics of arachnids include four pairs of legs (1) and a body divided into two segments: the cephalothorax (2) and the abdomen (3). The ventral side of a brown widow spider. The epigastric plates and furrow are visible, as well as the hourglass marking on the underside of the abdomen, which is a characteristic feature of widow ...