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Noun1.Latrodectus - venomous spidersLatrodectus - venomous spiders      
arthropod genus - a genus of arthropods
family Theridiidae, Theridiidae - a family of comb-footed spiders
black widow, Latrodectus mactans - venomous New World spider; the female is black with an hourglass-shaped red mark on the underside of the abdomen
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References in periodicals archive ?
RESIDENTS in a seaside town have been warned to keep an ey e out as the false black widow spider has made multiple appearances.
Summary: TEHRAN (FNA)- The noble false widow spider, Steatoda nobilis, native to Madeira and the Canary Islands, has been introduced accidentally to countries around the globe, causing considerable concerns.
A FALSE widow spider put a joiner in hospital after sinking its fangs into him - as he watched Netflix.
A RELATIVE of the deadly venomous black widow spider is thriving in Britain, an expert warns.
Mr Leonard, whose firm is based in Warmley, said he has had personal experience of being bitten by a false widow spider several times, and found one in his own home last week.
After a black widow spider bite, a sensation similar to that of a needle prick, pain, and local burning may develop at the bite site.
AMAN had his leg amputated after a suspected false widow spider bite became infected.
A DAD of two had his leg amputated after being bitten by a false widow spider.
Ultrastructure of the major ampullate gland of the black widow spider, Latrodectus Hesperus.
To spot a false widow spider you should look for one with a brown bulbous abdomen with cream skull-like markings.