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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
References in periodicals archive ?
To spot a false widow spider you should look for one with a brown bulbous abdomen with cream skull-like markings.
WORKERS a builders yard in Wirral lifted a paving stone only to discover a black widow spider - one of the most deadly in the world.
A MUM-OF-TWO is in agony after a suspected false widow spider bit her as she visited her grandad's grave.
I thought I saw a false widow spider in our outhouse once, because it had a shiny body, and that really freaked me out.
LOOK away now, arachnophobes - a father-ofthree has found a false widow spider in his South Wales home.
Gray, 23, was rushed to hospital after the false widow spider sunk its fangs into his right arm while he was asleep in bed at his Manchester home.
Its name derives from its similar appearance to the far more venomous black widow spider, not found in Britain.
A DEADLY black widow spider which hitched a 5,000-mile transatlantic ride in a Volkswagen camper van is now safely secured behind alarmed glass.
4-7,10) When disturbed and torn, Latrodectus webs make an unmistakable crinkling sound that is usually different from other spider webs and may serve as a warning to individuals familiar with widow spider webs.
I sent a photo of a Black Widow spider caught in my yard in Barbar - that was posted in the GDN about 12 years ago.
This lady did lose her index finger on her left hand after being bitten by a False Widow spider.
AGARDENER'S ankle swelled to several times its normal size after he was bitten by a false widow spider.