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Latrodectus
(redirected from Widow spider)

   Also found in: Wikipedia 0.01 sec.
Latrodectus /Lat·ro·dec·tus/ (-dek´tus) a genus of poisonous spiders, including L. mac´tans, the black widow spider, whose bite may cause severe symptoms or even death.
Lat·ro·dec·tus (ltr-dkts)
n.
A genus of small spiders, including the black widow, capable of inflicting highly poisonous, neurotoxic bites.

Latrodectus
a genus of poisonous spiders belonging to the dipneumomorph family Theridiidae.

Latrodectus hasseltii
the Australian redback spider, an ecological variant of L. mactans and with the same toxicity.
Latrodectus mactans
a species found in the United States; commonly known as the black widow. In New Zealand called katipo. Satiny black with a broad sagittal red stripe in the female, which is venomous. Its bite may cause severe local pain and general paralysis.

Latrodectus
A genus of venomous spiders–Family Theridae–eg, black widow spider, Latrodectus mactans, endemic to the US, with a characteristic orange-red hourglass-shaped marking on the abdomen; the venom is a non-hemolytic neurotoxin Clinical Latency of hours, followed by severe myalgia, myospasm, truncal rigidity, N&V, diaphoresis, shock; most cases resolve spontaneously, small children are at ↑ risk of M&M Treatment Establish airway, supportive care


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