Latrodectus tredecimguttatus
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| iMediterranean black widow | ||||||||||||||||
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 Female L. tredecimguttatus
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| Latrodectus tredecimguttatus Rossi, 1790 |
The spider Latrodectus tredecimguttatus, commonly known as the European or Mediterranean black widow, malmignatte spider, or karakurt (Russian: КАРАКУРТ, or steppe spider), is one of the widow spiders in the genus Latrodectus. This species is commonly found throughout the Mediterranean region, ranging from Spain to southwest and central Asia. Specimens from central Asia are also known by the binomial name Latrodectus lugubris; today the karakurt is considered to be the same species of spider as that which plagued the farmers of Taranto. The name L. lugubris is considered obsolete, though it is still commonly found in the literature.
L. tredecimguttatus is black in color, similar to most other widow species, and is identified by the thirteen red spots which are found on its dorsal abdomen (the species name is Latin for "thirteen spots"). It is otherwise similar to other species in the genus Latrodectus. The Mediterranean widow primarily lives in steppes and other grasslands, and can be a significant problem in areas where grain is harvested by hand.
Like all Latrodectus species, L. tredecimguttatus has a bite which is venomous and can injure humans. While not nearly as toxic as the bite of L. mactans or L. hasselti, the Mediterranean widow's bite is medically significant and can kill children and the infirm. In Kazakhstan, there are reports of this species biting and killing camels. [1]. It is now believed that this species is the cause of tarantism, often falsely attributed to the wolf spider (Lycosa tarentula).
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