The famous european tarantulas (Lycosa tarantula, Lycosa narbonensis and others) are the biggest spider in our continent. They
are called with the same vulgar name used for the big tropical hairy
spider of the family Theraphosidae but belong to a different group: wolf spiders
(Lycosidae). In Europe
they are present only in southern countries with sunny coastal regions
where they inspired various myths: in Apulia (Southern Italy) of XVI
century, for example, spiders like these were credited to cause serious
poisoning that could be healed only with a furious dance, the “tarantella”.
Later this futile usage was unmasked and the real culprit of poisoning
discovered: the european black widow, Latrodectus tredecimguttatus,
a medium size and very recognizable spider with red dots on body,
that can actually cause serious illness. In Southern Italy, anyway, tarantella tradition is still very popular today.
Tarantulas are usually nocturnal and during the day rest in borrow
in the soil, sometimes closed by a small door. They venture out to
hunt, using their strength and poison to subdue prey. No web is used
to seize victims but they can easily kill almost every Arhtopods they
encounter, including other spiders. Male wolf spiders, for example,
should be very cautious while approaching females for mating. If not
recognized or rejected they can be eaten by their stronger partners.
Only if courtship is successful, involving visual signals with legs
and “drumming” with pedipalps, the male can mate. The
copulation lasts only a few minutes, after which the male escapes.
A revolutionary American study in 2004 (involving Schizocosa species) discovered females wolf spiders can remember
for months males that had previous relations with them. They were
more interested in mating with these males than with others completely
new to them, demonstrating some Arthropods can retain complex notions
for a long time.
Hatched young’s congregate on mother’s abdomen for various
weeks. They are carried around and protected before running independent
life. It’s one of the not-so-rare cases of parental care in
Arachnids.
See Much feared spiders on Europe most dangerous Arachnids
Many thanks to nice people
helping me in my researches: Marco Colombo, Emanuele Biggi, Fabio
De Vita, Paolo Tongiorgi, Matteo Grotto.