tarantula

Any of the large, hairy New World spiders comprising the family Theraphosidae.

Cockroaches, centipedes, tarantulas, scorpions, and mosquitoes are abundant in summer. [...] Tarantulas and scorpions are little noticed by those who have been there any length of time.

In the southern portions of the State we have met with specimens of brown tarantula weighing a full Troy ounce, but these were of unusual size. The wood tarantula is the largest of all, occasional specimens weighing an ounce and a half, inhabits dead wood, is very active on a warm day, is found of sunning himself, and is quite courageous, leaping on a large lizard, with a perfect recklessness of consequences. [From the Alta California.]

A member of certain other groups of spiders, generally characterized by large size, hairiness, or membership of infraorder Mygalomorphae to which Theraphosidae family also belongs.

The small funnel-web tarantulas are sedentary but notable for their aggressiveness and the strong action of their venom on human beings. A. robustus and formidabilis have caused human deaths.

tergites: dorsal sclerites on the body; the hard plates on the abdomen of the atypical tarantulas that indicate segmentation

A species of wolf spider, Lycosa tarantula, native to southern Europe, the mildly poisonous bite of which was once thought to cause an extreme urge to dance (tarantism).

[I]t is better to be pained with the ſting of a Snake, and recouer, then be tickled with the venime of Tarantula and dye laughing: [...]

Many men catch this malady [i.e., melancholy] by [...] ſtinging with that kind of ſpider called Tarantula; [...] Their ſymptomes are merrily deſcribed by Iovianus Pontanus. Ant. dial. how they daunce alogether, and are cured by Muſick.