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Tarantulas comprise a group of large and often hairy spiders of the family Theraphosidae. [2] As of December 2023, 1,100 species have been identified, with 166 genera. [3] The term "tarantula" is usually used to describe members of the family Theraphosidae, although many other members of the same infraorder (Mygalomorphae) are commonly referred to as "tarantulas" or "false tarantulas".
The two spiders mate and cohabit until the male dies, when the female eats him. The female makes an egg sac and hangs it in her burrow. The next summer, the eggs hatch, and the spring after that, the spiderlings leave their mother's burrow and wander off to find a suitable place to build a lair of their own.
New-world tarantulas—those indigenous to the Americas—have bites that generally pose little threat to humans (other than causing localized pain). The primary defense deployed by these spiders is by means of urticating hairs, which can cause irritant symptoms in humans. Cobalt blue tarantula (Haplopelma lividum), an old-world species
Joro spiders from East Asia are weaving their way into the U.S. landscape. Understand their habits, habitats, and how they affect local ecosystems.
How Joro spiders might invade the northeast, Ohio. According to Penn State, Joro spiders can survive in low temperatures and are often found in northern Honshu, Japan, where temperatures range ...
Aphonopelma anax (Chamberlin, 1940) – United States, Mexico; Aphonopelma armada (Chamberlin, 1940) – United States; Aphonopelma atomicum Hamilton, 2016 – United States ...
Aphonopelma is a genus of tarantulas native to the Americas. It includes nearly all the North American tarantula species north of Mexico and a considerable percentage of the tarantula species that range into Central America. Most are fairly large tarantulas with leg spans of 6 in (16 cm) or more.
New World tarantulas will, at the moment of danger, turn toward the attacker and briskly rub their hind legs against the opisthosoma throwing the urticating hairs in the direction of the enemy. The cloud of small bristles can get into the mucous membrane of small mammals and cause edema , which can be fatal.