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Grammostola alticeps (known as Brazilian greysmoke spider in the pet industry) is a New World spider in the tarantula family (Theraphosidae). It is endemic to Uruguay , Paraguay , and Brazil . [ 1 ] [ 2 ]
New-world tarantulas—those indigenous to the Americas—have bites that generally pose little threat to humans (other than causing localized pain). Most of them are equipped with urticating hairs on their abdomens, and almost always throw these barbed bristles as the first line of defense.
As most New World Tarantulas, this species lacks potent venom. Although their venom has been analyzed, and the toxin Gitx1 was found. The effects of this toxin in mice ranges from rotating movements, disorientation and paralysis, to complete paralysis and death. Depending on the amount of the toxin inserted. [3]
Grammostola pulchra is a species of tarantula (family Theraphosidae), native to Brazil. [1] It is known for its solid black body, which makes it an appealing tarantula for the pet trade. [ citation needed ]
Selenocosmia similis Kulczyński, 1911 - New Guinea; Selenocosmia stirlingi Hogg, 1901 - Australia; Selenocosmia strenua (Thorell, 1881) - New Guinea, Australia (Queensland) Selenocosmia strubelli Strand, 1913 - Indonesia (Java, Moluccas) or New Guinea; Selenocosmia sutherlandi Gravely, 1935 - India; Selenocosmia tahanensis Abraham, 1924 - Malaysia
There distinguishing factor is based on the scopulae of the metatarsus 4 is covering nearly the entire length and circumference of the segment. At the time it was the only known New World tarantula genus to own this trait, which is not the case today.
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.
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