Кобальтово-синий паук-птицеед (Cyriopagopus lividus)

Species of spider
Speciesbox
| taxon = Cyriopagopus lividus
| image = Haplopelma lividum, Cobalt blue tarantula cropped. jpg
| image caption = In Kaeng Krachan District, Phetchaburi, Thailand
| authority = (Smith, 1996) It was originally described as Haplopelma lividum.

The cobalt blue tarantula is a medium sized tarantula with a leg span around 13  cm (5 in). It is noted for its iridescent blue legs and light gray prosoma and opisthosoma, the latter of which may contain darker gray chevrons. Males and females look the same until the ultimate (final) molt of the males. At this point, the male exhibits sexual dimorphism in the form of a light tan or bronze coloration and legginess. Additionally, males gain a palpal bulb on the pedipalps and tibial apophyses (mating hooks). The female eventually becomes larger than the male and lives years longer. The cobalt blue tarantula is a fossorial species and spends nearly all of its time in deep burrows of its own construction. The venom of the tarantula is not enough to kill a human, but it can badly sting them and be extremely painful. The venom contains glutamic acid, at 0.97% concentration. Histamine and adenosine were detected at 0.14% and 0.10% with the polyamine spermine noted in trace amounts at 0.002% (Moore et al., 2009).

Cobalt blue tarantulas inhabit the tropical rainforests of Southeast Asia, where they construct deep burrows, and generally only leave them to find food.

The cobalt blue tarantula is a mainstay in the pet trade, despite being a fast and defensive tarantula with potent venom. Bites from this species can result in severe muscle cramps and inflammation.