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The cobalt blue tarantula is a medium-sized tarantula with a leg span around 13 cm (5.1 in). It is noted for its iridescent blue legs and light gray prosoma and opisthosoma, the latter of which may contain darker gray chevrons. [3] [4] Males and females look the same until the ultimate (final) molt of the males.
Some species of blue tarantulas have hairs with a "special flower-like" structure which may reduce iridescence. [14] [15] Given that many tarantulas express nearly a full suite of opsins found in other colourful spiders with colour vision, blue colors could potentially function in mate-choice or contests for mates. [16] [17]
Phidippus audax are commonly referred to as "bold jumping spiders" or "bold jumpers". [8] The species name, audax, is a Latin adjective meaning "audacious" or "bold". [8] This name was first used to describe the species by French arachnologist Nicholas Marcellus Hentz, who described the spider as being, "very bold, often jumping on the hand which threatens it". [9]
Adult females will span around 6-8 inches. Male Joro spiders are only about 1/4 inch long with a leg span of 3/4 of an inch. Should Joro spiders be killed? Don't panic if you see one of these spiders.
The Australian funnel-web spiders (family Atracidae), such as the Sydney funnel-web spider Atrax robustus (a mygalomorph spider, not to be confused with the araneomorph funnel-weaver or grass spiders) are regarded as among the most venomous in the world. They react vigorously to threats and, reputedly, will more often attempt to bite than run away.
Of the four venomous spiders in South Carolina, ... A bite wound with a pale center that turns dark blue or purple with a red ring around it. A bite wound that grows into an open sore (ulcer) with ...
These spiders have blue-gray and yellow coloring with red markings on the abdomen and black legs with yellow bands for females, Fredericks says. The males are “mostly brown,” he adds. The Joro ...
The adult coloration of M. balfouri is striking, a vivid blue, though some red and amber variants have been seen very rarely. [1] The carapace is blue, as is the leg except for the trochanter, which, like the rest of the body, is cream-colored or grey. The opisthosoma (abdomen) is cream-colored, grey and partially blue. Females of the species ...