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).

[5] The cobalt blue tarantula is a fossorial species and spends nearly all of its time in deep burrows of its own construction.

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,[6] where they construct deep burrows, and generally only leave them to find food.