Trinidads most recognizable tarantula. The “Trinidad Chevron tarantula” is a large arboreal spider with an attitude. This is a fast growing spider that is easy to breed, and can obtain leg spans up to 7 - 8 inches. Females can sometimes lay up to 2-3 fertilized eggsacs from one mating. Described in 1895 by legendary taxonomist Reginald Innes Pocock and is the type species for the genus Psalmopoeus.