Brachypelma auratum (Mexican Flame-knee) Tarantula

Brachypelma auratum, commonly known as the Mexican Flame Knee Tarantula, is a visually stunning terrestrial species endemic to the Pacific slopes of Guerrero and Michoacán, Mexico. It is closely related to Brachypelma smithi but distinguished by its deeper black base coloration and the brilliant orange-red “flame” markings that blaze across its leg joints. This species inhabits dry tropical forests and thorn scrub ecosystems, where it constructs silk-lined burrows in compact soil beneath rocks or logs. Within these retreats, it maintains stable humidity and temperature throughout Mexico’s pronounced dry and wet seasons. B. auratum is calm, slow-growing, and long-lived—traits that have made it a favorite among collectors and first-time keepers alike. In captivity, it thrives with deep, slightly moist substrate, a secure hide, and consistent warmth. Its bold coloration, gentle temperament, and poise make it one of the most iconic and desirable New World tarantulas in the hobby.

• Scientific Name: Brachypelma auratum

• Adult Leg Span: 5–6 inches

• Country of Origin: Mexico (Guerrero, Michoacán)

• Habitat: Tropical Dry Forest and Thorn Scrub (400–1,000 m elevation); compact, semi-arid soils with scattered vegetation, seasonal monsoon rains, temperatures 76–88°F, and relative humidity 55–70%

• Habits: Terrestrial / Burrowing

• Growth Rate: Slow