
Iridopelma hirsutum is a tropical, tree-dwelling tarantula from Brazil. It builds extensive silk retreats among vertical surfaces, branches and bark. Its arboreal lifestyle makes a tall enclosure with secure climbing structures and excellent ventilation essential. Although attractive and fascinating to observe, it is quick and easily startled, so it is best admired without handling.
Behavior and Temperament: Fast, skittish and defensive when disturbed. It may retreat rapidly into its webbing or bolt when the enclosure is opened. Like other New World tarantulas, it possesses urticating hairs that can cause skin and eye irritation. Avoid handling and use care during enclosure maintenance.
Habitat and Environment Needs: Provide a tall, well-ventilated arboreal enclosure with vertical cork bark, branches and anchor points for webbing. Maintain a temperature of approximately 22–25°C and relative humidity around 65–75%, allowing the enclosure to dry appropriately between moistening. Keep a shallow water dish available at all times. Avoid waterlogged substrate, stagnant air and excessive heat.
Feeding: Feed appropriately sized live insects, including crickets, roaches and locusts. Juveniles generally require more frequent feeding than adults. Remove uneaten prey, particularly when the tarantula is preparing to moult, and never leave live feeder insects with a moulting tarantula.
Additional Information: This species is recommended for intermediate keepers because of its speed and defensive behaviour. Adult size varies by sex and individual; a commonly reported adult female leg span is approximately 10–12 cm, although some care sources give larger estimates. Provide secure enclosure access to prevent escapes. The scientific name is accepted by the World Spider Catalog.
| Amazon Ribbed Tarantula | Iridopelma hirsutum |
|---|---|
| Category : | New World |
| Type : | Arboreal |
| Country of Origin : | Brazil |
| Adult Leg Span : | Approximately 10–12 cm (adult females) |
| Growth speed : | Medium |
| Defense mechanism : | Urticating hairs and rapid escape behaviour |
| Diet : | Crickets, roaches, locusts and other suitable feeder insects |
| Temperature : | 22–25°C |
| Relative Humidity : | 65–75%, with good ventilation and a moisture gradient |
| Recommended Experience Level : | Intermediate |

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