Tiger bromeliad spider

Geographical Origin and Habitat: This species is native to the tropical regions of Central America, with a particularly high abundance in Mexico, Guatemala, Honduras, and Costa Rica. In its natural environment, it lives mainly inside warm and humid lowland rainforests. It is found in close association with epiphytic plants, particularly bromeliads of the genera Aechmea and Tillandsia, which provide safe shelter and constant moisture during the drier daytime hours.

Taxonomy and Genetics: Originally classified in the family Ctenidae due to its wandering habits and eye arrangement, recent phylogenetic studies have reclassified the genus Cupiennius into the family Trechaleidae. Genetically, it is a diploid organism widely studied in laboratories to map the sensory and nervous systems of spiders. No subspecies are currently recognized.

Behavior and Habits: It is a highly specialized nocturnal and arboreal predator. It does not build webs to capture prey; instead, it hunts by ambush, remaining motionless on plant leaves. It communicates with conspecifics through low-frequency vibrations emitted by its body and transmitted along plant leaves, a mechanism essential for courtship. It has a shy but fast temperament, and if cornered, it can deliver a painful bite.

Morphology: The body features a chocolate brown base coloration with darker longitudinal stripes on the carapace and light spots on the abdomen. Females are significantly larger, with a body length of about 3.5 cm and a leg span exceeding 10 cm, while males are smaller (about 2.5 cm) but possess proportionally longer and thinner legs.

Terrarium Setup: Requires a vertically oriented terrarium measuring at least 30x30x45 cm for a single specimen. It is essential to include a live broad-leafed bromeliad plant or equivalent fake plants, combined with branches and pieces of cork bark arranged vertically to encourage climbing. The ideal substrate consists of coconut fiber or damp peat soil about 5 cm deep to retain moisture.

Lighting and Heating: Lighting should be moderate and not too intense, preferably with a 12-hour photoperiod cycle using low-consumption LED bulbs. Heating must ensure a daytime temperature of 24-27°C (75-81°F) with a localized hot spot. During the night, the temperature can drop naturally to 20-22°C (68-72°F) to simulate the natural thermal variation of tropical forests.

Humidity and Hydration: Humidity is a critical parameter and must be kept constantly between 70% and 85%. This is achieved by misting the terrarium daily with dechlorinated or reverse osmosis water, wetting in particular the central urn of the bromeliad from which the spider prefers to drink. A digital hygrometer is necessary to monitor the parameters constantly.

Feeding and Supplementation: The diet must consist of live feeder insects of appropriate size, such as crickets, roaches (Blaptica dubia), and locusts, offered once or twice a week. Growing spiderlings can be fed with fruit flies (Drosophila spp.) and pinhead crickets. No special supplements are needed if the prey insects are well gut-loaded.

Compatibility: It is a strictly solitary species and must be housed individually. Any attempt at cohabitation between specimens will inevitably lead to violent territorial clashes ending in cannibalism, even during mating attempts if the female is not well-fed and receptive.

Health and Common Diseases: The main risks are related to dehydration due to low humidity or the appearance of mold in the terrarium caused by poor air circulation. It is essential that the terrarium is equipped with large cross-ventilation grilles. The venom is active against insects but is not considered of medical significance for humans, causing local pain similar to a wasp sting.