Guatemalan Tiger Rump
Davus pentaloris
Theraphosidae (Tarantulas), Order Araneae. They are part of the Mygalomorphae suborder, characterized by downward-pointing fangs.
Physical Description
A small-bodied tarantula with a robust cephalothorax and a rounded abdomen covered in fine hairs. Notable for its stocky appearance even as a juvenile.
Size Estimate
The specimen in the photo appears to be a juvenile with a body length of approximately 1-1.5 inches. Adults typically reach a leg span of 4 to 5 inches.
Coloration & Markings
Features a striking contrast between a dark/metallic carapace and a copper-orange abdomen. The abdomen displays distinct dark horizontal striping (tiger stripes). Legs are dark blue-black with grayish setae (hairs).
Web Type
Terrestrial burrower and heavy webber. In captivity, they create extensive silk tunnels and mats across the substrate and around their hides.
Eye Arrangement
The eyes are clustered on a small tubercle (raised mound) on the anterior of the carapace, typical of Theraphosidae, though difficult to view from a top-down macro shot.
Leg Characteristics
The legs are relatively short and thick, covered in sensitive bristles. They are dark in coloration, showing an iridescent blue or charcoal sheen under direct light.
Venom & Safety Information
Venom Information
Possesses mild venom intended for paralyzing small insects. Like most New World tarantulas, the venom is not considered medically significant to humans, comparable to a bee sting.
Medical Significance
Low danger level. The primary defense is flicking urticating (itchy) hairs from the abdomen. Bites are rare and usually only result in localized pain and swelling.
Safety Recommendations
Use long forceps for maintenance to avoid startling the spider. If it flicks hairs, wash the affected skin with soap and water to alleviate itching. Relocate using the cup-and-card method if found outside an enclosure.
Habitat & Behavior
Habitat & Range
Native to Central America, specifically Guatemala and parts of Mexico. They reside in tropical forests, living at the base of trees or under rocks in silk-lined burrows.
Behavior & Temperament
Generally skittish and fast rather than aggressive. They are opportunistic hunters and very active display animals that spend a lot of time out of their burrows compared to other tarantulas.
Diet & Prey
Insectivorous, feeding on crickets, roaches, and mealworms. They use their speed to pounce on prey rather than relying solely on silk traps.
Seasonal Activity
In their natural habitat, they are active year-round due to the tropical climate, but may show increased activity during the humid rainy season.
Description
The Guatemalan Tiger Rump is a prized species in the arachnocultural hobby due to its stunning metallic carapace and vibrant abdominal patterns. Despite its smaller stature compared to giant bird-eaters, its contrasting colors and active webbing behavior make it a fascinating subject for study.
Key Features
Copper-orange abdomen with black tiger stripes, dark metallic carapace, and terrestrial webbing habits.
Similar Species
Davus fasciatus (Costa Rican Tiger Rump), which was once confused with pentaloris but usually has slightly different color saturation and geographic origin.
Life Cycle
Moderate growth rate. Females can live up to 10-12 years, while males have much shorter lifespans. They undergo periodic molting to grow, during which they are vulnerable.
Ecological Importance
Acts as an essential predator of ground-dwelling insects, helping to maintain ecological balance in the tropical forest floor food web.
Conservation Status
Not currently listed on CITES or the IUCN Red List, though habitat loss in Central American jungles remains a general threat to the species.
Interesting Facts
Despite being a 'dwarf' or small-sized tarantula, they are known for their voracious appetite and can sometimes tackle prey nearly as large as themselves.
Photography Tips
A top-down angle is best for showing the 'tiger rump' pattern. Using a soft macro light will bring out the metallic sheen on the carapace without washing out the orange of the abdomen.
Identified: 2026-07-06T20:21:16.587198