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Pumpkin Patch Tarantula (Hapalopus formosus)

Hapalopus formosus

The Hapalopus formosus (formerly H. sp. Colombia), globally adored as 'Pumpkin Patch Tarantula'. It is a small, but spectacular, Neotropical jewel (2.7-3.9 inches legspan for the 'Large' form, much smaller for the 'Small'). A universal darling of terrarium keeping, it owes its nickname to its very peculiar abdomen: velvety black crossed by showy and very elaborate chained Orange/Pumpkin patches, of unsurpassable brilliance. Frantic and ravenous terrestrial, it sports clouds of urticating hairs despite its size and is famous for building extensive webs low to the ground.

Taxonomy
Class:Arachnida
Order:Araneae
Family:Theraphosidae
Genus:Hapalopus
Species:Hapalopus formosus

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Environment

Terrestrial

Humidity

65 - 75 %

Day temperature

24 - 27 °C

Night temperature

21 - 24 °C

UVB

None

Species description

Geographic Origin and Habitat: World Spider Catalog records Colombia as the distribution. The consulted taxonomic record does not provide a habitat description.
Taxonomy and Genetics: World Spider Catalog treats Hapalopus formosus Ausserer, 1875 as an accepted type species in the genus Hapalopus, family Theraphosidae.
Behaviour and Habits: The consulted taxonomic record does not provide a species-specific behaviour observation.
Morphology and Sexual Dimorphism: World Spider Catalog cites the original description by Ausserer (1875), page 175, plate 6, figures 17–18 (Dm); this record does not provide a complete comparative diagnosis of the sexes.

Care, breeding and tankmates

Terrarium Setup: A spider-diversity study records Hapalopus formosus in a tropical dry forest study area at Reserva Campesina La Sierra, Sabanalarga, Atlántico, Colombia, and among morphospecies shared by interior forest and cultivation habitats. This is a field-study occurrence, not an enclosure or substrate prescription.
Lighting and Heating: This recovery sets no photoperiod or temperature target.
Humidity and Hydration: This recovery sets no humidity or watering target.
Feeding and Supplementation: This recovery sets no feeding or supplementation protocol.
Compatibility and Coexistence: This recovery makes no cohabitation recommendation.
Health and Common Diseases: This recovery provides no health, disease, or treatment protocol.

Geographic Origin and Distribution

This species originates from: Sud America (Foreste umide e vallate della Colombia andina).

Origin

Extra-Amazon South America

Terrestrial invertebrate profile

Diet
No verified data available
Life expectancy
No verified data available
Adult size
10 cm
The catalog's scalar value is 10 cm. The Herpeton Academy — Hapalopus formosus source reports a maximum adult measurement of 10 cm for this species, recorded as diagonal leg span (DLS). The taxonomic record consulted is Hapalopus formosus. These figures are not interchangeable: the first is the profile's editorial reference, whereas the second is a published maximum under a specific measurement convention; differences among sources can reflect sex, population, life stage and measuring method.
Lifestyle/Microhabitat
No verified data available
Activity cycle
No verified data available
Sociality
No verified data available
Reproduction
No verified data available
Venom level
No verified data available
Handling tolerance
No verified data available
Brumation
No verified data available
Molting
No verified data available

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.

Related species

Recommendations grouped by close relatives, companion choices, and similar care.

Last updated: 08/10/2026
Pumpkin Patch Tarantula (Hapalopus formosus) Care Guide & Terrarium Setup | Atlarium