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Colombian Dwarf Tiger (Cyriocosmus leetzi)

Cyriocosmus leetzi

The Cyriocosmus leetzi, known as 'Colombian Dwarf Tiger'. It is a microscopic dwarf tarantula (barely 1.2-1.5 inches legspan), sister of the C. elegans but characterized by a profoundly different coloration. It features a velvety Black/Dark Brown abdomen (opisthosoma) furrowed by five evident white horizontal stripes ('tiger rump'), a copper-colored carapace and legs delicately striped with white. It is a very fast opportunistic weaver and uncontrollably voracious. Like all dwarf tarantulas, it requires micro-terrariums and specific care to avoid fatal dehydration, rewarding the beginner with its hyperactivity and wonderful colors.

Taxonomy
Class:Arachnida
Order:Araneae
Family:Theraphosidae
Genus:Cyriocosmus
Species:Cyriocosmus leetzi

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Environment

Terrestrial

Humidity

65 - 75 %

Day temperature

24 - 27 °C

Night temperature

20 - 22 °C

UVB

None

Species description

Geographic Origin and Habitat: The World Spider Catalog lists Colombia and Venezuela as the distribution of Cyriocosmus leetzi. The cited taxonomic record does not characterize habitat or captive environmental conditions.
Taxonomy and Genetics: The World Spider Catalog lists Cyriocosmus leetzi Vol, 1999 as an accepted species in the family Theraphosidae. The cited record does not report a genetic result for this species.
Behaviour and Habits: The cited taxonomic record provides no species-specific behavioural observations; none are inferred here.
Morphology and Sexual Dimorphism: The cited taxonomic record provides no morphological measurements or sexual-dimorphism data; none are inferred here.

Care, breeding and tankmates

Terrarium Setup: World Spider Catalog lists Cyriocosmus leetzi Vol, 1999 as an accepted species from Colombia and Venezuela. This taxonomic distribution entry does not provide enclosure dimensions, substrate, ventilation, or material requirements.
Lighting and Heating: The cited taxonomic entry does not provide a captive lighting or heating schedule.
Humidity and Hydration: The cited taxonomic entry does not quantify humidity, hydration, or a captive target.
Feeding and Supplementation: The cited taxonomic entry does not document diet, feeding frequency, or supplementation.
Compatibility and Coexistence: The cited taxonomic entry does not evaluate cohabitation or provide a compatibility recommendation.
Health and Common Diseases: The cited taxonomic entry does not provide disease, treatment, or veterinary-management evidence.

Geographic Origin and Distribution

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

Origin

Extra-Amazon South America

Terrestrial invertebrate profile

Diet
No verified data available
Life expectancy
No verified data available
Adult size
5 cm
The catalog's scalar value is 5 cm. The The Tarantula Collective — Cyriocosmus leetzi source reports a maximum adult measurement of 5 cm for this species, recorded as diagonal leg span (DLS). The taxonomic record consulted is Cyriocosmus leetzi. 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
Colombian Dwarf Tiger (Cyriocosmus leetzi) Care Guide & Terrarium Setup | Atlarium