Dolichothele diamantinensis
Brazilian Blue Dwarf Beauty tarantula
Former Scientific Name: Homoeomma diamantinensis (historical classification)
Origin
New World
Native Range
Brazil
Type
Terrestrial
The Brazilian Blue Dwarf Beauty is native to central Brazil, where it inhabits dry savanna and scrubland habitats. Rather than living high in the trees or in deep burrows, it creates shallow retreats beneath rocks, leaf litter, and natural debris while heavily reinforcing these structures with silk.
Overview
The Brazilian Blue Dwarf Beauty (Dolichothele diamantinensis) is a small but spectacular tarantula native to Brazil. Despite its modest adult size, this species is highly sought after for its brilliant metallic blue coloration, extensive webbing, and active feeding response.
Unlike many larger terrestrial tarantulas, D. diamantinensis spends much of its time creating intricate web tunnels that cover both the substrate and enclosure décor. These elaborate web structures make it one of the most rewarding species to observe on a daily basis.
Its manageable size, attractive appearance, and fascinating behavior have quickly made it a favorite among hobbyists looking for something a little different from the more commonly kept species.
GENERAL HUSBANDRY
Temperature
Recommended: 70-78*F (21-26*C)
Normal household temperatures are generally ideal.
Humidity
Maintain slightly moist substrate for slings and juveniles.
Adults generally thrive with:
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Mostly dry substrate
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A full water dish
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Occasional moisture in one corner as needed
Avoid keeping the enclosure consistently wet.
Ventilation
Excellent cross-ventilation is essential
An enclosure with good ventilation will help moisture escape the enclosure.
Feeding
Slings
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Small crickets
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Red runner nymphs
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Mealworm pieces
Feed every 4–6 days.
Juveniles
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Small dubia roaches
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Crickets
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Red runner roaches
Feed every 7 days.
Adults
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Medium crickets
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Dubia roaches
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Red runners
Feed approximately every 7-10 days.
This species typically exhibits an enthusiastic feeding response.
Enclosure Design
Substrate & Decor
Although classified as a terrestrial, Dolichothele diamantinensis benefits from enclosure features that encourage web construction.
Recommended setup:
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2-4 inches of substrate
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Cork bark hide
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Small pieces of cork or wood to serve as webbing anchors
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Leaf litter
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Moss (optional)
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Water dish
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Good cross ventilation
Providing multiple anchor points allows the spider to create extensive web tunnels throughout the enclosure.
Growth & Size Metrics
Growth Rate: Moderate
Specify diagonal leg span here. Provide average measurements for both males and females if distinct.
Adult Leg Span: 3-4 inches
Adult Female Lifespan: 10–12 years
Adult Male Lifespan: 3–4 years
Behavioral Observations
The Brazilian Blue Dwarf Beauty is an active species that frequently remains visible, especially during the evening hours.
Rather than relying on speed or defensive displays, it often retreats into its dense webbing when disturbed. They may spend considerable time expanding and reinforcing web tunnels, making enclosure changes noticeable from week to week.
Feeding responses are typically fast and decisive, adding to the enjoyment of observing this species.
Quick Facts
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Difficulty: Beginner-Intermediate
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Venom significance: Mild (New World)
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Urticating hairs: No
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Display species: Excellent
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Webbing: Exceptional
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Temperament: Generally calm
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Visibility: Moderate to High