Species: Chilobrachys sp. Blue Vietnam
Common name: -
Native range: Vietnam
Temperature: 24–28°C, with a 2–3°C drop at night; tolerates standard room temperature
Humidity: 70–80%
Adult size: Females reach up to 7 cm body length
Lifestyle: Fossorial
Speed: Fast
Venom potency: Potent
Temperament: Defensive when disturbed
Recommended for: Advanced keepers
Notes: Not CITES-listed; no captive-breeding documentation required
Chilobrachys sp. Blue Vietnam
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Description
Few blue spiders in the hobby reward patience the way Chilobrachys sp. Blue Vietnam does. The metallic sheen across its legs and carapace isn't the electric, almost theatrical blue of certain showpiece species — it's quieter and more considered, a deep gunmetal iridescence that reveals itself only under the right light, like oil on dark water. The body stays predominantly dark, which makes those blue accents land all the more deliberately when they catch a beam. Adding to the intrigue, this is a species without a formal scientific description, a taxonomic work-in-progress from Vietnam's tropical forests with its precise range still unresolved — a living reminder that the hobby still keeps animals science hasn't yet finished cataloguing.
Temperament follows genus expectations closely. Chilobrachys sp. Blue Vietnam is fast, alert, and entirely unwilling to be handled or disturbed without registering its objection clearly. It is a dedicated burrower, excavating deep into the substrate and spending most of its time below the surface, emerging on its own schedule rather than yours. Defensiveness is a resting state rather than an occasional mood, and the appetite is correspondingly strong — an animal that invests its energy purposefully and grows at a pace that rewards consistent care.
Build the enclosure around its fossorial instincts. A deep column of substrate — at least 10 cm of moist coconut fibre — is the foundation, with a surface hide to anchor the first burrow. A water dish is appropriate for adults. Keep humidity elevated by misting one side of the enclosure regularly rather than saturating the whole, and maintain temperatures of 24–28°C, slightly warmer than standard room conditions. Good airflow matters more than precise humidity; stagnant, sodden conditions cause more losses here than the occasional dry spell. Feed appropriately sized prey and the appetite will do the rest.
Chilobrachys sp. Blue Vietnam suits experienced keepers who find something genuinely compelling in the taxonomically unresolved. Its undescribed status isn't a marketing footnote — it's an honest condition that makes every specimen a small piece of a question the hobby and the scientific community haven't yet answered together. Flashier blue species pull the eye on sight; this one holds it through restraint. Keepers who have moved through the more immediately legible blues tend to find Chilobrachys sp. Blue Vietnam the one they keep coming back to study — the spider on the shelf they're still learning to read years later.