Description
Chilobrachys natanicharum (ex. sp. “electric blue”), remarkable for iridescent blue on surfaces of anterior appendages. Destined to be a hobby classic, C. natanicharum is familiar to even beginner keepers. Mystery surrounded C. sp. “electric blue” when it appeared on the shelves. Scientific description resolved many questions. We now know the locality is peninsular Thailand, from mangrove swamps to higher elevations inland.
Female C. natanicharum grow to 5+ inches. They can be raised like Chilobrachys dyscolus. Not as drought tolerant as arid-loving species [think Arizona blonde (A. chalcodes) or Mexican red knee (B. hamorii)], Chilobrachys do better with higher humidity. Spiderlings do well on lightly dampened substrate with only enough ventilation restriction to allow humidity to build up (75-95%RH). Similar conditions can be used for larger specimens (65-85%RH). Since wetness favors microbial growth, avoid using more water than necessary, especially for prolonged periods. Room temperature (68-72F) is adequate. There are reports of C. natanicharum making homes in tree crevices. Larger specimens may be offered combined fossorial/arboreal enclosures.
Because blue in nature is typically structural, C. natanicharum‘s iridescence depends on viewing angle (see photos 2-5).
The spiderings here have dug a maze of tunnels in 3″ deep substrate and are eating well.
Photos: 1-4-adult female (note angle-dependent blue iridescence); 5-mother with egg sac
Care highlights:
- tropical rainforest
- room temperature (68-72F) up to 80F
- slightly dampened substrate
- control ventilation to boost humidity
- avoid wetness, especially prolonged
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