Cyriopagopus longipes "blue"

Cyriopagopus longipes "blue" arrives from Southeast Asia wearing a colour that stops experienced keepers mid-sentence — deep slate-blue setae across the opisthosoma, legs carrying the same cool metallic cast, and a prosoma dark enough to read as black under anything but direct light. The trade name undersells it. This is a large, slender-framed arboreal species, lightly built relative to many in the genus, yet unmistakably powerful in the way it moves: faster than you expect, and with complete certainty about where it intends to go.

That movement is the character of Cyriopagopus longipes "blue". This species does not posture before it acts. There is no theatrical rearing, no prolonged warning display — it simply relocates the problem, and that relocation is often toward you rather than away. With no urticating setae to fall back on, the entire defensive repertoire comes down to speed, chelicerae, and the willingness to use both without hesitation. Keepers who have spent time with calmer New World species will need to recalibrate before opening this enclosure. For the right keeper, that recalibration is part of the appeal.

Housing an adult Cyriopagopus longipes "blue" calls for an enclosure of roughly 30 × 25 × 30 cm with a substrate depth of at least 10 cm — coconut fibre or peat, or a blend of both, packed firmly enough to hold a burrow. Cork bark and a secure hide give the animal an anchor point from which to build. A water dish is appropriate for adults. Temperature sits ideally between 25 and 28 °C during the day with a moderate drop at night; room temperature is sufficient in most temperate households, provided it does not fall significantly below that range. Aim for humidity around 70–80%, maintained by misting one corner regularly while leaving the opposite side drier. Cross-ventilation matters more than the exact humidity number — stagnant, damp air is a far greater risk than a few degrees of temperature variance. Offer appropriately sized prey and let the animal feed on its own terms.

Cyriopagopus longipes "blue" suits the keeper who wants a species that asks something back. It will not settle into the background of a collection. Every maintenance session demands a clear plan and respect for the animal's speed and disposition — not because the venom poses a serious threat to a healthy adult, but because the encounter demands focus. Repeated over years, that focus becomes its own reward: a slow, attentive relationship with one of the more arresting blue arboreals in the hobby, and one that tends to define the shelf it lives on.