This, with a body size of only slightly more than 2 mm, minute harvestman lives only in caves.

It appears in the same caves as Banksula grahami, which is slightly smaller and has no well-developed eyes.

In fact, B. melones has the best eyes in the whole genus, except for B. incredula, which is the only species that does not inhabit caves.

In the late 1970s, the caves of the region were threatened by the construction of the New Melones Dam.

However, ten years later, no B. grahami was found, while more than 50 individuals of B. melones were counted.