Causeyella dendropus and C. youngsteadtorum were reared under laboratory conditions. Both species were active and often roamed their culture dishes. Males, females, and juveniles displayed occasional aggression by striking or boxing. Mating occurred in C. dendropus and two females each laid five eggs in batches of one to five on wood or clay, but none hatched. Molting in C. youngsteadtorum juveniles took about two weeks and two 9-mm specimens each grew about 1 mm after they molted. The sticky droplets that subtend the long setae that cover the body appear to serve, at least in part, to trap small intruders that get under the setae. Once stuck in a droplet, the intruder slides up the seta and is eliminated when it sticks to another object.