My first Solpuga was found under a clod of hard earth, which I overturned in search of spiders. Upon being uncovered, it reared its palpi aloft with a menacing motion, and backing down as closely as possible into a little depression, stood motionless till captured. This was in August, 1882. The specimen is apparently a ♀, Datrines constricta, of medium size. The head and mandibles conform closely to the figure of that species, but it differs materially from the letter-press description of Constricta; as to the other parts.