About Nicodamus peregrinus (Walckenaer, 1841)
Nicodamus peregrinus is most commonly found under bark, fallen trees, or stones near the ground. This spider has red and black legs, a red cephalothorax, and an abdomen that is black or sometimes dark blue; its palps are also red and black. Males have a body length of 8 to 10 mm, while females measure 12 to 14 mm in body length. The egg sac of Nicodamus peregrinus is 10 to 20 mm in diameter, holds between 30 and 50 cream-colored eggs that are each 1 mm in diameter. The egg sac is plano-convex in shape, made of white fluffy silk, and placed in a sheltered location such as under bark. In captivity, near-continual courtship and mating have been observed, and this behavior leads to the death of males from exhaustion. While walking, these spiders typically wave their forelegs in the air, and males tap the ground with their palps.
