Arachnid legs differ from those of insects by the addition of two segments on either side of the tibia, the patella between the femur and the tibia, and the metatarsus (sometimes called basitarsus) between the tibia and the tarsus (sometimes called telotarsus), making a total of seven segments.
As patas das arañas difiren das dos insectos pola adición de dous segmentos, a patela, entre o fémur e a tibia, e o metatarso (algunhas veces chamado basitarso) entre a tibia e o tarso (algunhas veces chamado telotarso), facendo un total de sete segmentos.