Hemideina ricta The thorax contains the front, middle and hind legs of the weta, each leg is made up of six segments; the coxa, the trochanter, the femur, the tibia, the tarsus and the pretarsus. The ear of the weta can be found at the top of the tibia near the knee joint of the front legs. The tibia of the hind legs are covered in spines, that can be rubbed against the stridulatory ridges on the side of the body to produce a sound, these can also be used as a defence mechanism against predators. Banks Peninsula tree weta can be
Tibia Clausa rank. A few of the largest theatre organs, and some church organs, may have a separate 32′ Tibia Clausa rank of 12 pipes. In smaller organs, a "Bourdon" or "Stopped Diapason" may be substituted for a Tibia Clausa at 16′ pitch. The Tibia may be voiced on wind pressures from 10″ to 25″. The Tibia is generally used as a chorus stop, with or without tremulant; it is not normally used as a solo stop due to its relatively dull tone. Other variants of the Tibia Clausa include: Tibia Bass, Tibia Flute, Tibia Major, Tibia Plena (open tibia) and Tibia