Wombats with mange are typically seen out in the daytime (note that wombats in cooler areas, such as Cradle Mountain, are also out in the daytime, but that does not mean that they have mange).
Mangy wombats are often seen in a culvert or near a water source as the infestation causes them to become very thirsty and they have to constantly graze to compensate for the loss of body heat.
Mangy wombats often have a white ring around their eyes, and appear to have stripes on their sides where crusty scabs form, and the hair falls out. The only hair left is often along the centre of the back, which makes the wombats look as if they have a strange hair style. Scabs are often seen on the legs and ears as well. Generally the body condition of a mangy wombat looks very poor and emaciated.