[2] They are mainly distributed in tropical Asia and Australia, and are known for their cryptic coloration that matches local moss and lichen.

Their legs have lateral hairs, giving them a feathery appearance, further masking their outline against tree trunks.

Their head is somewhat elevated and the carapace has the thoracic region low and flat.

Males have irregular coils at the terminal end, while females have screw like copulatory ducts.

[4] As of October 2019[update] it contains sixteen species and one subspecies, found in tropical forests in Asia, extending east to Australia:[1]