Leaf-dwelling pholcids have evolved several times independently on different continents. They are pale greenish in life and are therefore barely visible on the undersides of leaves where they rest during the day. Apart from that, very little is known about their biology. Here we give some preliminary data on the biology of two species of the New World genus Metagonia.
Left photo: Metagonia delicata, photo courtesy M. Schmitt; right drawing: web of Metagonia osa on an Asplundia sp. leaf.