The mygalomorph spider family Theraphosidae is represented by 980 species in 144 genera
globally (World Spider Catalogue 2018). Within the family Theraphosidae sites the genus
Chilobrachys. The genus Chilobrachys is found in South and East Asia, with 27 described species
to date (World Spider Catalogue 2018). They are ground dwelling spiders, living in burrows
lined with silk and other debris (Nanayakkara, 2013, Nanayakkara 2014b). In Sri Lanka the
genus is represented by only one species, namely Nanayakkara 2014b), which also happens to be
the type species (species typica) for the genus.