Phalangium grandis Hadrobunus grandis is a species of harvestman that occurs in the United States (Georgia, Maryland, North Carolina, Ohio, Indiana, Oklahoma, and Virginia).

Adults can be found in early summer.

Their backs are brown, with a central marking that can be absent.

The legs have a banded appearance.

The species is similar to H. maculosus, but the latter has no spines on its back and is darker.