Trachusa perdita inhabits semiarid hillsides with shrubbery or tall grass growth.

Trachusa perdita is a dark grey bee with white bands of hairs on its abdomen.

[3] Trachusa perdita nests are made when female bees burrow diagonal tunnels into hillsides, which branch off into the individual brood cells.

The nests of T. perdita are lined only with the leaves of the Buckthorn Shrub.

[3] The only other known North American bee in the genus Trachusa occurs in California as well.