Tachina devia Fállen, 1820 Brachicoma devia is a species of flesh fly belonging to genus of Brachicoma.

[2] Brachicoma devia has a unique life cycle that involves invading bumblebee nests and laying their living larvae on the skins of the unsuspecting bumblebee larvae.

[4] They are very difficult to identify to species level without microscopic examination, so they will need to be checked in detail unless confirmed by a recognised expert.

[5] Brachicoma devia is one of the many natural enemies and pests that bumblebees face during their lives.

They can reduce the reproductive success of the bumblebee colonies by killing or weakening their larvae.