Novel Biology for Tephrochlamys rufiventris (Meigen, 1830) (Diptera: Heleomyzidae)

Abstract. A heleomyzid fly Tephrochlamys rufiventris (Meigen, 1830), was reared from a form of blue cheese aging in a refrigerated, dark, aging room of a small northern California creamery. The third-instar larva is redescribed and the puparium is described for the first time.