(Pherbellia schoenherri)
Pherbellia schoenherri is a species of flies in the family Sciomyzidae. It is found in the Palearctic . The females lay eggs on the shells of Succineidae including Succinea putris.The resultant larvae consume the animal and pupate within the shell.P. schoenherri is a very common and widespread species with a very long flight period. It flies mainly from April to October, but in most European countries, it occurs all year round and in a very wide variety of both dry and moist habitats.