In this paper Litoleptis fossilis sp. nov. a new fossil species belonging to the family Spaniidae (Diptera) is described. This is the first time the genus Litoleptis has been described from the fossil record. A comparison with extant species of Litoleptis and other fossil rhagionoids is done. The fossil is also compared to not closely related Diptera but having convergent wing venation. Palaeoecological and palaeobiogeographical comments are provided.

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