Abstract
A new species of rhagionid fly, Chrysopilus perseverans sp. nov., is described from middle Eocene Baltic amber. Based on the key provided by Kerr (2010), the new species can be attributed to the genus Chrysopilus Macquart, 1826 due to the following diagnostic characters: antennae with a long terminal arista, dense microsetae on arista, holoptic male eyes, setose anepisternum and laterotergite, and macrosetae on forefemur. A checklist of named species of fossil rhagionids is provided.
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