A new species of Spilogona Schnabl, 1911 (Diptera: Muscidae) from the Altai Mountains of Russia

A new species of the genus Spilogona Schnabl, 1911 (Diptera), S. elegantis sp. n., is described from the Altai Mountains. This species is distinguished by its notably broad male frons and parafacial, the presence of three postsutural dorsocentral setae, a stout spinose seta at the base of the mid femur in males, and spines on the postgenital plate in females. Both male and female specimens are described in detail, accompanied by comprehensive illustrations and photographs. Spilogona elegantis sp. n. is morphologically similar to S. incerta Huckett, 1965. Comparative images of S. incerta are included, along with records of its distribution in Russia. Sequences of the cytochrome oxidase I (CO1) gene for both species are provided and discussed.