A new genus and species representing the first Mesozoic eurymeline leafhopper (Hemiptera: Cicadellidae: Eurymelinae: Macropsini)

Eurymacropsis yanzhenae gen. et sp. nov. is described and illustrated based on a well-preserved adult male embedded in mid-Cretaceous Myanmar amber and tentatively placed in Macropsini Evans, 1935 (Eurymelinae Amyot & Audinet-Serville, 1843) based on head structure, wing venation and leg chaetotaxy. This fossil is the first member of this subfamily recorded from the Mesozoic, consistent with molecular divergence time estimates placing the origin of this lineage, along with most other major lineages (subfamilies) of leafhoppers, in the lower Cretaceous. The fossil exhibits traits not found in modern Macropsini, including the presence of stout anteroventral setae on the front femur and a dense ventral brush of setae on the first hind tarsomere, somewhat similar to those found in some modern Eurymelini.