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Issue: Vol. 7 No. 4: August 2024
Type: Article
Published: 2024-08-30
DOI: 10.11646/palaeoentomology.7.4.10
Page range: 507-512
Abstract views: 140
PDF downloaded: 9

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

Illinois Natural History Survey, Prairie Research Institute, University of Illinois Urbana-Champaign, 1816 S. Oak St., Champaign, IL 61820, USA
Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong 637009, China
Hemiptera Cicadellidae Eurymelinae Macropsini Auchenorrhyncha morphology taxonomy Eurymacropsis gen. nov. Eurymacropsis yanzhenae sp. nov. new genus new species Cretaceous Myanmar amber

Abstract

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.

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