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Mitogenomic phylogeny of Typhlocybinae (Hemiptera: Cicadellidae) reveals homoplasy in tribal diagnostic morphological traits
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  • Bin Yan,
  • Christopher Dietrich,
  • Xiaofei Yu,
  • Meng Jiao,
  • Renhuai Dai,
  • Maofa Yang
Bin Yan
Guizhou University
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Christopher Dietrich
Illinois Natural History Survey
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Xiaofei Yu
Guizhou University
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Meng Jiao
Shandong Museum
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Renhuai Dai
Guizhou University
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Maofa Yang
Guizhou University
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Abstract

The subfamily Typhlocybinae is a ubiquitous, highly diverse group of mostly tiny, delicate leafhoppers. The tribal classification has long been controversial and phylogenetic methods have only recently begun to test the phylogenetic status and relationships of tribes. To shed light on the evolution of Typhlocybinae, we performed phylogenetic analyses based on 28 newly sequenced and 19 previously sequenced mitochondrial genomes representing all currently recognized tribes. The results support the monophyly of the subfamily and its sister group relationship to Mileewinae. The tribe Zyginellini is polyphyletic with some included genera derived independently within Typhlocybini. Ancestral character state reconstruction suggests that some morphological characters traditionally considered important for diagnosing tribes (presence/absence of ocelli, development of hind wing submarginal vein) are homoplastic. Divergence time estimates indicate that the subfamily arose during the Middle Cretaceous and that the extant tribes arose during the Late Cretaceous. Phylogenetic results support establishment of a new genus, Subtilissimia Yan & Yang gen. nov., with two new species, Subtilissimia fulva Yan & Yang sp. nov. and Subtilissimia pellicula Yan & Yang sp. nov. (Typhlocybinae: Typhlocybini); but indicate that two previously recognized species of Farynala distinguished only by the direction of curvature of the processes of the aedeagus are synonyms, i.e., Farynala dextra Yan & Yang, 2017 equals Farynala sinistra Yan & Yang, 2017 syn. nov. A key to tribes of Typhlocybinae is provided.
19 Mar 2022Submitted to Ecology and Evolution
21 Mar 2022Submission Checks Completed
21 Mar 2022Assigned to Editor
07 Apr 2022Reviewer(s) Assigned
22 Apr 2022Review(s) Completed, Editorial Evaluation Pending
26 Apr 2022Editorial Decision: Revise Minor
06 May 20221st Revision Received
06 May 2022Submission Checks Completed
06 May 2022Assigned to Editor
06 May 2022Review(s) Completed, Editorial Evaluation Pending
13 May 2022Editorial Decision: Accept