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Type: Article
Published: 2019-09-12
Page range: 475–488
Abstract views: 192
PDF downloaded: 101

Genomic analysis of the tribe Emesidini (Lepidoptera: Riodinidae)

Departments of Biophysics and Biochemistry, University of Texas Southwestern Medical Center, and 3Howard Hughes Medical Institute, 5323 Harry Hines Blvd, Dallas, TX, USA 75390-9050
Departments of Biophysics and Biochemistry, University of Texas Southwestern Medical Center, and 3Howard Hughes Medical Institute, 5323 Harry Hines Blvd, Dallas, TX, USA 75390-9050
Departments of Biophysics and Biochemistry, University of Texas Southwestern Medical Center, and 3Howard Hughes Medical Institute, 5323 Harry Hines Blvd, Dallas, TX, USA 75390-9050 present address: Institute for Protein Design and Department of Biochemistry, University of Washington, 1959 NE Pacific Street, HSB J-405, Seattle, WA, USA 98195
Departments of Biophysics and Biochemistry, University of Texas Southwestern Medical Center, and 3Howard Hughes Medical Institute, 5323 Harry Hines Blvd, Dallas, TX, USA 75390-9050
Lepidoptera biodiversity genomic sequencing museomics phylogeny metalmark butterflies


We obtained and phylogenetically analyzed whole genome shotgun sequences of nearly all species from the tribe Emesidini Seraphim, Freitas & Kaminski, 2018 (Riodinidae) and representatives from other Riodinidae tribes. We see that the recently proposed genera Neoapodemia Trujano, 2018 and Plesioarida Trujano & García, 2018 are closely allied with Apodemia C. & R. Felder, [1865] and are better viewed as its subgenera, new status. Overall, Emesis Fabricius, 1807 and Apodemia (even after inclusion of the two subgenera) are so phylogenetically close that several species have been previously swapped between these two genera. New combinations are: Apodemia (Neoapodemia) zela (Butler, 1870), Apodemia (Neoapodemia) ares (Edwards, 1882), and Apodemia (Neoapodemia) arnacis (Stichel, 1928) (not Emesis); and Emesis phyciodoides (Barnes & Benjamin, 1924) (not Apodemia), assigned to each genus by their monophyly in genomic trees with the type species (TS) of the genus. Surprisingly, we find that Emesis emesia Hewitson, 1867 is not grouped with Emesis, but in addition to Apodemia forms a third lineage of similar rank, here named Curvie Grishin, gen. n. (TS: Symmachia emesia Hewitson, 1867). Furthermore, we partition Emesis into 6 subgenera (4 new): Emesis (TS: Hesperia ovidius Fabricius, 1793, a subjective junior synonym of Papilio cereus Linnaeus, 1767), Aphacitis Hübner, [1819] (TS: Papilio dyndima Cramer, [1780], a subjective junior synonym of Papilio lucinda Cramer, [1775]), Poeasia Grishin, subgen. n. (TS: Emesis poeas Godman, [1901]), Mandania Grishin, subgen. n. (TS: Papilio mandana Cramer, [1780]), Brimia Grishin, subgen. n. (TS: Emesis brimo Godman & Salvin, 1889), and Tenedia Grishin, subgen. n. (TS: Emesis tenedia C. & R. Felder, 1861). Next, genomic comparison of primary type specimens suggests new status for Emesis vimena Schaus, 1928 as a subspecies of Emesis brimo Godman & Salvin, 1889, Emesis adelpha Le Cerf, 1958 with E. a. vicaria Le Cerf, 1958 are subspecies of Emesis heteroclita Stichel, 1929, and Emesis tristis Stichel, 1929 is not a synonym of E. brimo vimena but of Emesis lupina Godman & Salvin, 1886. A new status of a species is given to the following taxa: Emesis furor A. Butler & H. Druce, 1872 (not a subspecies of E. mandana (Cramer, 1780)), Emesis melancholica Stichel, 1916 (not a subspecies of E. lupina Godman & Salvin, 1886), Emesis progne (Godman, 1903) (not a subspecies of E. brimo Godman & Salvin, 1889), and Emesis opaca Stichel, 1910 (not a synonym of E. lucinda (Cramer, 1775)). Emesis castigata diringeri Gallard 2008 is a subjective junior synonym of E. opaca, new status. Finally, Xanthosa Grishin, gen. n. (TS: Charmona xanthosa Stichel, 1910) is proposed for a sister lineage of Sertania Callaghan & Kaminski, 2017 and Befrostia Grishin, gen. n. (TS: Emesis elegia Stichel, 1929) is proposed for a clade without apparent phylogenetic affinities that we place in Befrostiini Grishin, trib. n. In conclusion, genomic data reveal a number of errors in the current classification of Emesidini and allow us to confidently reclassify the tribe partitioning it in three genera: Apodemia, Curvie gen. n. and Emesis.



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