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Who’s that girl? A singular Tropiduchidae planthopper from the Eocene Baltic amber (Hemiptera: Fulgoromorpha)

Jacek Szwedo and Adam Stroiński

Plain Language Abstract

Tropiduchidae (planthoppers) is a family with extremely high morphological disparity resulting in numerous tribes, both extant and extinct, placed within. Here we describe a new tribe of these insects from the Eocene Baltic amber, presenting a peculiar set of morphological characters not found in any of known recent or fossil representatives of the family. The morphological peculiarities of this fossil are expressed by ‘flatoidinisation syndrome’ which is discussed in the paper.

Resumen en Español

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Traducción: Enrique Peñalver (Sociedad Española de Paleontología) or Diana Elizabeth Fernández

Résumé en Français

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Translator: Antoine Souron

Deutsche Zusammenfassung

Who’s that girl? Eine einzelne tropiduchide Spitzkopfzikade aus dem eozänen Baltischen Bernstein (Hemiptera: Fulgoromorpha)

Ein neuer Tribus tropiduchider Spitzkopfzikaden aus dem Baltischen Bernstein - Gedanotropidini trib. nov. mit der neuen Gattung und Art Gedanotropis sontagae gen. et sp. nov. wird beschrieben. Es wird ein Schlüssel zu den Tribus und Gattungen der Tropiduchidae aus dem eozänen Baltischen Bernstein vorgelegt. FT-IR-Spectrophotometrie wird zur Herkunftsbestätigung von Museumsmaterial und seiner Dokumentation vorgeschlagen. Es werden die ökoevolutionären Auswirkungen von bestimmten morphologischen Merkmalen der neuen Taxa diskutiert und das ‘Flatoidinisationsssyndrom’ wird eingeführt.

Schlüsselwörter: neuer Tribus; neue Gattung; neue Art; ‘Flatoidinisationsssyndrom’; Baltischer Bernstein

Translator: Eva Gebauer

Arabic

Translator: Ashraf M.T. Elewa

 

 

APPENDIX 1.

Classification systems of Tropiduchidae.

Fennah (1982) Additions and changes as of 2013 Gnezdilov (2013b) and this study
Tribe Subtribe Subfamily Tribe Subtribe
Alcestini Melichar, 1914     Tropiduchinae Stål, 1866 Alcestini Melichar, 1914  
Catullini Melichar, 1914       Catullini Melichar, 1914  
        Chrysopuchini Gnezdilov, 2013  
Cixiopsini Fennah, 1982       Cixiopsini Fennah, 1982  
Cyphoceratopini Fennah, 1945       Cyphoceratopini Fennah, 1945  
Eporini Fennah, 1982 Eporina Fennah, 1982     Eporini Fennah, 1982 Eporina Fennah, 1982
  Clardeina Fennah, 1982       Clardeina Fennah, 1982
Eutropistini Kirkaldy, 1906 Duriina Fennah, 1982     Eutropistini Kirkaldy, 1906 Duriina Fennah, 1982
  Eutropistina Fennah, 1982       Eutropistina Fennah, 1982
  Kazerunina Dlabola, 1977       Kazerunina Dlabola, 1977
Isporisini Fennah, 1982       Isporisini Fennah, 1982  
Neomatissini, Fennah 1982       Neomatissini, Fennah, 1982  
Paricanini Melichar 1914       Paricanini Melichar, 1914  
Tambiniini Kirkaldy, 1907       Tambiniini Kirkaldy, 1907  
Tangiini Melichar, 1914 Tangiina Fennah, 1982     Tangiini Melichar, 1914 Tangiina Fennah, 1982
  Neotangiina Fennah, 1982       Neotangiina Fennah, 1982
    Trienopini Fennah, 19541   Trienopini Fennah, 1954  
Trypetimorphini Melichar, 1914       Trypetimorphini Melichar, 1914  
Turneriolini Fennah, 1982       Turneriolini Fennah 1982  
Tropiduchini Melichar, 1914       Tropiduchini Melichar, 1914  
    †Jantaritambini Szwedo, 2000   †Jantaritambini Szwedo, 20002  
    †Emilianini Shcherbakov, 2007   †Emilianini Shcherbakov, 20073  
    Gaetuliini Fennah, 19784 Elicinae Melichar, 1915 Elicini Melichar, 1915  
        Parathiscini Gnezdilov, 2013  
        Bucini Gnezdilov, Bartlett and Bourgoin, 2016  
    †Austrini Szwedo and Stroiński, 2010   †Austrini Szwedo and Stroiński, 20105  
    †Patollini Szwedo and Stroiński, 2013   †Patollini Szwedo and Stroiński, 20136  
        Gedanotropidini trib. nov.  

 

1 Transferred from Issidae by Gnezdilov (2007).

2 Described from Eocene Baltic amber. Provisionally placed in Tropiduchinae by Gnezdilov (2013b).

3 Described from Eocene imprint of Green River Formation, Colorado, U.S.A. Provisionally placed in Tropiduchinae by Gnezdilov (2013b).

4 The taxon was established as subtribe Gaetuliina Fennah, 1978 in the tribe Bladinini of the family Nogodinidae. Gnezdilov (2007) transferred it as tribe, to Tropiduchidae. Gnezdilov (2013b) synonymized Gaetuliina under Elicini Melichar, 1915. Provisionally placed in Elicinae by Gnezdliov (2013).

5 Described from Eocene Baltic amber. Provisionally placed in Elicinae by Gnezdliov (2013b).

6 Described from Eocene Baltic amber. Provisionally placed in Elicinae by Gnezdliov (2013b).

 

 

APPENDIX 2.

Key to identification of Tropiduchidae genera from Baltic amber.

1. Tegmina macropterous 3
  - Tegmina brachypterous 2
2. Costal area absent; stems ScP+R, MP and CuA leaving basal cell separately, forked distinctly basad of half of tegmen length Austrini
genus Austris Szwedo and Stroiński, 2010
  - Costal area present, not reaching to apex of clavus; stems ScP+R and MP leaving basal cell with short common stalk; common portion of branches MP and CuA present Patollini
genus Patollo Szwedo and Stroiński, 2013
3. Venation not reticulate, wide costal area absent, head with compound eyes narrower than pronotum Jantaritambiini
genus Jantaritambia Szwedo, 2000
  - Venation reticulate, wide costal area with transverse veinlets present 4
4. Head with compound eyes wider than pronotum; tegmen venation forming regular polygonal cells; gonoplac with teeth Elicini
genus Tritophania Jacobi, 1938
  - Head with compound eyes narrower than pronotum; tegmen with transverse veinlets forming irregular network; gonoplac without teeth Gedanotropidini trib. nov.
genus Gedanotropis gen. nov.
 

author1Jacek Szwedo. Laboratory of Evolutionary Entomology, Department of Invertebrate Zoology and Parasitology, Faculty of Biology, University of Gdańsk, 59, Wita Stwosza St., PL80-308 Gdańsk, Poland. This email address is being protected from spambots. You need JavaScript enabled to view it.

Jacek Szwedo. Department of Invertebrate Zoology and Parasitology, University of Gdańsk, 59, Wita Stwosza Street, PL80-308 Gdańsk, Poland; This email address is being protected from spambots. You need JavaScript enabled to view it.
Jacek Szwedo received his M.Sc. (1990) and Ph.D. (1997) at University of Silesia in Katowice, and his habilitation dissertation he defended at the Museum and Institute of Zoology, Polish Academy of Sciences in Warsaw (2013). He used to work at Department of Zoology, University of Silesia in Katowice, Museum and Institute of Zoology, Polish Academy of Sciences in Warsaw, and since 2014 at the Department of Invertebrate Zoology and Parasitology, University of Gdańsk. Since May 2017 he is Head of Laboratory of Evolutionary Entomology and Museum of Amber Inclusions, University of Gdańsk. His research interests cover evolution, taxonomic diversity and morphological disparity, systematics and distribution of the Hemiptera, particularly Fulgoromorpha and Cicadomorpha, and their relatives. He is studying inclusions in amber, rock-preserved fossils, as well as modern representatives of the hemipterans, to recover their morphology, phylogeny, taxonomy, evolutionary and biogeographical scenarios, palaeoecology and palaeobiodiversity.

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author2Adam Stroiński. Museum and Institute of Zoology, Polish Academy of Sciences, 64, Wilcza St., PL00-679 Warszawa, Poland. This email address is being protected from spambots. You need JavaScript enabled to view it.

Adam Stroiński. Museum and Institute of Zoology, Polish Academy of Sciences, 64, Wilcza St., PL00-679 Warszawa, Poland; This email address is being protected from spambots. You need JavaScript enabled to view it.
Adam Stroiński received his M.Sc. in biology at Warsaw University in 1996. Since 1997 he is working at Museum and Institute of Zoology, Polish Academy of Sciences in Warsaw, when he graduated Ph.D. in 2007. His research are is covering various aspects of evolution, classification, biogeography and phylogeny of planthoppers and leafhoppers (Hemiptera: Fulgoromorpha et Cicadomorpha). His studies cover recent material and fossil specimens. 

 

FIGURE 1. 1-2, FT-IR spectra of the amber specimen MAI UG 508762: FT-IR spectrum (1) and ATR corrected FT-IR spectrum with baseline corrected (2). 3-4, Piece of amber MAI UG 508762 with inclusion of Gedanotropis sontagae gen. et sp. nov., lower (3) and upper (4) sides.

 figure1

FIGURE 2. Gedanotropis sontagae gen. et sp. nov. 1, Head, pronotum and mesonotum, dorsal view; 2, face, ventrolateral view; 3, tegmen (venation partly reconstructed); 4, hind wing (visible portion); 5, left hind leg; and 6, female genital block.

figure2 

FIGURE 3. Gedanotropis sontagae gen. et sp. nov. tegmen venation with veins, cells and areas indicated.

 figure3

FIGURE 4. Gedanotropis sontagae gen. et sp. nov. 1, Anterior portion of the body; 2, head in lateral view; 3, habitus of the specimen; 4, tegmen and hind wing; 5, body in lateroventral view; and 6, female genital block (ventrolateral view).figure4