Abstract
The fossil record of Megaloptera (Insecta: Holometabola: Neuropterida) is very limited. Both megalopteran families, i.e., Corydalidae and Sialidae, have been found in the Eocene Baltic amber, comprising two named species in one genus of Corydalidae (Chauliodinae) and four named species in two genera of Sialidae. Here we report a new species of Chauliodinae from the Baltic amber, namely Nigronia prussia sp. nov.. The new species possesses a spotted hind wing with broad band-like marking, a well-developed stem of hind wing MA subdistally with a short crossvein to MP, a single straight RP branch separated between 1ra-rp and 2ra-rp in hind wing, and the hind wing A3 with anterior branch proximally touching A2. A tentative placement of the new species in Nigronia Banks, 1908, which is an extant genus endemic to eastern North America, is discussed in detail. Our finding provides new evidence indicating that the fishflies related to the extant species from eastern North America had occurred in Europe during the Early Tertiary.
References
Ansorge, J. (2001) Dobbertinia reticulata Handlirsch 1920 from the lower Jurassic of Dobbertin (Mecklenburg/Germany)—the oldest representative of Sialidae (Megaloptera). Neues Jahrbuch für Geologie und Paläontologie, 9, 553–564.
https://doi.org/10.1127/njgpm/2001/2001/553
Ansorge, J. (2007) A new Chauliodinae species (Megaloptera: Corydalidae) from the Eocene Baltic amber. Fossils X3, Insects and arthropods in amber, IV. International Congress of Palaeoentomology, Vitoria-Gasteiz, p. 50.
Banks, N. (1908) On the classification of the Corydalinae, with description of a new species. Proceedings of the Entomological Society of Washington, 10, 27–30.
Contreras-Ramos, A. (2011) Phylogenetic review of dobsonflies of the subfamily Corydalinae and the genus Corydalus Latreille (Megaloptera: Corydalidae). Zootaxa, 2862, 1–38.
https://doi.org/10.11646/zootaxa.2862.1.1
Engel, M.S., Winterton, S.L. & Breitkreuz, L.C.V. (2018) Phylogeny and evolution of Neuropterida: where have wings of lace taken us? Annual Review of Entomology, 63, 531–551.
https://doi.org/10.1146/annurev-ento-020117-043127
Hagen, H.A. (1856) Die im Bernstein befindlichen Neuropteren der Vorwelt bearbeitet von F. J. Pictet-Baraban, und Dr. H. Hagen. In: Berendt, G.C. (Ed.), Die im Bernstein befindlichen organischen Reste der Vorwelt gesammelt, in Verbindung mit mehreren bearbeitet und herausgegeben von Dr. Georg Carl Berendt. Bd. 2. Nicolai, Berlin, pp. 41–125.
Huang, D.Y., Azar, D., Engel, M.S., Cai, C.Y., Garrouste, R. & Nel, A. (2016) A new genus of alderflies (Megaloptera: Sialidae) in Upper Cretaceous Burmese amber. Cretaceous Research, 64, 7–11.
https://doi.org/10.1016/j.cretres.2016.03.012
Jepson, J.E. & Heads, S.W. (2016) Fossil Megaloptera (Insecta: Neuropterida) from the Lower Cretaceous Crato Formation of Brazil. Zootaxa, 4098 (1), 134–144.
https://doi.org/10.11646/zootaxa.4098.1.5
Kukalová-Peck, J. & Lawrence, J.F. (2004) Relationships among coleopteran suborders and major endoneopteran lineages: evidence from hind wing characters. European Journal of Entomology, 101, 95–144.
https://doi.org/10.14411/eje.2004.018
Liu, X.Y. (2019) Phylogeny of Megaloptera: A review of present knowledge. In: Weihrauch, F., Frank, O., Gruppe, A., Jepson, J.E., Kirschey, L. & Ohl, M. (Eds), Proceedings of the XIII International Symposium of Neuropterology, 17–22 June 2018, Laufen, Germany. Osmylus Scientific Publishers, Wolnzach, pp. 39–54.
https://doi.org/10.5281/zenodo.3572321
Liu, X.Y., Hayashi, F. & Yang, D. (2007) Revision of the Neochauliodes sinensis species-group (Megaloptera: Corydalidae: Chauliodinae). Zootaxa, 1511, 29–54.
https://doi.org/10.11646/zootaxa.1511.1.3
Liu, X.Y., Hayashi, F. & Yang, D. (2015a) Phylogeny of the family Sialidae (Insecta: Megaloptera) inferred from morphological data, with implications for generic classification and historical biogeography. Cladistics, 31, 18–49.
https://doi.org/10.1111/cla.12071
Liu, X.Y., Hayashi, F., Lavine, L.C. & Yang, D. (2015b) Is diversification in male reproductive traits driven by evolutionary trade-offs between weapons and nuptial gifts? Proceedings of the Royal Society B: Biological Sciences, 282, 20150247.
https://doi.org/10.1098/rspb.2015.0247
Liu, X.Y., Hayashi, F., Flint, O.S. Jr. & Yang, D. (2010) Systematics and biogeography of the Indo-Malaysian endemic Neochauliodes sundaicus species-group (Megaloptera: Corydalidae). European Journal of Entomology, 107, 425–440.
https://doi.org/10.14411/eje.2010.050
Liu, X.Y., Lu, X.M. & Zhang, W.W. (2017) Phylogenetic position of Corydasialidae (Insecta: Neuropterida) revisited based on a significant new fossil in Cretaceous amber of Myanmar. Journal of Systematic Palaeontology, 15, 571–581.
https://doi.org/10.1080/14772019.2016.1200148
Liu, X.Y., Lü, Y.N., Aspöck, H., Yang, D. & Aspöck, U. (2016) Homology of the genital sclerites of Megaloptera (Insecta: Neuropterida) and their phylogenetic relevance. Systematic Entomology, 41, 256–286.
https://doi.org/10.1111/syen.12154
Liu, X.Y., Wang, Y.J., Shih, C.K., Ren, D. & Yang, D. (2012) Early evolution and historical biogeography of fishflies (Megaloptera: Chauliodinae): implications from a phylogeny combining fossil and extant taxa. PLoS One, 7, e40345.
https://doi.org/10.1371/journal.pone.0040345
McKenna, M.C. (1983) Cenozoic paleogeography of North Atlantic land bridges. In: Bott, M.H.P., Saxov, S., Talwani, M. & Thiede, J. (Eds), Structure and development of the Greenland-Scotland bridge: New concepts and methods. Plenum, New York, pp. 351–395.
https://doi.org/10.1007/978-1-4613-3485-9_19
New, T.R. & Theischinger, G. (1993) Megaloptera (Alderflies, dobsonflies). Handbuch der Zoologie. Vol. 4 (Arthropoda: Insecta), part 33, Walter de Gruyter, Berlin, pp. 1–97.
Oswald, J.D. & Machado, R.J.P. (2018) Biodiversity of the Neuropterida (Insecta: Neuroptera: Megaloptera, and Raphidioptera). In: Foottit, R.G. & Adler, P.H. (Eds), Insect biodiversity: science and society. Vol. II. First Edition. John Wiley & Sons, New York, pp. 627–671.
https://doi.org/10.1002/9781118945582.ch21
Sanmartín, I., Enghoff, H. & Ronquist, F. (2001) Patterns of animal dispersal, vicariance and diversification in the Holarctic. Biological Journal of the Linnean Society, 73, 345–390.
https://doi.org/10.1006/bijl.2001.0542
Say, T. (1824) Order Neuroptera. In: Keating, W.H. (Ed.), Narrative of an expedition to the source of St. Peter’s River, Lake Winnepeek, Lake of the Woods, &c. &c. performed in the year 1823, by order of the Hon. J. C. Calhoun, Secretary of War, under the command of Stephen H. Long, Major U.S.T.E. Vol. 2. Carey and Lea, Philadelphia, pp. 303–310.
van Der Weele, H. W. (1909) New genera and species of Megaloptera Latr., Notes from the Leyden Museum, 30, 249–264.
van der Weele, H.W. (1910) Megaloptera (Latreille). Collections zoologiques du Baron Edm. de Selys Longchamps. Catalogue systématique et descriptif, 5, Hayez, Bruxelles, 1–93.
Wang, B. & Zhang, H.C. (2010) Earliest evidence of fishflies (Megaloptera, Corydalidae): An exquisitely preserved larva from the Middle Jurassic of China. Journal of Paleontology, 84, 774–780.
https://doi.org/10.1017/S0022336000058480
Wang, Y.Y., Liu, X.Y., Garzón-Orduña, I.J., Winterton, S.L., Yan, Y., Aspöck, U., Aspöck, H. & Yang, D. (2017) Mitochondrial phylogenomics illuminates the evolutionary history of Neuropterida. Cladistics, 33, 617–636.
https://doi.org/10.1111/cla.12186
Weitschat, W. & Wichard, W. (2002) Atlas of plants and animals in Baltic amber. F. Pfeil, Munich, 256 pp.
Wichard, W. (1997) Schlammfliegen aus Baltischen Bernstein (Megaloptera, Sialidae). Mitteilungen aus dem Geologisch-Paläontologischen Institut der Universität Hamburg, 80, 197–211.
Wichard, W. (2002) Eine neue Schlammfliege aus dem Baltischen Bernstein (Megaloptera, Sialidae). Mitteilungen aus dem Geologisch-Paläontologischen Institut der Universität Hamburg, 86, 253–261.
Wichard, W. (2003) Chauliodes, ein Großflügler im Baltischen Bernstein, (Megaloptera, Corydalidae). Mitteilungen aus dem Geologisch-Paläontologischen Institut der Universität Hamburg, 87, 177–158.
Wichard, W. & Engel, M.S. (2006) A new alderfly in Baltic amber (Megaloptera: Sialidae). American Museum Novitates, 3515, 1–9.
https://doi.org/10.1206/0003-0082(2006)3513[1:ANAIBA]2.0.CO;2
Wichard, W., Gröhn, C. & Seredszus, F. (2009) Aquatic insects in Baltic amber. Verlag Kessel, 336 pp.