Unveiling ancient diversity of long-tailed wasps (Hymenoptera: Megalyridae): new taxa from Cretaceous Kachin and Taimyr ambers and their phylogenetic affinities

• Published in: Arthropod Systematics & Phylogeny
• Main Authors: Brazidec, Manuel, Vilhelmsen, Lars, Boudinot, Brendon E., Richter, Adrian, Hammel, Joerg U., Perkovsky, Evgeny, E., Fan, Yong, Wang, Zhen, Wu, Qiong, Wang, Bo, Perrichot, Vincent
• Other Authors: Géosciences Rennes (GR), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS), Institut de Systématique, Evolution, Biodiversité (ISYEB ), Muséum national d'Histoire naturelle (MNHN)-École Pratique des Hautes Études (EPHE), Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Chinese Academy of Medical Sciences Chengdu, China (CAMS), University of Copenhagen = Københavns Universitet (UCPH), Friedrich-Schiller-Universität = Friedrich Schiller University Jena Jena, Germany, Smithsonian Institution, Senckenberg Research Institute and Natural History Museum Frankfurt, Senckenberg – Leibniz Institution for Biodiversity and Earth System Research - Senckenberg Gesellschaft für Naturforschung, Leibniz Association-Leibniz Association, Okinawa Institute of Science and Technology Graduate University, Helmholtz-Zentrum Hereon, National Academy of Sciences of Ukraine = Національна академія наук України = Académie nationale des sciences d'Ukraine (NASU / НАН України), IT University of Copenhagen (ITU), Capital Normal University Beijing, Chinese Academy of Sciences Nanjing Branch, National Natural Science Foundation of China 42125201, Second Tibetan Plateau Scientific Expedition and Research 2019QZKK0706, Alexander von Humboldt research fellowship; Peter S. Buck research fellowship from the Smithsonian Institution; Scholars at Risk Ukraine (SARU) - Villum Foundation; Carlsberg Foundation; Nordisk Foundation
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2024
• Subjects: Megalyroidea; Myanmar; Taimyr; Albian-Cenomanian; Santonian; phylogeny; [SDU]Sciences of the Universe [physics]; Rigel; Kheta
• Online Access: https://hal.science/hal-04616196; https://hal.science/hal-04616196/document; https://hal.science/hal-04616196/file/ASP_article_111148_en_1.pdf; https://doi.org/10.3897/asp.82.e111148

International audience The Megalyridae are a small family of parasitoid wasps comprising eight extant genera (71 species) and six extinct genera (13 species). Here, we report eight new species from Late Cretaceous Kachin (Myanmar) and Taimyr (Russia) ambers; the family is recorded for the first time from the latter. dagger Cretolyra noijebumensis gen. et sp. nov., dagger Cretolyra shawi gen. et sp. nov., dagger Genkyhag innebula gen. et sp. nov., dagger Megacoxa chandrahrasa gen. et sp. nov., dagger Megacoxa janzeni gen. et sp. nov., and dagger Megacoxa synchrotron gen. et sp. nov., are described from late Albian - early Cenomanian Kachin amber; dagger Kamyristi exfrigore gen. et sp. nov. and dagger Kamyristi yantardakhensis gen. et sp. nov. from Taimyr amber (Baikura, late Albian - early Cenomanian Ognevka Formation and Yantardakh, Santonian Kheta Formation, respectively). Phylogenetic analyses of the family are presented and the classification of the Megalyridae is revised accordingly. A new tribe, dagger Megalavini trib. nov., is erected to accommodate dagger Cretolyra gen. nov., dagger Genkyhag gen. nov., dagger Megacoxa gen. nov. together with dagger Megalava Perrichot, 2009; dagger Megalavini trib. nov. is characterized by the vein M fully pigmented and veins Rs+M and M+Cu aligned, the crenulate mesometapectal sulcus, and the pronotal spiracle not posteriorly surrounded by cuticle. This spiracular condition was previously only observed in dagger Megazar Perrichot, 2009, thus the subfamily dagger Megazarinae Perrichot, 2009 stat. nov. is proposed for the clade (dagger Megalavini + dagger Megazar), as sister to the remaining Megalyridae. The latter is defined as the Megalyrinae, with dagger Kamyristi gen. nov. being retrieved as sister to all other genera except Rigel Shaw, 1987 under parsimony analyses. To align phylogeny with classification, three new tribes are erected (dagger Kamyristini trib. nov., dagger Megallicini trib. nov., and dagger Valaaini trib. nov.) and the dagger Cretodinapsini is ...