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New earwig nymphs (Dermaptera: Pygidicranidae) in mid-Cretaceous amber from France |
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| Authors: | Vincent Perrichot Michael S Engel |
| Institution: | a CNRS UMR 6118, Géosciences and Observatoire des Sciences de l’Univers de Rennes, Université Rennes 1, Campus de Beaulieu bât. 15, 263 avenue du Général Leclerc, 35042 Rennes Cedex, France b Division of Entomology (Paleoentomology), Natural History Museum, Department of Ecology and Evolutionary Biology, 1501 Crestline Drive, Suite 140, University of Kansas, Lawrence, Kansas 66049-2811, USA c CNRS UMR 7205, Muséum National d’Histoire Naturelle, CP 50, Entomologie, 45 rue Buffon, F-75005 Paris, France d European Synchrotron Radiation Facility, BP220, 6 rue Jules Horowitz, 38043 Grenoble Cedex, France |
| Abstract: | A new genus and species of earwig is described and figured from Early Cretaceous (Latest Albian-Earliest Cenomanian) amber of southwestern France. The holotype was studied using traditional light microscopy as well as through propagation phase contrast X-ray synchrotron microtomography, rendering high resolution three-dimensional models for critical examination. Gallinympha walleri Perrichot & Engel, new genus and species, is represented by two late instar nymphs missing only portions of the abdomen, as well as most of the head for the paratype. The genus is a member of the Pygidicranidae, one of the most basal of living earwigs, and is distinguished from other taxa in the family. A thorough account of the specimen’s morphology is provided along with a detailed comparison with similar structures across a diversity of primitive earwig lineages. |
| Keywords: | Dermaptera Neodermaptera Pygidicranidae Cretaceous Albian-Cenomanian Charentese amber |
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