Flat-footed Females and Missing Males:A New Genus and Species of Pleciofungivoridae(Diptera:Bibionomorpha)Represents the First Record of the Family from Mid-Cretaceous Kachin AmberOACSTPCD
Flat-footed Females and Missing Males:A New Genus and Species of Pleciofungivoridae(Diptera:Bibionomorpha)Represents the First Record of the Family from Mid-Cretaceous Kachin Amber
A new genus and species,Cretopleciofungivora simpsoni gen.et sp.nov.,from the extinct family Pleciofungivoridae(Diptera:Bibionomorpha),is discovered in mid-Cretaceous Kachin amber.Previously,this family was known only from imprints in sedimentary rocks of the Jurassic and the Lower Cretaceous.Discovery of a representative of Pleciofungivoridae in Kachin amber confirms the presence of the family in the Upper Cretaceous.The new species has a unique structure of fore tarsus,with lobed and extended tarsal segments Ⅱ to Ⅳ,a feature hitherto known only in a few species of extant Sciaroidea.Although not particularly rare,the new species is currently known only from female specimens.Possible reasons for this phenomenon,very unusual in Sciaroidea,are briefly discussed,including parthenogenesis as a potentially plausible hypothesis.
ZHANG Qingqing;Wiesław KRZEMIŃSKI;Jan ŠEVČÍK;Vladimir BLAGODEROV;Agnieszka SOSZYŃSKA;Kornelia SKIBIŃSKA
Yunnan Key Laboratory for Palaeobiology,Institute of Palaeontology,Yunnan University,Kunming 650500,China||MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment,Yunnan University,Kunming 650500,China||State Key Laboratory of Palaeobiology and Stratigraphy,Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment,Chinese Academy of Sciences,Nanjing 210008,ChinaInstitute of Systematics and Evolution of Animals,Polish Academy of Sciences,52551 Kraków,PolandUniversity of Ostrava,Faculty of Science,Department of Biology and Ecology,Chittussiho 10,CZ-71000 Ostrava,Czech RepublicNational Museums Scotland,Edinburgh,UK||Natural History Museum,London,UKUniversity of Lodz,Faculty of Biology and Environmental Protection,Department of Invertebrate Zoology and Hvdrobiology,Banacha 12/16,90-237 Łódź,Poland
fungus gnatsSciaroideaUpper CretaceousBurmese amberswollen tarsomeres
《地质学报（英文版）》 2024 (003)
541-547 / 7
This research was funded by the Science Foundation of Yunnan Province(Grant Nos.2015HA021 and 202401CF070913),the National Science Centre of Poland(Grant No.UMO-2016/23/B/NZ8/00936).Zhang Qingqing was supported by the Alexander von Humboldt Foundation.The authors are thankful to Krzysztof Szpila for his help with SEM photography and discussion about adaptions in Sarcophagidae.
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