A new fossil genus and species of Cantharidae, Nothotytthonyxserratus Li, Biffi, Kundrata & Cai gen. et sp. nov., is reported from mid-Cretaceous Burmese amber. The new species is tentatively attributed to the extant subfamily Malthininae based on a combination of characters, including the symmetrical apical maxillary palpomeres, shortened elytra, pronotum with arched margins and well-defined borders, tibiae with apical spurs, and tarsal claws simple, although its well-developed gonostyli are atypical in Malthininae. The discovery of Nothotytthonyx also suggests a possible Gondwanan origin for Malthininae.

Department of Zoology Faculty of Science Palacký University 77900 Olomouc Czech Republic Palacký University Olomouc Czech Republic

Museu de Zoologia Universidade de São Paulo Av Nazaré 481 Ipiranga 04263 000 São Paulo SP Brazil Universidade de São Paulo São Paulo Brazil

School of Earth Sciences University of Bristol Life Sciences Building Tyndall Avenue Bristol BS8 1TQ UK University of Bristol Bristol United Kingdom

State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and Palaeontology and Centre for Excellence in Life and Paleoenvironment Chinese Academy of Sciences Nanjing 210008 China Centre for Excellence in Life and Paleoenvironment Chinese Academy of Sciences Nanjing China

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