Discovery of a Nitidulidae in Cretaceous Burmese amber (Coleoptera, Cucujoidea) with description of a new genus and taxonomic notes

Published on Sep 1, 2018in Cretaceous Research2.12
· DOI :10.1016/j.cretres.2018.03.021
Alexander G. Kirejtshuk13
Estimated H-index: 13
(CNRS: Centre national de la recherche scientifique),
Philipp E. Chetverikov12
Estimated H-index: 12
(SPbU: Saint Petersburg State University)
Abstract The present paper describes a new genus and species, Sorodites angustipes, that represents the first nitidulid found in Cretaceous Burmese amber. It is assigned to the Soronia -generic complex (subfamily Nitidulinae, tribe Nitidulini). This specimen differs from all known members of the family by its subcylindrical to cylindrical tarsomere 3 (not lobed as in most members of the family), the pro- and mesotarsi with lobed tarsomeres 1 and 2, and also from all members of the subfamily Nitidulinae by its antennal club having a weak dorsoventral compression. The exuvium described as probable Sorodites angustipes represents a first Mesozoic remains of preimaginal instar of the family Nitidulidae. The Soronia- and Phenolia -complexes are re-defined and clarified, and attribution of the genus Cacconia Sharp, 1890 to the second complex is confirmed.
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