A New Subgenus of the Genus (Coleoptera, Nitidulidae) from Myanmar Cretaceous Amber with Taxonomic, Phylogenetic and Bionomic Notes on the 'Nitidulid' Group of Families.

A new subgenus, subgen. nov., is described from the Cretaceous amber of North Myanmar (Kachin State) and assigned to the genus . The type species of the new subgenus, () subgen. et sp. nov., is characterized by a rather 'archaic' aspect. A discussion of the diagnostic and structure of the -complex of genera (together with the -complex of genera) (Nitidulinae, Nitidulini) is proposed. Reasons for the 'conservatism' of this group during the Mesozoic and Cenozoic are discussed. The position of the Apophisandridae stat. nov. (type genus ) and the transfers of the following genera into this family: , Polliniretes, Protokateretes, , and from the Kateretidae, Nitidulidae or Cerambycidae are grounded. The relations of the family Parandrexidae (with inclusion of the genus transferred from Boganiidae with a proposal of the subfamily Cretoparacucujinae subfam.nov.), and are considered. The genus gen. nov. (type species ) is assigned to the new subfamily, Antirhelinae subfam. nov. in the family Kateretidae. The fossil records of the 'nitidulid' group of families (Apophisandridae stat. nov., Kateretidae, Nitidulidae, Parandrexidae, Smicripidae and possibly Boganiidae) are reviewed. The relationship of the family Boganiidae, some aspects of pollination and pollinophagy, and also changes in beetle diet in the past are discussed. The lectotype of is designated.