Redefining Ormyridae (Hymenoptera, Chalcidoidea) with establishment of subfamilies and description of new genera

The circumscription of the family Ormyridae (Hymenoptera: Chalcidoidea) is revised after phylogenetic analysis based on ultra-conserved elements (UCEs) and comparative morphological assessment of the chalcid 'Gall Clade'. Six genera are treated in the family, including two new genera, Halleriaphagus van Noort and Burks, gen. nov., and Ouma Mitroiu, gen. nov. One genus, Eubeckerella Narendran, is re-assigned to the family, and Ormyrulus Bou & ccaron;ek is synonymised with Ormyrus Westwood, syn. nov., resulting in the new combination Ormyrus gibbus (Bou & ccaron;ek), comb. nov. The six genera are classified in three subfamilies, two of which are newly described, Asparagobiinae van Noort, Burks, Mitroiu and Rasplus, subfam. nov., and Hemadinae van Noort, Burks, Mitroiu and Rasplus, subfam. nov. Halleriaphagus is established for the newly described type species Halleriaphagus phagolucida van Noort and Burks, sp. nov., and Ouma is erected for O. daleskeyae Mitroiu, sp. nov., and O. emazantsi Mitroiu, sp. nov. Asparagobius is revised with description of Asparagobius bouceki van Noort, sp. nov., and Asparagobius copelandi Rasplus and van Noort, sp. nov. Asparagobius and Halleriaphagus are classified in Asparagobiinae, Hemadas in Hemadinae and Eubeckerella, Ormyrus and Ouma in Ormyrinae. The molecular support defining the ormyrid clade is corroborated by the proposed morphological synapomorphy of a foliaceous prepectus overlying the tegula base. Identification keys to the genera of Ormyridae and to the species of Asparagobius and Ouma are provided. Online Lucid identification keys and images of all the species treated herein are available at: .Zoobank Registration: LSID . We redefine the circumscription of Ormyridae based on a phylogenomic dataset and morphological reassessment. Based on the phylogenetic results and comparative morphological assessment, subfamilies are established for the first time. The results support the description of two new genera Halleriaphagus van Noort and Burks, gen. nov., and Ouma Mitroiu, gen. nov., and five new species. Well-illustrated keys are provided to subfamilies, genera and species. Ormyridae are associated with plant galls, either as gall formers or as parasitoids of gall formers. Asparagobius form galls on Asparagus (Asparagaceae); Hemadas produces galls on Vaccinium (Ericaceae); Halleriaphagus galls Halleria (Stilbaceae); Ormyrus are parasitoids of gall formers. image