Xiphydriidae

Xiphydriidae are a family of wood wasps that includes around 150 species. They are located all over the world including North and South America, Australia, Europe, and others. Xiphydriidae larvae are wood borers in dead trees or branches of a range of trees. They are characterized as having long and skinny necks with dome-shaped heads. The oldest fossils of the group are from the mid Cretaceous.

==Genera== These 29 genera belong to the family Xiphydriidae: Alloxiphia Wei, 2002 Austrocyrta Riek, 1955 Austroxiphyda Jennings, Macdonald, Schiff & Parslow, 2021 Brachyxiphus Philippi, 1871 Calexiphyda Smith, 2008 Carinoxiphia Wei, 1999 Derecyrta Smith, 1860 Eoxiphia Maa, 1949 Euxiphydria Semenov-Tian-Shanskii & Gussakovskii, 1935 Genaxiphia Maa, 1949 Gryponeura Benson, 1954 Heteroxiphia Saini & Singh, 1987 Hyperxiphia Maa, 1949 Indoxiphia Maa, 1949 Lataxiphyda Smith, 2008 Lissoxiphyda Smith, 2008 Megaxiphia Wei, 1999 Moaxiphia Maa, 1949 Obesaxiphyda Smith, 2008 Platyxiphydria Takeuchi, 1938 Rhysacephala Benson, 1954 Steirocephala Benson, 1954 Trixiphidia Wei, 1999 Xiphidiaphora Benson, 1954 Xiphydria Latreille, 1802 Xiphydriola Semenov-Tian-Shanskii, 1921 Yangixiphia Wei, 2002 † Paraxiphydria Gao et al., 2022 Burmese amber, Myanmar Cretaceous Albian-Cenomanian