The superfamily Siricoidea is an archaic group of the order Hymenoptera, consisting of six families (four extinct) of xylophagous sawflies. The group is well represented in early Tertiary and Mesozoic times, but a number of living taxa remain, including the family Anaxyelidae, which has recently been linked to this group (it was previously placed in its own superfamily, Anaxyeloidea).^[1] The female ovipositor is typically long and projects posteriorly, and is used to drill into wood.

Siricoidea Temporal range: Cretaceous-Present PreꞒ Ꞓ O S D C P T J K Pg N
Giant horntail (Urocerus gigas)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
(unranked):	Unicalcarida
Superfamily:	Siricoidea Families edit Anaxyelidae (cedar wood wasps) Siricidae (horntails) Xiphydriidae (wood wasps, sometimes treated as a separate superfamily, Xiphydrioidea) † Daohugoidae † Protosiricidae † Pseudosiricidae † Sinosiricidae References edit ^ Gao J, Engel MS, Shih C, Ren D, Gao T (2021) A new genus of anaxyelid wood wasps from the mid-Cretaceous and the phylogeny of Anaxyelidae (Hymenoptera). Journal of Hymenoptera Research 86: 151-169. https://doi.org/10.3897/jhr.86.73161