Megalodontesidae
The Megalodontesidae are a small family of sawflies, containing a single living genus, Megalodontes, with some 40 species restricted to the temperate regions of Eurasia. Larvae of Megalodontesidae feed on herbaceous plants. They are distinguished from the closely related Pamphiliidae by their serrate or pectinate antennae.
In 2016, a phylogenetic analysis of the superfamily Pamphilioidea found that the extinct family Praesiricidae was paraphyletic with respect to Megalodontesidae, so Praesiricidae was proposed as a synonym of Megalodontesidae.
Genera
As of 2016, the following genera belong to the family Megalodontesidae, divided into four subfamilies:- Subfamily Megalodontesinae
- * †Aulidontes
- * †Jibaissodes
- * Megalodontes
- * †Rudisiricius
- Subfamily Archoxyelydinae
- * †Archoxyelyda
- * †Xyelydontes
- Subfamily Decorisiricinae
- * †Brevisiricius
- * †Decorisiricius
- * †Limbisiricius
- Subfamily Praesiricinae
- * †Praesirex
- * †Turgidontes
- Incertae sedis
- * †Hoplitolyda
- * †''Sinosepulca''