| Tomostethus | |
|---|---|
 | |
| Tomostethus nigritus | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | Pancrustacea |
| Class: | Insecta |
| Order: | Hymenoptera |
| Suborder: | Symphyta |
| Family: | Tenthredinidae |
| Subfamily: | Blennocampinae |
| Genus: | Tomostethus Konow, 1886 |
Tomostethus is a genus of sawflies. It includes the species Tomostethus multicinctus, Tomostethus nigritus, and others. It was first described in 1886.
