| Timarcha | |
|---|---|
 | |
| Timarcha tenebricosa | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | Pancrustacea |
| Class: | Insecta |
| Order: | Coleoptera |
| Suborder: | Polyphaga |
| Infraorder: | Cucujiformia |
| Family: | Chrysomelidae |
| Subfamily: | Chrysomelinae |
| Tribe: | Timarchini Motschulsky, 1860 |
| Genus: | Timarcha Samouelle, 1819 |
| Type species | |
| Chrysomela tenebricosa Fabricius, 1775 | |
Timarcha is a genus of leaf beetles in the family Chrysomelidae, with more than 100 described species in three subgenera. The most widely known species is T. tenebricosa, the bloody-nosed beetle. All species are black, wingless organisms. Timarcha are herbivorous species, living mostly on plants belonging to Rubiaceae and Plumbaginaceae, although a few can feed on Brassicaceae and Rosaceae. Timarcha is the only member of the tribe Timarchini.
