Intertaxon relationships
species
Hawthorn
Crataegus monogyna Jacq.
Rhamphus oxyacanthae (Marsham, 1802) 
Rhamphus subaeneus Illiger, 1808
Grammoptera ruficornis (Fabricius, 1781)
Tetrops gilvipes (Faldermann, 1837)
Tetrops praeustus praeustus (Linnaeus, 1758)