Intertaxon relationships
Aceria plicator (Nalepa, 1890)
[1]
Orobanche densiflora Salzm. ex Reuter 
Orobanche schelkovnikovii Tzvelev
Catapion seniculus (W. Kirby, 1808)
Protapion filirostre (W. Kirby, 1808)
Sitona hispidulus (Fabricius, 1777)
Sitona humeralis Stephens, 1831
Sitona lineatus (Linnaeus, 1758) - Pea Leaf Weevil
Tychius crassirostris Kirsch, 1871
Tychius medicaginis C. N. F. Brisout de Barneville, 1863
consumer (larval stage only)
Hypera melancholica (Fabricius, 1792)
Hypera meles (Fabricius, 1792)
Hypera miles (Paykull, 1792)
Hypera nigrirostris (Fabricius, 1775)
Hypera postica (Gyllenhal, 1813)
Links and literature
[1] Máca J. (2017): Neglected Eriophyoid Mites with Conspicuous Galls: Concealed Biodiversity, Živa 3/2017, 133 [as Medicago]
Máca J. (2017): Neglected Eriophyoid Mites with Conspicuous Galls: Concealed Biodiversity, Živa 3/2017, 133 [as Medicago]