Xestophanes brevitarsis (Thomson, 1877)
on Potentilla

Potentilla erecta, Belgium, prov. Namur, Couvin, Aublain © Sébastien Carbonnelle
gall
Unilocular, rotund, 2-3 mm large, ultimately brown, fleshy galls, according to Buhr and Nieves-Aldrey mainly at the base of the plant, according to Redfern & Shirley mainly on the aerial stems. Often several galls in a string.
host plants
Rosaceae, monophagous
Potentilla anglica, erecta, grandiflora, heptaphylla, incana, inclinata.
Contrary to the list above, Nieves-Adrey describes the species as strictly monophagous on P. erecta.
parasitoids, predators
Eupelmus vesicularis; Eurytoma rufipes; Gelis papaveris; Ophion abbreviator; Pteromalus isarchus; Sycophila concinna.
notes
the larva is described by Gómez Sanchez (2008a).
references
Askew, Plantard, Gómez, ao (2006a), Buhr (1965a), Dauphin & Aniotsbehere (1997a), Eady & Quinlan (1963a), Gómez, Hernández Nieves, Garrido Torres, ao (2006a), Gómez Sanchez (2008a), Hellrigl (2009a), Hellrigl & Bodur (2015a), Houard (1908a, Melika (2006a), Nieves-Aldrey (1984a, 2001a), Nieves-Aldrey & Askew (2002a), Redfern & Shirley (2011a), Roskam (2009a), Tavares (1905a).