Rhamnus alpina, Spanish Pyrenees, Huesca © Ben van As

Ramnus alaternus, France, dép Var, Toulon, Saint-Mandrien-sur-Mer © Stéphane Claerebout

hostplants

Rhamnaceae, monophagous

Rhamnus alaternus, alpina, lycioides subsp. oleoides, pumila.

notes

the identification if the pictures above is very unsatisfactory. Although the galling of R. alpina would suggest a mite gall, kiefferi is its only gall-causer mentioned in the literature (Cogolludo, Houard). The picture by Hoaurd of the gall of kiefferi on Rh. alaternus, reproduced below, probably shows an extreme example; on the internet circulate pictures, atrributed to kiefferi with much more conical galls. But is is not sure if the galls of Trioza marginepunctata always remain as low as illustrated by Houard.

Rhamnus alarnus, from Houard (1909)

references

Béguinot (2002a,h, 2003a, 2007a, 2012a), Buhr (1965a), Cogolludo (1921a), Conci, Rapisarda & Tamanini (1996a), Dauphin & Aniotsbehere (1997a), Houard (1909a), Ouvrard, Burckhardt & Cocquempot (2015a), Seljak (2020a).