Trioza scottiion Berberis
Mahoberberis neubertii, Hungary, Budapest © László Érsek
same leaf, uderside
a single gall, from above
eggs in the gall pits (April 24)
young larve (May 12)
somewhat older larva (May 12)
gall
the leaf disc with small depressions at the underside, and corresponding tiny bulges at the upperside. In each cavity one flat larva, encircled by a “nimbus” of wax threads. One,
possibly two generations; hibernation as adults on conifers.
hostplants
Berberidaceae, monophagous
Berberis vulgaris, x Mahoberberis neuberti.
references
Béguinot (2002a,f, 2005a, 2012a), Buhr (1964b), Burckhardt (1983a, 2002a), Burckhardt & Freuler (2000a), Burckhardt & Kofler (1991a), Conci, Rapisarda & Tamanini (1996a), Dauphin & Aniotsbehere (1997a), Hellrigl (2004a), Houard (1908a [“scotti”]), Seljak (2006a, 2020a), Tomasi (2003a, 2014a).