Trioza scottii

on 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).