Trioza scottii

on Berberis

Trioza scottii on Mahoberberis neubertii: galls

Mahoberberis neubertii, Hungary, Budapest © László Érsek

Trioza scottii on Mahoberberis neubertii: galls

same leaf, uderside

Trioza scottii on Mahoberberis neubertii: galls

a single gall, from above

Trioza scottii on Mahoberberis neubertii: eggs

eggs in the gall pits (April 24)

Trioza scottii on Mahoberberis neubertii: larvae

young larve (May 12)

Trioza scottii on Mahoberberis neubertii: larva

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), Conci, Rapisarda & Tamanini (1996a), Dauphin & Aniotsbehere (1997a), Hellrigl (2004a), Seljak (2006a), Tomasi (2003a, 2014a).

pub 27.iii.2017 · mod 1.ix.2017