Trioza abdominalis Flor, 1861

on Achillea

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. Univoltine; hibernation as imago on conifers.

hostplants

Asteraceae, ? monophagous

Achillea erba-rotta subsp. moschata, millefolium.

References in the somewhat older literature of Alchemilla vulgaris; Anthemis; Chrysanthemum are not repeated later on.

references

Buhr (1964b), Burckhardt (1983a, 2002a), Conci, Rapisarda & Tamanini (1996a), Hellrigl (2004a), Hodkinson (1989a), Hodkinson & White (1979a), Lauterer & Dorow (2010a), Malenkovský & Lauterer (2012a), Seljak Malenkovský & Lauterer (2008a), Ossiannilsson (1992a), Ouvrard, Burckhardt & Cocquempot (2015a), White & Hodkinson (1982a).

mod 10.iv.2018