Phalonidia affinitana (Douglas, 1846)
large saltmarsh conch
on sea aster
parasite
Oviposition on a flower head. The young larva for a short time lives within the head, then descends as a borer in the stem, sometimes as far as into the root.
host plants
Asteraceae, monophagous
Tripolium pannonicum subsp. tripolium (“Aster tripolium”).
distribution within Europe
larva
Body whitish, shortly before pupation somewhat reddish; head brown; see Swatschek.
pupa
See Patočka & Turčáni.
synonyms
Conchylis affinitana.
references
Bradley, Tremewan & Smith (1973a), Disqué (1905a), Gerstberger (2003a), Hancock & Bland (2015a), Hering (1928a), Jansen & Asselbergs (1993a), Kasy (1959a), Patočka & Turčáni (2005a), Rickert (2010a, 2011a), Sønderup (1949a), Swatschek (1958a), Szőcs (1977a), Trematerra, Sciarretta & Parenzan (1997a), Wegner (2010a).