Depressaria ultimella Stainton, 1849

fen flat-body

on Apiaceae

parasite

The larva bores in the stem, initially in the inflorescence, but gradually descending into older and thicker stems. Infected plants recognisable by withering stems. Pupation in the lower part of the stem, not infrequently below the water table.

host plants

Apiaceae, oligophagous

Helosciadium nodiflorum; Oenanthe aquatica, crocata; Sium latifolium.

phenology

Larvae in June-August.

distribution within Europe

(PESI, 2019).

larva

Head light brown; prothoracic plate yellowish; body, thoracic feet and anal plate greenish, no length lines; pinacula black with grey setae.

references

Emmet & Langmaid (2002b), Heckford (1982a), Huisman, Koster, van Nieukerken & Ulenberg (2004a).

mod 9.viii.2019