frass pattern

mine

Narrow, remarkably long, corridor. The inital part is rather strongly branched. The mine is upper-surface, rarley partly lower-surface. Frass variable: isolated grains, reddish-brown pearl chains, sometimes also there is a central green band. Pupation mostly outside the mine; when not, there is a slit alreadly made in the epidermis in front of the puparium to serve as an exit for the fly (Hering, 1924a, 1957a). Exit slit (always?) in lower epidermis.

hostplants

Asteraceae, monophagous

Doronicum austriacum, grandiflorum, orientale, pardalianches.

phenology

Larvae in June-July (Hering, 1957a); however, the vacated mines found in the Netherlands dated already from late May.

BENELUX

BE not recorded (Fauna Europaea, 2008).

NE recorded (Ellis, Amstelveen; Leo Blommers, Rhenen, beide 2008).

LUX not recorded (Fauna Europaea, 2008).

distribution within Europe

Germany, Poland, Spain, Romania, Bulgaria (Fauna Europaea, 2008); also Slovenia (Maček, 1999a).

larva

Rear spiraculum with c. 28 papillae (Starý, 1930a).

notes

Doronicum is a popular ornamental that easily runs wild, therefore it is worthwhile to keep an eye on this agromyzid.

references

Beiger (1978a, 1979a), Buhr (1941b), Hering (1924a, 1926b, 1957a), Starý (1930a), Maček (1999a), Seidel (1957a), von Tschirnhaus (1999a).

25/11/2011