Lyonetia pulverulentella Zeller, 1839

mine

About 10 eggs are deposited, one by one, in a length row on the upper side of the leaf. The first mine made by a larva is a small, brown, full depth blotch with black frass in 3-4 concentric spirals. Next several secondary mines are made: eventually rather large, irregular, full depth blotches without any frass: this is ejected through a number of crescent-shaped slits in the lower epidermis. Pupation external; in the way typical for Lyonetia the cocoon containing the pupa hangs free between a few “guy wires”.

The description above is based on the observations by Buszko (1987a) on Salix pentandra; probably there will be some differences with other willows with smaller leaves.

host plants

Salicaceae, monophagous

Salix arbuscula, x fragilis, lapponum, pentandra, phylicifolia, repens subsp. rosmarinifolia.

phenology

Larvae in July (Hering, 1957a).

distribution within Europe

Mountains of Europe (not in the Pyrenees).

pupa

Described by Patočka (2000a), Patočka & Turčáni (2005a).

synonyms

Lyonetia frigidariella Herrich-Schäffer, 1855.

references

Bengtsson & Johansson (2011a), Buszko (1981a, 1987a, 1992b), Hering (1957a), Klimesch (1957a), Landry ao (2013a), Laštůvka Z, Laštůvka A, Liška, Marek, Skyva & Vávra (1992a), Patočka (2000a), Patočka & Turčáni (2005a), Seidel (1926a), Svensson (2009a).

mod 31.xii.2018