Psilopa leucostoma (Meigen, 1830)

Diptera, Ephydridae

mine

The mine starts near a tiny and fragile egg shell at the leaf lower surface; it quickly falls off. The first section is a narrow, usually lower-surface corridor of a few cm in length with rather irregular sides and side branches. This corrior rather abruptly widens into a blotch of 0.5-1 cm. The blotch has full depth spots here and there. Old mines are blackish. Often several mines in a leaf (Krämer, 1962a).

hostplants

Amaranthaceae, oligophagous

Beta; Chenopodium

phenology

Larvae in May-June (Krämer, 1962a).

BENELUX

BE recorded (Gosseries, 1991d).

NE recorded (de Meijere, 1939a).

LUX not recorded (Fauna Europaea, 2008).

distribution within Europe

Entire Europe, with possible exception of Ireland and the Baljan Peninsula (Fauna Europaea, 2008).

larva

Front spiracula end in three branches, with 3-4, 1, and 1-2 papillae, respectively (Hering, 1962a).

notes

Herbarium material collected in IJzevoorde by Jaap Zwier on Beta possibly belongs to this species. In two out of the three mines the remnants of a flimsy egg shell were discernable, but these, like the initial corridor and the rest of the mine, were upper-surface. The frass was scant, in coarse grains; the mines had been vacated.

references

Beuk & Zatwarnicki (2002a), Gosseries (1991d), Hering (1957a, 1962a), Krämer (1962a), de Meijere (1939a), Skuhravy ao (1967a),

28.x.2008

mod 28.vi.2017