Gypsonoma oppressana (Treitschke, 1835)

poplar shoot

Gypsonoma oppressana: mine on Populus nigra var italica

Populus nigra var. italica, Hurdegaryp © George Sinnema

Gypsonoma oppressana "mine"

Populus alba, Belgium, prov. West Flanders, Ooigem-Wielsbeke © Steve Wullaert

Gypsonoma oppressana "mine"

in an old leaf, having lost most of its felt cover, it is obvious that no real mine has been made

Gypsonoma oppressana larva

larva

mine

The young larva makes a short, upper- or lower-surface corridor along the midrib, often continuing for short distance along a side vein. Then the mine continues into a lower-surface tube of silk, covered with much frass, from which the larva causes under-surface window feeding. In white poplars this occurs under the felt cover, causing a pseudo-mine.

hostplants

Salicaceae, monophagous

Populus alba. balsamifera, x canadensis, nigra; Salix myrsinifolia.

phenology

Mining larvae in September – November; after hibernation they feed on buds.

BENELUX

BE recorded (Phegea, 2009).

NE recorded (Kuchlein & de Vos, 1999a; Microlepidoptera.nl, 2009).

LUX not recorded (Fauna Europaea, 2009).

distribution within Europe

Europe, except Ireland and the Balkan Peninsula (Fauna Europaea, 2009).

larva

Body greyish white to light brown; pinacula brown, inconspicuous. Head, prothoracic and anal plates, and thoracic feet dark brown to black (Bradley ao, 1979a).

references

Bradley, Tremewan Smith (1979a), Buhr (1935b, 1964a), Emmet (1970b), Hering (1957a), Huber (1969a), Huisman, Koster, van Nieukerken & Ulenberg (2004a), Kuchlein & Donner (1993a), Kuchlein & de Vos (1999a), Robbins (1991a), Skala (1941a), Sønderup (1949a), Szőcs (1977a), Zoerner (1969a).

mod 5.viii.2019