Black locust gall midge

Obolodiplosis robiniae

Foto: Gyorgy Csoka, Hungarian Forest Research Institute

NATIVE RANGE: North America

FIRST FINDING IN SLOVENIA: 2004

PATHWAYS: transported with tree saplings

POSSIBLE TO FIND: May-October

FLIGHT SEASON OF ADULTS: May-October

HABITAT: Forests, farmland, urban environments where Black locust trees are present.

STATUS IN SLOVENIA: Widespread everywhere where Black locust trees occur.

SIMILAR SPECIES: Several other midge species can not be distinguished with bare eyes, but the shape of the galls is characteristic.

Source: Terenski priročnik za prepoznavanje tujerodnih vrst v gozdovih (Fieldguide for the identification of alien species in forests)