Remarks on Hymenoptera on urban green roofs in Belgium Author Verheyde, Fons Author Jacobs, JEffrEY Author Dekoninck, WOUTEr Author Achterberg, Kees Van Author Rond, JErOEn Author Blanck, Tim De Author Schoonvaere, KarEL Author Nieuwenhuijsen, Hans Author Ketelaere, Augustijn De Author Minnebo, BarT Author Ferrer-Suay, Mar text Belgian Journal of Entomology 2023 2023-03-03 140 1 37 journal article 10.5281/zenodo.10981934 2295-0214 10981934 EB983FDD-CAE9-48F7-AA63-5F49CC9B6CD1 Gasteruption minutum (Tournier, 1877) BELGIUM : 1 ♂ ; N51.251° E4.418° ; vii/2020 ; J. Jacobs leg.; coll. FV; pan trap (yellow); F. Verheyde & A. De Ketelaere det. Remarks: Based on the specimens in the collection of RBINS , this species is rather uncommon in Belgium . It appears to have a more southern distribution ( VAN ACHTERBERG, 2013 ) and is thus possibly thermophilic. Typical for this species are the lateral protuberances just below the eyes (frontal view).