Synacra paupera Macek, 1995

Verheyde, Fons, Jacobs, JEffrEY, Dekoninck, WOUTEr, Achterberg, Kees Van, Rond, JErOEn, Blanck, Tim De, Schoonvaere, KarEL, Nieuwenhuijsen, Hans, Ketelaere, Augustijn De, Minnebo, BarT & Ferrer-Suay, Mar, 2023, Remarks on Hymenoptera on urban green roofs in Belgium, Belgian Journal of Entomology 140, pp. 1-37 : 20

Synacra paupera Macek, 1995 - Belg. sp. nov.

BELGIUM: • 1 ♀; N51.184° E4.419°; viii/2020; J. Jacobs leg.; coll. FV; pitfall trap; F. Verheyde det.

Remarks:

This small genus of diapriid wasps can be recognized by the number of antennal segments in females (12) and the melanic to yellow body ( KOZLOV, 1988). Determination to species used to be difficult but recently a new key appeared. S. paupera is one of the easier species to recognize by the presence of fully developed notauli and the clavate female antennae apically (A8-12 distinctly compressed) ( CHEMYREVA & KOLYADA, 2019).

Interestingly, this species is a known parasitoid of the sciarid fly Bradysia impatiens (Johannsen, 1912) (= Bradysia paupera Tuomikoski, 1960 ); which is a known pest species in greenhouses ( NOTTON, 1997).