Leucospis affinis

L. affinis is a yellow and black wasp about 9-10mm in length. These wasps are recognizable by the large ovipositor curled over their back, their longitudinally folded wings, and by their swollen hind legs. They are easily mistaken for larger wasps, and this is intentional on their part. They are mimics of vespid wasps, such as yellow jackets.