the colours, especially the darker dorsal area of the metasoma, makes me suspect it's Trichrysiscyanea, the variation in size is very large in this species
... are no many chrysidini species with all blue-green colour on the body (Trichrysiscyanea, Spinolia unicolor, Chrysis fasciata, indigotea & C. iris). 2 : Spinolia unicolor ...
... C. fasciata, C. varidens, C. scutellaris, C. analis, C. angustula, Trichrysiscyanea, Chrysura simplex, C. radians, Hedychrum nobile, H. gerstaeckeri, H. rutilans, Hedychridium ...