SEX: (male)
The sexual dimorphism in this subfamily is very subtle. Finding the gender in this genus and many related wasp genera may be accomplished with a clear image of the antennae segments or flagellomeres, the abdominal segments and the tarsi of the forelegs.
flagellomeres - male = 11, female = 10
tergites and sternites - male = 7, female = 6
tarsal comb spines on the front forelegs = females only
Here are more things that may help you when sexing your images:
Males do not hunt larvae and they can be found feeding on flowers. They do not dig burrows.
Males are generally going to be about 75% to 95% as long, in overall body length.
Males abdomens are thinner or about 60% as wide and they have more end segments. The last two are short and about the same length.
Males and females might be found sleeping in mixed congregations of both sexes.