Chrysis.net Forum

Hi!
Looking for the species ID of this specimen, it was found in the "Reserva Ecológica Costanera Sur", Buenos Aires, Argentina, yesterday (May 20, 2016)
Could you help me please?
Thanks!
Eduardo

I think this is not Chrysididae. Maybe Lasioglossum (Halictidae)

Thanks Bogdan! I will search that family, any other help will be appreciated...