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Hi, I'd like to Identify this Asilidae Diptera. I guess it belongs to the leptogastrinae subfamily. (2 Tg five times larger than thick. ) but I can't reach further levels of identification.

Picture was taken in Buenos Aires Province, Argentina. Specifically at the Ribera Norte natural reserve, in San Isidro.
-34.467748 S/ -58.494832 W

I really appreciate any help with this ID?
regards
Diego Rosa

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I do agree on Leptogastrinae[mail] but I can't give you a species. I have no experience with neotropical species.

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Thanks for confirming the Subfamily Reinoud.
regards
Diego Rosa