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Hello nadia,

The family is Sphaeroceridae, as the first tarsal segment of the hind leg is short and wide (seen in the second photo). The subfamily is Limosininae as indicated by the wing venation. The second specimen is of the genus Coproica, as indicated by the setulose scutellum.
Furtehr ID is not possible for me without examining material. Although your excellent photographs might make it possible for someone else.

Regards,

Ectemnius