issued by the Italian Embassy in the country of residence

See:
Non-European citizens residing abroad must produce the request for equipollence to the competent diplomatic or consular Italian authority by 31st August.

Documentation to produce

1. Request of acknowledgement of the foreign academic qualification, addressed to the University of Florence, stating the academic qualification conferred by the University of Florence for which the petitioner ask the equipollence (see attached module);

2. the original of upper high school qualification (or qualification to access to the University), translated and authenticated by the competent Italian diplomatic delegation and with the "certificate of equivalence of qualification" (dichiarazione di valore);

3. the original of the foreign academic qualification, translated and authenticated by the competent Italian diplomatic delegation and with the "certificate of equivalence of qualification" (dichiarazione di valore);

4. the original of the degree certificate, stating the exams taken and the title of the thesis, translated and authenticated by the competent Italian diplomatic delegations and with the "certificate of equivalence of qualification" (dichiarazione di valore);
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in loco refers to the issuance of the document by the "local" Italian Embassy

P.S. I know: my wife was issued one such certificate...