He then passed into the public school system where, encouraged by Macedonio Melloni his physics and chemistry teacher in the preparatory course for the University of Parma, he did not attend the law lessons though his family had insisted.
The Reader of Botany to the Athenaeum Parmesan was Professori Giorgio Jan, assistant at the Imperial Museum in Vienna and holder of the chair of zoology in Parma University.
Following the Ducal restoration after three years of provisional government, not only was the chair of Zoology a distant dream, but the legal faculty had been removed to Piacenza in order to diminish the number of politically active students.
Rondani studied the insects of the exotic products describing two of the beetles he found Cis jalapa from chillies and Brucus dolici from Santa Domingo coffee.
Further publications rapidly followed on species new to Italy, new to science, plans of classifications, taxonomic arguments, and initial work on his masterwork, the Prodomo, a treatise on Diptera.
Following the catastrophic defeat of the Piedmontese at the Battle of Novara, Rondani retired back to Guardasone, and for some years, as Italians became increasingly involved in colonial ambition, worked on exotic Diptera.
Rondani became a popular writer for several newspapers and had various assignments from government and from the Camera d'Agricoltura e Commercio [Agriculture and Commerce Chamber] and the Giunta Superiore di Statistica [Advanced Committee of Statistics] for which he was awarded a medal.
He maintained his interest in politics to the last, being an influential member of the Consigli della Provincia e del Comune, unhesitatingly supporting liberal and progressive ideals.