“…It has been observed only in a few urban sites, but nothing is known of its natural distribution. Previous works on R. lucifugus from Italy have examined biology (Grassi and Sandias, 1893;Jucci, 1920Jucci, , 1921Jucci, , 1924Jucci, , 1936Ghidini, 1956;Springhetti, 1966), behavior (Springhetti and Amorelli, 1982), morphology (Lozzia, 1990), genetics (Clément, 1981;Marini and Mantovani, 2002;Luchetti et al, 2004) and chromosome structure (Fontana, 1980). However, until now, no attempt has been made to study the relationship between these different factors.…”