Mid 19th century. From scientific Latin idalia, †Idalia specific name (in Papilio Idalia (D. DruryIllustr. Nat. Hist. I. (Index), plural XIII), apparently a specific use of the feminine of classical Latin Īdalius.
Definition of Idalia in US English:
Idalia
nounɪˈdeɪlɪə
Entomology rare
The regal fritillary, Speyeria idalia.
Origin
Mid 19th century. From scientific Latin idalia, † Idalia specific name (in Papilio Idalia (D. Drury Illustr. Nat. Hist I. (Index), plural XIII), apparently a specific use of the feminine of classical Latin Īdalius.