- cynthia moth
- nounlarge Asiatic moth introduced into the United States; larvae feed on the ailanthus
* * *noun: a large Asiatic silkworm moth (Samia cynthia or S. walkeri) introduced into No. America in the 19th century and having a larva that feeds chiefly on the ailanthus
* * *Cynthia moth,a large, brown moth with white markings that feeds on the ailanthus, one of the few insects known to do this.
Useful english dictionary. 2012.