Dictionary.net

• A small dipterous fly of the genus Oscinis, esp. O. vastator, injurious to grain in Europe, and O. Trifole, injurious to clover in America.

2010 - New Age Dictionary Database
By Oddity Software

• A small dipterous fly of the genus Oscinis, esp. O. vastator, injurious to grain in Europe, and O. Trifole, injurious to clover in America.

1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.