705.1  Solicitation.
  Any person who commands, entreats, or otherwise attempts to persuade another to commit a particular felony or aggravated misdemeanor, with the intent that such act be done and under circumstances which corroborates that intent by clear and convincing evidence, solicits such other to commit that felony or aggravated misdemeanor. One who solicits another to commit a felony of any class commits a class “D” felony. One who solicits another to commit an aggravated misdemeanor commits an aggravated misdemeanor.
[C79, 81, §705.1]

Solicitation to commit murder, see §707.3A