Wyo. Stat. § 6-2-317

(a) Except under circumstance constituting sexual abuse of
a minor in the first, second or third degree as defined by W.S.
6-2-314 through 6-2-316, an actor commits the crime of sexual
abuse of a minor in the fourth degree if:

          (i) Being less than sixteen (16) years of age, the
actor engages in sexual contact with a victim who is less than
thirteen (13) years of age, and the victim is at least three (3)
years younger than the actor; or

          (ii) Being twenty (20) years of age or older, the
actor engages in sexual contact with a victim who is either
sixteen (16) or seventeen (17) years of age, and the victim is
at least four (4) years younger than the actor, and the actor
occupies a position of authority in relation to the victim.

     (b) A person convicted under subsection (a) of this
section is subject to imprisonment for not more than five (5)
years.

     (c) A person charged with violating the provisions of
paragraph (a)(i) of this section shall be subject to the
original jurisdiction of the juvenile court, except the matter
may be transferred to the district court having jurisdiction of
the offense as provided in W.S. 14-6-237.