WASHINGTON, Aug. 27 — Senator Larry E. Craig, Republican of Idaho, pleaded guilty to a disorderly conduct charge earlier this month after his arrest in June by an undercover police officer in a men’s bathroom at the Minneapolis-St. Paul International Airport.

A second charge of interference with privacy against the 62-year-old senator was dismissed. Mr. Craig was fined more than $500 at the Aug. 8 proceedings and was placed on unsupervised probation for one year. His 10-day jail sentence was suspended, according to a copy of a court document in the case.

According to a police report obtained by Roll Call, the Capitol Hill newspaper that disclosed the episode and guilty plea today, a plainclothes police officer investigating complaints of sexual activity in the bathroom arrested the senator on June 11 after what the officer described as sexual advances made by Mr. Craig from an adjoining stall.

Roll Call reported that the officer said Mr. Craig tapped his foot as a signal to engage in lewd conduct, brushed his foot against the investigator’s and waved his hand under the stall divider several times before the officer showed him his badge. After his arrest, the senator denied any sexual intent and in a statement issued this afternoon he attributed the matter to a misunderstanding.

Man, the G.O.P. sure is full of boner-hungry old guys.