I was informed about an article, "New Menander mosaics from Antioch" in American Journal of Archaeology, 4 October 2012, Vol. 116. This enabled me to identify pictures.
This is from Menander’s Theophoroumene. The person to the left is identified as the slave Parmenon. To his right first a small piper. The article states that, as in mosaics of this theme Kleinias and the small piper boy are constants, the piper boy must have “played some meaningful role in the action”. In the centre “presumably Kleinias” holding a green tympanon. To his right a dancing maiden.