Skeletomusculature of Ceraphronoidea metasoma (CLSM) A dorsal view of metasoma of Conostigmus sp. showing termination of dorsal vessel into caudal chamber and tergal muscles B dorsal view of metasoma of Ceraphron sp. showing tergal muscles and termination of dorsal vessel into abdominal pulsatory organ anterior to Waterston’s evaporatorium. Ditr = dorsal intertergal retractor muscles; ite = intertergal extensor muscles; litr = lateral intertergal retractor muscles; os = ostia; cc = caudal chamber; dv = dorsal vessel; apo = abdominal pulsatory organ; ev = evaporatorium.