The morphology and histology of the male reproductive system in Dolycoris baccarum Linnaeus 1758 (Heteroptera: Pentatomidae)-Light and scanning electron micoscope studies

► Ultrastructure of testes Dolycoris baccarum was described. ► Three different development zones of testicular follicles were described by light and scanning electron microscope. ► Information obtained from the male reproductive system can be used for morphologic and systematic studies.