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SUMMARY
Male meiosis and karyotypes of 5 species of Indian Heteroptera (Megacopta cribraria of Plataspidae and Coridius janus, Andrallus spinidens, Nezara viridula and Gynenica affinis of Pentatomidae) are analysed. Diploid number of 2 n = 12, XY in M. cribraria, 2n = 14, XY in C. j anus, A. spinidens and N. viridula and 2n = 16, XY in G. affinis are recorded. During karyotypic evolution, mechanisms like minor interchromosomal changes in Plataspidae and fragmentation and interchromosomal changes in Pentatomidae are suggested to have operated.
