Abstract: 【Aim】 This study aims to investigate the effects of parental body color and environmental factors on the body color of F1 generation adults and the changes of the fecundity, mating rate and longevity of Saccharosydne procerus adults with different body colors in different environments. 【Methods】 The nymphs from S. procerus parents with different body colors (melanic and non-malanic) were subjected to treatments of different ambient temperature (30℃ and 22℃) and photoperiod (20L∶4D and 16L∶8D) combinations in the laboratory, and the melanism rate of adults was observed. The adults with different body colors were also subjected to treatments of these same temperature and photoperiod combinations, the changes in the body color, longevity, fecundity and mating rate of adults were recorded, and the contribution rates of different factors on these indicators were analyzed. 【Results】 The results showed that the variation range of melanism rate of S. procerus adults was 18.6%-60.8% when the nymphs from the parents with different body colors were subjected to treatments of the above temperature and photoperiod combinations in the laboratory. High temperature, long photophase in the nymphal stage and melanic parents significantly increased the proportion of melanic individuals in the offspring. The longevity of non-melanic individuals was significantly longer than that of melanic individuals under low temperature or short photophase conditions in the adult stage, while it was opposite under high temperature and long photophase conditions. The mating rate and fecundity of melanic individuals decreased with the decrease of temperature and photophase, while the mating rate and fecundity of non-melanogenic individuals were mainly affected by photoperiod. The statistical analysis showed that temperature had the highest contribution rate to the mating rate of S. procerus (39.1%), photoperiod had the highest contribution rate to the change of body color and fecundity of S. procerus (42.5% and 47.4%, respectively), and the interaction between body color and temperature had the highest contribution rate to the longevity of male and female adults (50.3% and 60.6%, respectively). 【Conclusion】 This study demonstrates that photoperiod in the nymphal stage has the most significant influence on the body color of S. procerus adults, changing their biological characteristics in certain extent and improving their adaptability to the environment.

Key words: Saccharosydne procerus')">Saccharosydne procerus, melanism, body color, temperature, photoperiod, biological characteristics