Abstract: 【Objective】The effects of photoperiod and temperature on the post-diapause development of Chrysoperla sinica adults and the relationship between diapause development and diapause intensity, diapause terminate, and post-diapuse development were studied. 【Method】 The pre-ovipositon, oviposition period, fecundity and longevity of overwintering adults of Ch. sinica were determined in November, January and March under three constant temperatures (18, 22, 28℃) and three different photoperiods (15D﹕9L, 13.5D﹕10.5L, 12L﹕12D). 【Result】Temperature had significant effects on pre-oviposition period (P＜0.001), oviposition period (P＜0.001) and longevity of female adults (P＜0.001) that shortened with the temperature increases. The fecundity had significant differences at different temperatures in November (P＜0.001) and the highest reproductivity was at 22℃ and the lowest at 18℃. However, no significant differences were found among temperatures in January (P=0.604) and March (P=0.745). Overwintering periods had distinct effects on the pre-oviposition period (P＜0.001), fecundity (P＞0.05) except oviposition periods (P＞0.05) and longevity of female adults (P＞0.05). The pre-oviposition periods and longevity of the adults became shorter with the overwintering time extending. The highest fecundity at 18℃ and 28℃ was in January, and the lowest in November, but at 22℃, the highest and lowest fecundity were in November and March, respectively. The photoperiods had no significant effects on pre-oviposition periods (P=0.240), oviposition periods (P=0.234) and female longevity (P=0.155) in the diapause termination process except fecundity (P＜0.001). The reduced light times could decrease significantly the fecundity of the adults in November (P=0.008) and March (P＜0.001), but no significant effects on the adults in January (P=0.735). Interactive analysis showed that temperatures and overwintering periods had significant effects on the pre-oviposition period (P=0.016) and fecundity (P＜0.001), but no significant effects on oviposition periods (P=0.321) and female longevity (P=0.583). Photoperiod and overwintering periods had no significant interactive effects on the pre-oviposition period (P=0.664), oviposition periods (P=0.074) and female longevity (P=0.052), but significant effects on fecundity (P=0.031).【Conclusion】Temperature has significant effects on the post-diapause biology of Ch. sinica adults. The overvintering periods have significant effects on pre-oviposition period and fecundity, this indicates that the green lacewing has different diapause intensities in different months and would influence the fecundity because of the energy consumption during the process of diapause termination. The photoperiod has no significant effects on the pre-oviposition period, oviposition periods and female longevity, but significant effects on fecundity, the results reflect that light quality can affect egg production. Temperature and overvintering periods have more significant effects on the post-diapause development of Ch. sinica than the photoperiod.

Key words: Chrysoperla sinica (Tjeder) , temperature , photoperiod , pre-oviposition period , oviposition period , fecundity , longevity of overwintering female adults