Developmental temperature responses of Chrysoperla agilis (Neuroptera: Chrysopidae), a member of the European carnea cryptic species group

► We test the effect of constant temperatures on demographic parameters of Chrysoperla agilis. ► Optimum temperature for immature development ranged from 31.6 to 31.3 °C for females and males, respectively. ► C. agilis can develop and reproduce in the range of 15-32 °C. ► The optimum temperature for population increase was estimated at 28.8 °C.