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1 Agriphila aeneociliella (Eversmann) (Lepidoptera: Crambidae) was newly reported in China in 2010. Its larvae severely damage wheat in early spring and cause substantial economic losses in wheat crops. 2 The present study involves a detailed study of the demography of A. aeneociliella based on the age-stage, two-sex life table. The developmental threshold and the effective accumulated temperature have been calculated for each developmental stage. 3 Individuals were found to have either six or seven instars, with the percentage of seven-instar larvae increasing at higher temperatures. 4 The total pre-adult development time ranged from 119.67 days at 25 ∘ C to 147.26 days at 18 ∘ C. The highest pre-adult survival rate was 72.60% at 18 ∘ C, whereas the highest mean fecundity was 495.53 eggs per female at 25 ∘ C. The highest growth rates (r = 0.0368 day −1 , = 1.0375 day −1 ) were observed at 23 ∘ C, whereas the shortest mean generation time (T = 127.67 days) occurred at 25 ∘ C. No significant differences were found in population parameters between cohorts raised at 23 and 25 ∘ C. 5 The present study provides a basis for understanding the population ecology of A. aeneociliella and can be instrumental in constructing future integrated pest management programmes against this widespread pest.

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