Abstract: In this paper, the life tables of laboratory Trichogramma ostriniae population reared on Corcyra cephalonica eggs at 26 ℃, 29 ℃, 32 ℃ and 35 ℃ were constructed, and the effects of high temperature on the development and reproduction of this population were analyzed. The results showed that high temperature (32 ℃～35 ℃) greatly affected the development of T. ostriniae. The egg-larva survival rate was 94.2% at 26 ℃ and 88.6% at 29 ℃, and decreased to 80.1% at 32 ℃ and 53.2% at 35 ℃. The pupa survival rate also descended with the raise of temperature. The egg load and the body-and egg sizes of newly emerged female wasps were negatively responded to temperature. 12 h-old adult female had an egg load of 37.9, which was decreased with the raise of temperature, and about 29.6, 21.6 and 13.7 mature eggs were found at 29 ℃, 32 ℃ and 35 ℃, respectively. All females could complete their normal copulation and oviposition at 26 ℃ and 29 ℃, but about 6.7% and 60% females could not reproduce at 32 ℃ and 35 ℃, respectively.

Key words: spatial distribution pattern., Quercus mongolica, secondary forest, dominant species, community structure