Abstract: To understand effects of tea volatiles on foraging behavior of jumping spiders, Evarcha albaria, the technology of solid phase micro-extraction-gas chromatography-mass spectrometry (SPME- GC-MS) was used to first study effect of leaf-feeding of its preys, false-eye leafhoppers (Empoasca vitis), on release of volatiles from affected tea leaves and at the same time observation was made of foraging behavior of jumping spiders beside different odor sources (or in foraging patches) on a spider behavior observation platform, It was found that intact tea leaves released only a minute amount of volatiles, while Empoasca vitis-bitten tea leaves gave out 14 kinds of volatiles. Once placed near different odor sources, control (intact leaf) or treatment (bitten leaf)  jumping spiders, regardless of male or female, did not show much preference to control or treatment in their first choice or much difference in frequency of their moving into foraging patches affected by different odor sources. However, they stayed significantly longer in the patch of E. vitis-bitten tea leaves. The findings suggested that E. vitis biting of tea leaves induced release of volatiles from the leaves and the change in kind and content of the volatiles, which led to the difference in duration of E. albaria staying in different foraging patches.

Key words: Evarcha albaria, Empoasca vitis, tea volatile, residence time, foraging patch, solid phase, microextraction