中文摘要：

黄脊竹蝗（Ceracris kiangsu）是我国南方地区重要的竹子害虫。为了深入理解黄脊竹蝗的趋尿行为，测定了黄脊竹蝗成虫对不同发酵天数入尿及NH4HCO3等溶液挥发物的EAG反应。结果表明，黄脊竹蝗成虫对人尿挥发物的EAG反应与发酵天数及性别密切相关，与新鲜人尿及发酵时间分别为7、15、45及60d的人尿相比，雌、雄成虫触角对发酵30d的人尿挥发物的EAG反应最强；另外，不同浓度的吲哚、NH4HCO3及尿素溶液也能激发黄脊竹蝗成虫明显的EAG反应，但反应强度均显著弱于对人尿挥发物的EAG反应强度（P〈0．05）。黄脊竹蝗对人尿挥发物的EAG反应与性别密切相关，雌虫对新鲜人尿及发酵15d的入尿挥发物的EAG反应显著强于雄虫，而对发酵30d的人尿挥发物、同一浓度的NH4HCO3及吲哚溶液的EAG反应强度均显著弱于雄虫。

英文摘要：

The yellow-spined bamboo locust, Ceracris kiangsu （Orthoptera： Oedipodidae） is an important bamboo pest in south China. To better understand the mechanism of the urine puddling behavior of C. kiangsu, we examined the EAG responses of C. kiangsu adults towards the vola- tiles of human urine fermented for different days and the solutions of ammonium bicarbonate and indole. The results showed that the EAG responses of C. kiangsu adults towards human urine vol- atiles were influenced significantly by the duration of human urine fermentation. Compared with fresh urine and human urine fermented for 7, 15, 30, 45 and 60 days, the volatiles emitted from human urine incubated for 30 days elicited the strongest EAG response in both female and male adults. In addition, the solutions of indole, ammonium bicarbonate and urine in different concen- trations could evoke strong EAG response in male and female adults respectively. The EAG re- sponse elicited by different chemical solutions were significantly weaker than that evoked by hu- man urine （P〈0.05）. The EAG responses towards the volatiles emitted from human urine and chemical solutions were affected by sex, and the human urine fermented for 0 and 15 days elici- ted stronger EAG responses in females than in males, while the EAG responses evoked by the hu- man urine and the solutions of ammonium bicarbonate and indole were respectively weaker in fe- males than in males.