This is an Accepted Article that has been peer-reviewed and approved for publication in the Insect Science but has yet to undergo copy-editing and proof correction. Please cite this article as doi: 10.1111/1744-7917.12834. This article is protected by copyright. All rights reserved. Author running head: T.W. Cai et al. Title running head: Wolbachia enhances expression of NlCYP4CE1 Correspondence: Hu Wan, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China. Tel/fax: +86 27 8728 6968; email: huwan@mail.hzau.edu.cn ORIGINAL ARTICLE Wolbachia enhances expression of NlCYP4CE1 in Nilaparvata lugens in response to imidacloprid stress Tingwei Cai, Yunhua Zhang, Yu Liu, Xiaoqian Deng, Shun He, Jianhong Li and Hu Wan Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China