Author contributions
Shu-Jun Wei conceived and designed the study; Jin-Cui Chen and Ya-Jun Gong conducted the collection and rearing of the insect; Li-Jun Cao conducted the molecular works; Li-Jun Cao, Wei Song, Lei-Yue, Shao-Kun Guo and Shu-Jun Wei analyzed the data; Li-Jun Cao, Shu-Jun Wei and Ary Hoffmann discussed the results and wrote the manuscript.