前气门

  • 网络Front valve;anterior spiracle
前气门前气门
  1. 幼虫前气门色素管部长宽比,由2龄初期最大值,随时间延长呈现持续性下降的趋势,一直持续到3龄末。

    The ratio of length to width of anterior spiracle chamber were the maximum at the time of 2nd instars , which decreased the continuously until the end of the 3rd instars .