anterior spiracle

At 20℃to 28℃,the average optical densities of anterior spiracle chamber of each larvae group showed an increasing trend that continued to the end of 3rd instars.
幼虫前气门色素管部平均光密度,随时间延长20℃至28℃各组幼虫呈现持续性增加的趋势,并一直持续到3龄末。

医药科学