pygidial gland 臀腺

pygidial margin [昆] 臀板侧缘

pygidial area [昆] 臀板区

pygidial setae [昆] 臀板毛

pygidial incision [昆] 臀板切迹

pygidial plate 尾板

pygidial fringe 臀板䍁

pygidial glands [昆] 臀腺