nymphal diapause若虫休眠
nymphal development若虫发育
nymphal secretion若虫分泌物
nymphal moult若虫脱皮
nymphal instar若虫龄虫;若虫龄
nymphal molt若虫脱皮
nymphal density若虫密度
larval nymphal幼虫的
nymphal stage若虫时期;幼虫阶段;蝗虫的若虫期