螵 螵 piao1
nest of eggs of mantis

strokes 17
radical
虫
虫
strokes after radical 11
海螵蛸 海螵蛸 hai3 piao1 xiao1
cuttlebone (used in TCM)

螵蛸 螵蛸 piao1 xiao1
egg case of a praying mantis (used in TCM); cuttlebone