The fourth division of an insect 's leg , between the femur and the tarsi .

胫节昆虫腿部的第四节，位于胫节和跗节之间。

This accumulated on the tarsi , immobilizing a few larvae , and causing others to fall off the plants .

这些物质积累在跗节上，将一些幼虫粘住，并使另外一些幼虫从植株上摔下来。