膜翅類昆蟲的幼蟲
Jointworm \Joint"worm`\, n. (Zo["o]l.) The larva of a small, hymenopterous fly ({Eurytoma hordei}), which is found in gall-like swellings on the stalks of wheat, usually at or just above the first joint. In some parts of America it does great damage to the crop.
jointworm n : larva of chalcid flies injurious to the straw of wheat and other grains [syn: {strawworm}]