[straw-wurm] 
[kad-is-wurm] | the aquatic larva of a caddisfly, having an armored head and a pair of abdominal hooks, and typically living in a case built from sand or plant debris. |
[joint-wurm] | the larva of any of several chalcid flies of the family Eurytomidae, esp. of the genus Harmolita, that feeds within the stems of grasses, often causing a gall near the first joint. |
| straw·worm (strô'wûrm') n. The destructive larva of a wasp (Harmolita grandis), of western North America, that infests stalks of grain. |
