Definitions

1. noun

The larva of a sawfly, especially those of the genera Cimbex and Tenthredo.

“A horntail larva was discovered in the garden, causing significant damage to the plants.”

2. noun

A type of stinging insect, especially the larva of a sawfly, that is typically long and narrow and has a distinctive horn-like protrusion.

“The horntail’s painful sting made it a feared insect in the forest.”