1) Larva 
• (n.) One of the larvae of various species of snapping beetles, or elaters; -- so called from their slenderness and the uncommon hardness of the integument. Wireworms are sometimes very destructive to the roots of plants. Called also wire grub. • (n.) A galleyworm.
(from the article `click beetle`) Click beetle larvae have a hard exoskeleton and are known as wireworms because of their long, slender, cylindrical shape. They can be destructive ... The eggs of click beetles are laid in the soil, and the larvae, called wireworms, live underground for some years, feeding on the roots and stems of ... ...any of certain millipede (q.v.) species.
Wire'worm` noun (Zoology) (a) One of the larvæ of various species of snapping beetles, or elaters; -- so called from their slenderness and the uncommon hardness of the integument. Wireworms are sometimes very destructive to the roots of plants. Called also wire grub . (b) ...
[n] - wormlike larva of various elaterid beetles
Click beetle - a family of beetles known for their ability to fling themselves into the air. Their larvae are called wireworms.
noun wormlike larva of various elaterid beetles; feeds on roots of many crop plants
Larva of some species of click beetle. Wireworms are considered agricultural pests as they attack the seeds of many crops