from
The Collaborative International Dictionary of English v.0.48
armyworm \armyworm\, Army worm \Ar"my worm`\ (Zool.)
(a) A lepidopterous insect, which in the larval state often
travels in great multitudes from field to field,
destroying grass, grain, and other crops. The common army
worm of the northern United States is the noctuid moth
({Pseudaletia unipuncta}, formerly {Leucania unipuncta}.
The name is often applied to other related species, as
the cotton worm.
(b) The larva of a small two-winged fly ({Sciara}), which
marches in large companies, in regular order. See {Cotton
worm}, under {Cotton}.
Syn: army worm
[1913 Webster]
2. the larva of the fungus gnat; -- they march in large
companies in regular order.
[WordNet 1.5] Arna
from
The Collaborative International Dictionary of English v.0.48
Caterpillar \Cat"er*pil`lar\, n. [OE. catyrpel, corrupted fr.
OF. chatepelouse, or cate pelue, fr. chate, F. chatte,
she-cat, fem. of chat, L. catus + L. pilosus hairy, or F.
pelu hairy, fr. L. pilus hair. See {Cat}, and {Pile} hair.]
1. (Zool.) The larval state of a butterfly or any
lepidopterous insect; sometimes, but less commonly, the
larval state of other insects, as the sawflies, which are
also called false caterpillars. The true caterpillars have
three pairs of true legs, and several pairs of abdominal
fleshy legs (prolegs) armed with hooks. Some are hairy,
others naked. They usually feed on leaves, fruit, and
succulent vegetables, being often very destructive, Many
of them are popularly called worms, as the {cutworm},
{cankerworm}, {army worm}, {cotton worm}, {silkworm}.
[1913 Webster]
2. (Bot.) A plant of the genus {Scorpiurus}, with pods
resembling caterpillars.
[1913 Webster]
{Caterpillar catcher}, or {Caterpillar eater} (Zool.), a bird
belonging to the family of Shrikes, which feeds on
caterpillars. The name is also given to several other
birds.
{Caterpillar hunter} (Zool.), any species of beetles of the
genus {Callosoma} and other allied genera of the family
{Carabid[ae]} which feed habitually upon caterpillars.
[1913 Webster]