Creepy-crawly is a term used to describe a variety of small, often creepy-looking creatures. The crossword solutions for this term include EERIE (5 letters), INSECT (6 letters), BUG (3 letters), SPIDER (6 letters), and LARVA (5 letters). EERIE is an adjective used to describe something that is strange or frightening. An INSECT is a small invertebrate animal with six legs and a hard outer shell. A BUG is a type of INSECT, usually referring to one that is small and has wings. Spiders are eight-legged arachnids that have two body segments and often spin webs. LARVA is the name for the immature form of many insects, such as butterflies and moths.