Ladybug Information
Coccinellidae is a family of beetles, known variously as ladybirds (UK, Ireland, Australia, Pakistan, South Africa), ladybugs (North America), or lady beetles(preferred by some scientists). Lesser-used names include ladyclock, lady cow, and lady fly.[1]
They are small insects, ranging from 1 mm to 10 mm (0.04 to 0.4 inches), and are commonly yellow, orange, or scarlet with small black spots on their wing covers, with black legs, head and antennae. A very large number of species are mostly or entirely black, grey, or brown and may be difficult for non-entomologists to recognize as coccinellids (and, conversely, there are many small beetles that are easily mistaken as such, like tortoise beetles).
Coccinellids are found worldwide, with over 5,000 species described,[2] more than 450 native to North America alone.
A common myth is that the number of spots on its back indicates its age.[4]
Source : http://en.wikipedia.org/wiki/Ladybug