Ladybird Beetles eat aphids, mites, scales, and other pest style bugs. A pest bug is one that eats plants, particularly plants that humans grow for food or show. This is why Lady Bugs are considered "good bugs". A few thousand Ladybird Beetles can control the aphid population on an acre of land.
Typical insects, Lady Bugs have a head, thorax, abdomen and six legs. The head is usually black, or black with white spots. The Lady Bug has a pair of eyes and a pair of antennae. The head is attached to the thorax which is attached to the dome shaped abdomen. This dome consists of hard wings in red, orange or yellow with an assorted number of black dots. Under this shell like dome are another set of wings that are used for flight. The Lady Beetle has short legs, much shorter than most other beetles.
Some Ladybird Beetle Facts
- lifespan 2-3 years
- able to retract their head into their thorax (visualize a turtle)
- secrete a foul tasking fluid from their joints to discourage predators
- adults range in size from 1/8th to 3/8th inches long
- some species eat plants
Most Lady Bugs lay their eggs in clusters near aphid populations. The larvae emerge and eat the aphids. In the typical larvae's 3- 6 weeks they eat up to 5,000 aphids. The larvae are black and bristly in appearance and are usually found clinging to leaves with a belly full of aphids. Ladybird Beetles lay several batches of eggs per year.
Why do you sometimes find Lady Bugs in your house? These insects hibernate in groups, generally in places where aphids live. Therefore, Lady Beetles hibernate in plant brush, under rocks and in buildings. If they are in your house, this may mean you have aphids in your house. Or you did, before the Lady Bugs came in and ate them.
Thank you http://animals.nationalgeographic.com/animals/bugs/ladybug/?source=A-to-Z for sharing the lady bug picture.