Ladybird_beetle Ladybird_beetle

Ladybird beetle - Definition and Overview

For other uses, see Ladybird (disambiguation).
Lady beetles
Asian multicolored lady beetle
Asian Lady Beetle
Scientific classification
Kingdom:Animalia
Phylum:Arthropoda
Class:Insecta
Order:Coleoptera
Suborder:Polyphaga
Infraorder:Cucujiformia
Superfamily:Cucujoidea
Family:Coccinellidae
Subfamilies

Chilocorinae
Coccidulinae
Coccinellinae
Epilachninae
Scymininae
Sticholotidinae
etc. see list of Coccinellidae genera

Ladybirds (Commonwealth English), also known as ladybugs (American English, Canadian English) or lady beetles (some scientists favor this) are a family, Coccinellidae ("little sphere"), of beetles. Ladybirds are found worldwide, with over 4,500 species described, more than 450 native to North America alone. Ladybirds are small insects, ranging from 1 mm to 10 mm (0.04 to 0.4 inches), and are usually yellow, orange, or red with small black spots on their carapace, and black legs, head and feelers. As the family name suggests, they are usually quite round in shape.

Ladybird on a leaf
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Ladybird on a leaf

Ladybirds are beneficial to organic gardeners because most species are insectivores, consuming aphids, fruit flies, thrips, and other tiny plant-sucking insects that damage crops. In fact, their name is derived from "Beetle of Our Lady", recognizing their role in saving crops from destruction. Today they are commercially available from a variety of suppliers.

Adult ladybirds are able to reflex-bleed from their leg joints. The blood is yellow, with a strong repellent smell, and is quite obvious when one handles a ladybird roughly.

The ladybird is immortalised in the children's nursery rhyme:

Ladybird, ladybird, fly away home
Your house is on fire and your children are gone
All except one, and that's Little Anne
For she has crept under the warming pan.

The ladybird is the symbol of the Dutch Foundation Against Senseless Violence. [1] (http://www.zinloosgeweld.nl/10.lng/profilesketch.asp)

P-14 lady beetle consuming an aphid
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P-14 lady beetle consuming an aphid

Notable species: (note, not all individuals show the number of spots suggested by their names)

  • Seven-spotted lady beetle (Coccinella septempunctata)
  • Two-spotted lady beetle (Adalia bipunctata)
  • Convergent lady beetle (Hippodamia convergens)
  • Spotted lady beetle (Coleomegilla maculata)
  • Twice-stabbed lady beetle (Chilocurus stigma)
  • Mexican bean beetle (Epilachna varivestis Mulsant)
  • Asian Lady Beetle (Harmonia axyridis)

For a complete list of genera, see list of Coccinellidae genera.

References

  • I. Hodek & A. Honek, Ecology of Coccinellidae (Dordrecht: Kluwer, 1996)

External links

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