Biology:Halmus chalybeus

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Short description: Species of beetle

Halmus chalybeus
On an oak leaf
Scientific classification edit
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Infraorder: Cucujiformia
Family: Coccinellidae
Genus: Halmus
Species:
H. chalybeus
Binomial name
Halmus chalybeus
(Boisduval, 1835) [1]
Synonyms
  • Coccinella chalybea Boisduval, 1835

Halmus chalybeus, commonly known as the steelblue ladybird, is a species of ladybird in the beetle family Coccinellidae and the genus Halmus that is native to Australia.[2] Adult and larval steelblue ladybirds eat a variety of small insects, including but not limited to scale insects, psyllids, whitefly and free living gall mites (Eriophyoidea).[2]

Appearance

Halmus chalybeus has a rounded appearance with an iridescent blue/green colouration. It is a predator of other insects. It was introduced to New Zealand from Australia in 1899 and 1905 to control black scale and blue gum scale (see scale insect) on citrus trees,[3] where it is now common in northern regions. It has also been recorded eating San Jose scale. They are about 3–4 mm long.[3]

Eating the egg of a monarch butterfly

See also

References

Further reading

  • Flynn, Alan Richard. 1995. "Aspects of the biology of the steel blue ladybird Halmus chalybeus (Boisduval) (Coleoptera : Coccinellida)". Thesis (MSc–Zoology (Biological Sciences)) University of Auckland. 105 leaves with illustrations.
  • Lo, P. L. (December 2000) Species and abundance of ladybirds (Coleoptera: Coccinellidae) on citrus orchards in Northland, New Zealand, and a comparison of visual and manual methods of assessment. New Zealand Entomologist 23: 61–65

Wikidata ☰ Q2346637 entry