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Buprestidae
Agrilinae (bottom row), Chrysochroinae (top row, left 3), and Buprestinae (others) from Genera Insectorum
Scientific classification
Kingdom:	Animalia
Phylum:	Euarthropoda
Class:	Insecta
Order:	Coleoptera
Superfamily:	Buprestoidea
Family:	Buprestidae Leach, 1815
Subfamilies
Agrilinae Buprestinae Chrysochroinae Galbellinae Julodinae †Parathyreinae Polycestinae (but see text)

Buprestidae is a family of beetles known as jewel beetles or metallic wood-boring beetles because of their glossy iridescent colors. Larvae of this family are known as flatheaded borers. The family is among the largest of the beetles, with some 15,500 species known in 775 genera. In addition, almost 100 fossil species have been described.^[1]

The larger and more spectacularly colored jewel beetles are highly prized by insect collectors. The elytra of some Buprestidae species have been traditionally used in beetlewing jewellery and decoration in certain countries in Asia, like India, Thailand and Japan.

Description and ecology

Shape is generally cylindrical or elongate to ovoid, with lengths ranging from 3 to 80 mm (0.12 to 3.15 in), although most species are under 20 mm (0.79 in). Catoxantha, Chrysaspis, Euchroma and Megaloxantha contain the largest species. A variety of bright colors are known, often in complicated patterns. The iridescence common to these beetles is not due to pigments in the exoskeleton, but instead is caused by structural coloration, in which microscopic texture in their cuticle selectively reflects specific frequencies of light in particular directions. This is the same effect that makes a compact disc reflect multiple colors.

The larvae bore through roots, logs, stems, and leaves of various types of plants, ranging from trees to grasses. The wood boring types generally favor dying or dead branches on otherwise-healthy trees, while a few types attack green wood; some of these are serious pests capable of killing trees and causing major economic damage, such as the invasive emerald ash borer. Some species are attracted to recently burned forests to lay their eggs. They can sense pine wood smoke from up to 50 miles away, and can see infrared light, helping them to zero in as they get closer to a forest fire.^[2]

Ten species of flatheaded borers of the family Buprestidae feed on spruce and fir, but hemlock is their preferred food source (Rose and Lindquist 1985).^[3] As with roundheaded borers, most feeding occurs in dying or dead trees, or close to injuries on living trees. Damage becomes abundant only where a continuing supply of breeding material is available. The life history of these borers is similar to that of the roundheaded borers, but some exceedingly long life cycles have been reported under adverse conditions. Full-grown larvae, up to 25 mm long, are characteristically flattened, the anterior part of the body being much broader than the rest. The bronzed adults are usually seen only where suitable material occurs in sunny locations.

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  Unidentified species from Pune (India)
  

  
  

  
  


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  Unidentified species from Swifts Creek (Victoria, Australia)
  

  
  

  
  


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  Buprestinae (center right and lower left), Julodinae (center) and Polycestinae (others) from Charles Kerremans' Monographie des Buprestides
  

  
  

  
  


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  Fossil jewel beetle from the Eocene, found in the Messel Pit (Germany)
  

  
  

  
  


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  Jewel beetles of Salem, Tamil Nadu
  

  
  

  
  


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  Chrysochroa fulminans from Mindanao, Philippines
  

  
  

  
  

Systematics

Jewel beetle classification is not yet robustly established, although there appear to be five or six main lineages, which may be considered subfamilies, possibly with one or two being raised to families in their own right. Some other systems define up to 14 subfamilies.

The commonly accepted subfamilies, with some representative genera, are:

Oak Splendour Beetle (Agrilus biguttatus) specimen (Agrilinae)

Eurythyrea austriaca specimen (Buprestinae)

Temognatha alternata, a Buprestinae 2.6cm long from Cooktown, Australia

Capnodis cariosa specimen (Chrysochroinae)

Julodis ehrenbergii specimen from Greece (Julodinae)

Acmaeodera species (Polycestinae)

Agrilinae – cosmopolitan, with most taxa occurring in the Northern Hemisphere

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  Agrilus Curtis, 1825
  


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  Anodontodora Obenberger, 1931
  


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  Asymades Kerremans, 1893
  


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  Brachys Dejean, 1833
  


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  Chalcophlocteis Obenberger, 1924
  


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  Discoderoides Théry, 1936
  


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  Entomogaster Saunders, 1871
  


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  Ethiopoeus Bellamy, 2008
  


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  Madecorformica Bellamy, 2008
  


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  Meliboeus Deyrolle, 1864
  


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  Pachyschelus Solier, 1833
  


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  Paracylindromorphus Thery, 1930
  


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  Paradorella Obenberger, 1923
  


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  Pseudokerremansia Bellamy & Holm, 1985
  


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  Strandietta Obenberger, 1931
  

Buprestinae – cosmopolitan

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  Agrilozodes Thery, 1927
  


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  Anthaxia Eschscholtz, 1829
  


• Bubastoides


• Buprestis


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  Calodema – found only in Australia and New Guinea; usually in rain forests


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  Castiarina – about 500 species, found only in Australia and New Guinea, previously considered a subgenus of Stigmodera
  


• Chrysobothris


• Colobogaster


• Conognatha


• Eurythyrea


• Hiperantha


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  Metaxymorpha – found only in Australia, New Guinea, and Indonesia; usually in rain forests


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  Stigmodera – 7 species remain here


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  Temognatha – About 83-85 species, found only in Australia and New Guinea, previously considered a subgenus of Stigmodera
  

Chrysochroinae

• Capnodis


• Chalcophora


• Chrysochroa


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  Chrysodema Laporte & Gory, 1835 (= Cyalithoides)


• Euchroma


• Halecia


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  Lampetis Dejean, 1833 – sometimes included in the tribe Psilopterini, but actually not very close to Psiloptera (tentatively placed here)


• Lampropepla


• Perotis


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  Psiloptera (tentatively placed here)

Galbellinae

• Galbella

Julodinae

• Aaata


• Amblysterna


• Julodella


• Julodis


• Neojulodis


• Sternocera

Polycestinae

• Acmaeodera

References

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  Bellamy, C.L. & Nelson, G.H. (2002): Buprestidae. In:
  Arnett, Ross H. Jr. & Thomas, Michael C.: American Beetles (Volume 2). CRC Press.


• Akiyama, K. and S. Ohmomo. 2000. The Buprestid Beetles of the World. Iconographic Series of Insects 4.
  ISBN 4-943955-04-5. A 341-page work with 120 colour plates.

External links

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Wikimedia Commons has media related to Buprestidae.

Wikispecies has information related to Buprestidae

• Julodini


• Jewel beetle site, with extensive lists of species and many photos


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  Flickr Images


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  ZinRus Impressive photos.


• The World of Jewel Beetles (Buprestidae Home Page)


• Jewel beetles of Prague, with pictures


• Jewel beetles depicted on postage stamps


• Jewel beetles can hear fires, short summary of a JEB-Paper


• Bibliography


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  Taiwanese Site Images Binomial Names
  


• Images of types at NHM(London)


• Hampshire Museum - Beetles in jewelry


• Jewel Beetle High Resolution Photography