|Copyright: krishnagopal Kodoth (dugulk)
|Date Taken: 2008-09-08|
|Camera: Canon Powershot S2-IS 12X Zoom|
|Exposure: f/2.7, 1/200 seconds|
|More Photo Info: [view]|
|Photo Version: Original Version|
|Date Submitted: 2008-11-05 4:02|
|[Note Guidelines] Photographer's Note|
|Blow-flies: (also frequently spelled blow flies or blowflies), carrion-flies or bottle flies are members of the family Calliphoridae of flies (Diptera). Some members of this family are known as bluebottles, clusterflies or greenbottles. Flies in this family are often metallic in appearance and between 10 to 12 mm in length. Calliphoridae adults are known for being shiny with metallic coloring, often with blue, green, or black bodies. Antennae are 3-segmented, aristate. The arista are plumose the entire length, and the second antennal segment is distinctly grooved. Members of Calliphoridae have vein Rs 2-branched, frontal suture present, and well developed calypters.|
Adult blow-flies are occasional pollinators, being attracted to flowers with a strong odor resembling rotting meat, such as the American pawpaw or Dead Horse Arum. There is little doubt that these flies utilize nectar as a source of carbohydrates to fuel flight, but just how and when this happens is unknown. One study has been done to prove that the visual stimulus a blow-fly receives from its compound eyes is what is responsible for causing its legs to retract from their flight position and allow it to land on any surface.
Larvae of most species are scavengers of carrion and dung and most likely constitute the majority of the maggots found in such material, although it is not uncommon for them to be found in close associate with other dipterous larvae from the families Sarcophagidae, Muscidae, and many other acalyptrate muscoid flies.
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