green metallic fly
|[Note Guidelines] Photographer's Note|
|The common green bottle fly (biological name Phaenicia sericata or Lucilia sericata) is a blow-fly found in most areas of the world, and the most well-known of the numerous green bottle fly species. It is 1014 mm long, slightly larger than a housefly, and has brilliant, metallic, blue-green or golden coloration with black markings. It has short, sparse black bristles (setae) and three cross-grooves on the thorax. The wings are clear with light brown veins, and the legs and antennae are black. The maggots (larvae) of the fly are used for maggot therapy.|
Distribution and behavior
Lucilia sericata is common all over the temperate and tropical regions of the planet, mainly the southern hemisphere, particularly in Africa and Australia. It prefers warm and moist climates and accordingly is especially common in coastal regions, but it also is present in arid areas. The female lays her eggs in meat, fish, animal corpses, infected wounds of humans or animals, and excrement. The larvae feed on decomposing tissue. The insect favours species of the genus Ovis, including domestic sheep in particular. This can lead to Blowfly strike, causing problems for sheep farmers, though Lucilia sericata is not a major cause of blowfly strike in most regions.
The defining characteristic of Lucilia sericata, and most used when identifying the adult fly is the presence of three bristles on the dorsal mesothorax. This body region is located on the middle of the back of the fly. L. sericata is almost identical to its sister species, Lucilia cuprina. Identification between these requires microscopic examination of two main distinguishing characteristics. As opposed to L. cuprina which has a metallic green femoral joint in the first pair of legs, L. sericata is blue-black. Also, when looking at the occipital setae, L. sericata has 68 bristles on each side while L. cuprina have only one.
The life cycle
The life cycle of Lucilia sericata is typical of flies in the family Calliphoridae in that the egg hatches into a larva that passes through three instars, enters a prepupal and then a pupal stage before emerging into the adult stage or imago. The female lays a mass of eggs in a wound, a carcass or corpse, or in necrotic or decaying tissue. The eggs hatch out in about 810 hours in warm moist weather, but may take as long as three days in cooler weather. In this they differ from the more opportunistic Sarcophagidae, that lay hatching or completely hatched eggs. A single female L. sericata may produce 100 to 200 eggs in its lifetime. The pale yellow or grayish conical larvae, like those of most blowflies, have two posterior spiracles through which they respire. These larvae are moderately sized, ranging from 10 to 14 millimeters long.
The larva feeds on dead or necrotic tissue for about 3 to 10 days, depending on temperature and the quality of the food. During this period the larva passes through 3 larval instars. At a temperature of 16˚C the first larval instar lasts about 53 hours, the second about 42 hours and the third about 98 hours. At higher temperatures (27˚C) the first larval instar lasts about 31 hours, the second about 12 hours, and the third about 40 hours. Third instar larvae then drop off the host onto soil, where available, where they will enter a pupal stage which usually lasts from 6 to 14 days. However, if the temperature is suitably low, a pupa might overwinter in the soil until the temperature rises. After emerging from the pupa the adult will feed opportunistically on nectar or other suitable food, such as carrion, while it matures. Adults usually lay eggs about 2 weeks after they emerge. Their total life cycle typically ranges from 2 to 3 weeks, but this varies with seasonal and other circumstances. L. sericata usually completes 3 or 4 generations each year in cold temperate climates, and more in warmer regions.
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- [2012-12-30 11:49]
Exceptional macro in great sharpness, details and DOF. Splendid clear colours. Taken from a very good POV in a nice composition. Beautiful matching background.
The best wishes for the new year to you and your family.
- [2012-12-30 12:07]
Hi Nuri,great macro,always difficult whit these small dimensions...ehehe..and perfect exposure too,to take so well the metallic green,i like it! I wish you all the best for the new year and thanks for share,Luciano
An amazing macro. You have captured a great deal of detail in this image. I like a lot about this photo, the POV, DOV, and composition.
What is special about this image for me is the colour. From the background to the stem, leaf, and finally the fly, they just blend together so well.
Happy New Year and all the to you and yours in the future.
Thanks for sharing
Superb photo, excellent detail and light, perfectly focused, good point of view
- [2012-12-30 22:53]
Excellent macro. good lighting and background. tfs. Happy New Year.
Ciao Nuri, great macro of fantastic fly, splendid sharpness, fine details and wonderful metallic colors, very well done, my friend, Happy New Year 2013, ciao Silvio
An outstanding macro,captured with great details,lovely play of light and perfect exposure,Beautiful composition with nice Soft and blurry BG.
Happy New Year to you and your family.
- [2012-12-31 4:46]
very nice macro shot of this green bottle fly,good presented , very nice BG and POV, well captured with nice colours.Regards Siggi
- [2013-01-05 4:31]
Bu muhteşem güzelliği, böyle enfes çekimlerle izleyenlere sunduğunuz için size ne kadar teşekkür etsek azdır. Bu sayede doğanın enfes güzelliklerinin farkına varabiliyoruz ve onu daha çok benimsiyoruz.
Yeni yılınız kutlu olsun dostum.
a great Macro with stunning sharpness and perfect colour and composition.