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Photo Information
Copyright: Leisa Hennessy (Snoops) Gold Star Critiquer/Gold Note Writer [C: 71 W: 0 N: 170] (555)
Genre: Animals
Medium: Color
Date Taken: 2006-06-12
Categories: Insects
Camera: Nikon D50, Sigma 70-300 4-5.6 APO DG MACRO
Exposure: f/5.6, 1/1000 seconds
More Photo Info: [view]
Photo Version: Original Version
Date Submitted: 2006-06-14 6:03
Viewed: 3274
Points: 4
[Note Guidelines] Photographer's Note
The fly life cycle is composed of four stages: egg, larva (commonly known as a maggot), pupa, adult. The eggs are laid in decaying flesh, animal dung, manure, or pools of stagnant water - whatever has ample food for the larva.

Some types of maggots found on corpses can be of great use to forensic scientists. By their stage of development, these maggots can be used to give an indication of the time elapsed since death, as well as the place the organism died. The size of the house fly maggot is 9.5-19.1mm (3/8 to 3/4 inch). At the height of the summer season, a generation of flies (egg to adult) may be produced in 12-14 days.

Maggot identification uses a classification called "Instar" stages. An instar I is about 2-5 mm long; instar II 6-14 mm; instar III 15-20 mm. These measure about 2-3 days, 3-4 days, and 4-6 days (for average house flies or bottle flies) since the eggs were laid. By use of this data, plus other signs, the approximate time since death can be estimated by forensic scientists.
The world's rarest known fly families include the Eurychoromyidae, Broad-headed Flies and the Boston Red-Tinted Warbler Flies. While the first family is harmless to human life, the second is known for attacking warm-blooded bodies, especially any exposed skin of humans.

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Critiques [Translate]

  • Great 
  • Adam73 Gold Star Critiquer/Gold Note Writer [C: 208 W: 5 N: 522] (2253)
  • [2006-06-14 10:30]

Very nice work with DOF here, focus is on the flys Big read eyes. The colors go real well and I think you did really good on this pic because most people would have tried to crop real tight to show a more macro type shot but somtimes pulling back is better. The only thing I could say is the fly is smack dab in the center of the shot. Might be a litte better to have cropped it a bit more to the bottom left of the frame.

  • Great 
  • loot Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 5524 W: 722 N: 4163] (11276)
  • [2006-06-17 22:54]

Hi Leisa
We both posted flies not far apart from each other and provided notes about maggots. I am just a little surprised that you did not manage to get a closer capture seeing that your macro lens was at its maximum 300mm focal length.
While the composition does look good you maybe could have moved the fly slightly to the left to utilise the dead space which would have placed the fly more off centre. The colours are great and the details in the facial area show up very sharp. However, it does seem like you focused on the front area of the leave which made the DOF on the subject appears to be a bit shallow. The exposure/lighting control was well managed.
Good effort and TFS.

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