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Danaus genutia (wing pattern)


Danaus genutia (wing pattern)
Photo Information
Copyright: Haraprasan Nayak (haraprasan) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1570 W: 101 N: 5421] (20403)
Genre: Animals
Medium: Color
Date Taken: 2007-11-26
Categories: Insects
Camera: Nikon Coolpix E5600
Exposure: f/5.9, 1/60 seconds
Details: (Fill) Flash: Yes
More Photo Info: [view]
Photo Version: Original Version
Date Submitted: 2008-04-07 4:48
Viewed: 3050
Points: 20
[Note Guidelines] Photographer's Note
This is a stripped tiger/common tiger butterfly (Danaus genutia). It gave me ample opportunity to shoot this close. only 10% cropped from 5 MP frame. Thanks a lot for viewing.

A butterfly has four wings, two forewings and two hindwings. They are attached to the second and third thoracic segments (the meso- and meta-thorax). Strong muscles in the thorax move the wings up and down in a figure-eight pattern during flight.

When the fully-grown adult butterfly emerges from its pupa, its delicate wings are crinkled, wet, and uninflated. The butterfly hangs upside-down and pumps blood into the wings to inflate them. It must then wait for the wings to dry before it can fly. When the fragile wings fray or are torn, they do not repair themselves.

Wing Structure and Scales: Butterfly wings are made of two chitonous layers (membranes) that are nourished and supported by tubular veins. The veins also function in oxygen exchange ("breathing"). Covering the wings are thousands of colorful scales, together with many hairs (setae). The name Lepidoptera (which includes butterflies and moths) means "scale wing" in Greek. These wing scales are tiny overlapping pieces of chitin on a butterfly or moth wing. The scales are outgrowths of the body wall and are modified, plate-like setae (hairs). The front and back of the wings usually have different patterns.

Scent scales are modified wing scales on the forewing of male butterflies and moths (on the costal fold) that release pheromones. These chemicals attract females of the same species. Scent scales are also called androconia.

Color: Many butterflies and moths are brilliantly colored, while others are drab. There are often ultraviolet patterns in the wings that we cannot see, but which may be seen by other butterflies. Even many of the colorful species have drab-colored outer wings (that are visible when the animal is at rest). The coloration of these insects serves many purposes, including:

* Camouflage, in which the color of the animal helps it blend into the environment, hiding the insect. The Australian leafwing butterfly, for example, is shaped and colored like a leaf.
* Warning (or aposematic) coloration: brightly-colored butterflies and moths are either bad-tasting or a mimic of similar-looking bad-tasting butterflies.
* Attracting and finding mates, who look for certain colors and patterns.
* Deceiving predators into thinking they're bigger than they really are. Some wings have large "eyespots" which make the butterfly or moth look like the face of a larger animal (like an owl), scaring away some predators.
* Soaking up heat: dark-colored scales soak up heat very well when the butterfly suns itself. Like all insects, butterflies are cold-blooded. When they get too cold, they warm themselves in the sun.

The Coupling of the Wings: During flight, the forewing and hindwing are held together and function as one wing. The coupling mechanism differs in different species. In most butterflies, a lobe on the hindwing presses against the forewing. In most moths, bristles on the front edge of the hind wings (called the frenulum) connect with hooks on the hind edge of the forewing. In some moths, a lobe at the base of the forewings (called the jugum) overlaps the hindwings.

Wings At Rest: When at rest, butterflies hold their wings vertically. Moths hold their wings horizontally when at rest.

Source : Enchanted Learning.

goldyrs, eqshannon, jaycee, matatur, gannu, bahadir, boreocypriensis has marked this note useful
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Critiques [Translate]

Hi HP,
A very informative note and a good picture showing us the patterns and scales on the wings of this beautiful butterfly.
I love such kind of shots and your growth in TN has been phenomenal
TFS
Goutham

HP,
I am so proud to look at work like this...I feel very small when I see your work...
Thanks for sharing your beautiful work...
This shot is perfectly exemplary...
Kind regards,
Goldy

A very good idea! It shows various elements otherwise not seen. As a child I had a neighbor who with his dad collected butterfly's and had drawers of theme..they caught them in a net and put them into a jar with chloroform...somehow it didn't feel right to me...and I still feel the same.
Bob

  • Great 
  • jaycee Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 2454 W: 10 N: 8044] (25460)
  • [2008-04-07 10:28]

Hi Haraprasan,

I have never seen a macro of a butterfly wing before! What a fantastic idea. The details are sharp and wonderful. Wish you would do another one of just the wing patterns - I like the glimpse we have of that.

Jane

Such a fine and colorful detail from the wings of a b.fly, and a little part of the abdomen Haraprasan, the accompanying note is very informative my friend, I somehow believed that it is the females that secrete attractive pheromones for males to detect from far away with their (especially in moths) elaborate antennae.
Mehmet

  •      
  • lousat Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 6595 W: 89 N: 15659] (65489)
  • [2008-04-07 15:46]

Hi Hara,this macro is super! wonderfull pic and wonderfull note,thanks for this precious work,Luciano

  • Great 
  • arfer Gold Star Critiquer [C: 2731 W: 0 N: 0] (0)
  • [2008-04-08 9:29]

Hello Haraprasan

The details are wonderful.The POV is amazing.
You managed to get very close on this shot.
The wing is well lit with beautiful rich colours.
The textures show well.
TFS
Rob

  • Great 
  • joey Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1739 W: 224 N: 6872] (24909)
  • [2008-04-08 13:55]

Brilliant abstract of this Common Tiger's wing!
Very good detail showing all the minute scales.
Vibrent and bold colours.
Excellent exposure.
Well done Haraprasan,
Joe

  • Great 
  • gannu Gold Star Critiquer/Gold Note Writer [C: 988 W: 4 N: 3277] (14761)
  • [2008-04-10 2:14]

Hello HP, You tried to produce a different subject herely. Sometime Photography not all about producing it is about conveying a subject. You have handled it very well here. Ganesh smiley tomorrow

Hello Haraprasan,
Splendid macro shot! TFS and Regards,
Bahadir

Hi my heartfelt and beloved friend Haraprasan,
Superb macro shot of tiger butterfly-wing details with splendid and great clarity! TFS.
Cheers,
Bayram

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