It's a wild pea flower.
This was done with a feebie lens that someone gave me this morning. It's an old Vivitar Series 1, 70-210mm f3.5 Macro Focusing zoom made in the late 1970s. This is close to 100% crop.
Shooting; monopod & attached flash with diffuser.
Basic edit; iPhoto then resize with Preview.
Here's the whole image.
Re the comments. The purple hue on the ant is due to the flash coming through the petal of the flower from above. The whole scene is about the size of my thumb nail.
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