The Giant Mayfly is a subspecies of Mayfly, common in the Eastern United States. This insect is mostly common in the summer months. It is one of the largest types of Mayfly you will ever see. They lay their eggs in the water.
Snipping Tool can be used only as a screen shot, or snip, of any object you see on your screen. So, snipping tool cannot scroll. You might have to scroll down the screen and then use the tool.
To take a screen shot on a laptop, press Fn-Prnt Scrn.. The screen shot can then be pasted into an image file through image editing software. Most versions of Windows Vista and all versions of Windows 7 come with a Snipping Tool. To use this, click Start | All Programs | Accessories | Snipping Tool..