Stone Flies

While on the river the other day I spotted some stone flies fluttering about. Here's a female waiting for the right time to lay her eggs.  One thing I noticed was the difference in color between the  head/thorax and the abdomen.  I'm going to tie my stimulator a little more drab in the abdomen and high light the segmentation, just keeping the color to the head and thorax.

New Jersey Golden Stone and nymph shuck.

Notice the egg sac.

Close-up top view.

Close-up bottom view.