?Have you been to the river? Are the big stoneflies hatching yet?? Those two questions start to fly through the networks of computer emails, text messages, cell phone calls, and conversations in fly shops starting in May and continuing into the middle of July in many western states. Every year fly fishers look for, wait for, and try to hit the Pteronarcys californica hatch, or as it is known commonly: the salmonfly, giant stonefly, or those big bugs!