well, like the old saying goes...a picture is worth a thousand words
posting pics is easy...open a free account on a hosting site (i use photobucket.com) and then upload your pics to your account on the site. photobucket provides the link info - all you need to do is copy the line of info (the IMG line) and paste it into your post and you're good to go.
as to the bug. i HATE bugs...love to be out in the dirt digging; just can't stand it when i come across bugs (i always wear gloves so they never touch my skin - *shudders at the thought* )
what part of pa are you in again? (i think you told me before...can't remember where, tho). and you say there are a lot of them in your lawn? are they alive or dead?
could they be some type of crickets? some get pretty big (even more than 3 inches). they've got distinctive back legs tho - very long and bent midway. they would be dieing off (or maybe going into hibernation) at this time of year though...did that area of the lawn get dug up by something? may have distubed their hibernation burrow.
other than waterbugs/roaches, i can't think of anything that gets that big...at least not anything that would be in pa.