It is NOT a wheel bug, notice the modified hind legs. It is hard to tell for sure if it is even an assassin of any kind. It may just be an immature of some kind of leaf-footed bug, which most are plant or seed feeders of little concern. It is possible it strayed from its normal host tree or shrub. Don't worry about it harming your plants even if it is a leaf footed bug and not an assassin.
Being your neighbor across the gulf we get a lot of the same bugs... I had a pile of these on my rooster spurs a while back, as it turns out while similar to an assassin, they are somewhat different. Assassins have a white spot on their legs. leaf-footed bugs do not.
LFB (leaf footed bug) bits the fruit, injects enzymes that break it down, and then sucks out the resulting product. It kind of bleaches out the fruit... makes them ugly, affects the consistency around the bite (up to an inch)....Some people say they notice a different taste... I don't. I generally follow organic principals in my gardening, but I had to resort to chemicals to kill mine off. Well, it was a combination of things... I stripped all my fruit off all 400 plants (removed their food source), made sure the garden stayed impeccably weeded for a week, and when that didn't chase them all off, I sevin dusted...
As I recall once they mature, they sort of look like a brown stink bug. I've never given them the chance, but I suppose they can bite.
Here is some info on LFB From the university of Florida extension service:
http://entnemdept.if...ffooted_bug.htm
Here is the UF extension service article on the Assassin bug (note the white spots).
http://entnemdept.if...us_longipes.htm
Anything that bites your plant opens you up to the possibility of infection. Especially when they hop from plant to plant... none of your plants may be sick, but who knows about all of your neighbors in the flight radius of the bug...