The mammoth Giant Water Bug (Lethocerus americanus)

This beauty was swimming with my son at the Coral Springs Aquatic Complex during his training today in the morning.

Imagine the coaches and kids commotion. I managed to save it from collective ravage. The picture from the bottom (last one in the stack) is crappy, however from the top it is a good looking babe.

Need confirmation whether this is indeed a Lethocerus americanus.

Below information extracted from:

http://www.insectidentification.org/insect-description.asp?identification=Giant-Water-Bug