Belostoma sp. (Giant Water Bug).
| I found this Giant Water Bug in our swimming pool. I am very happy that I had a chance to take this picture and admire the amazing diving speed of this bug. Unfortunately adults "can inflict a painful bite if handled", which is less cool but explains the alternative name "Toe Biter". Luckily the bugguide also states that they "usually play dead when captured". |
Females attach their eggs onto the backs of males. They are widespread and have eight species in North America.
bug guide (this photo):