Ambrysus mormon

Ambrysus mormon, the creeping water bug, is a species of creeping water bug in the family Naucoridae. It is found in the western United States and northwestern Mexico.

Subspecies
There were formerly three subspecies of Ambrysus mormon but they were synonymized by Reynoso-Velasco and Sites:
 * Ambrysus mormon heidemanni Montandon, 1910
 * Ambrysus mormon minor La Rivers, 1963
 * Ambrysus mormon mormon Montandon, 1909