I wasn't expecting to find any Lethocerus while on my expedition to the Huachuca Mountains, but I was pleasantly surprised when I did. Does anybody have access to a Belostomatid key for the United States or Arizona? If so I would very much be interested in finding out what species this is.

Update (19 October 2010):
I just found a copy of a key (with range maps) to the Lethocerus of North America, and it turns out Lethocerus medius is the only species found in this part of Arizona. Can anybody tell me how to move these photos to that species page?

Sources: Menke, A.S. A Review of the Genus Lethocerus in North and Central America, Including the West Indies (Hemiptera: Belostomatidae). Annals of the Entomological Society of America, Volume 56, Number 3, May 1963 , pp. 261-267(7)