That is truly amazing, I almost can't even visualize a katydid that large! (I'm holding out my hands 7 inches apart and trying to see it, and I'm in shock!) One question though: What is it that allows insects in tropical parts of the world to grow so big? Are there any theories or facts on this? I once read somewhere that insects in the Carboniferous (? I think) period were so gigantic because there was a higher oxygen ratio in the air on the planet back then...could it be that there is a higher oxygen ratio in tropical areas, or do the same large species grow as large in captivity here in the US or wherever?