The deceased appears to be a Harnessed Tiger Moth, Apantesis phalerata, though that species i.d. is flappable. And according to National Audubon Society Guide to Insects, regarding tiger moths: "Male moths are attracted to artificial lights..., but females generally remain close to breeding areas and food plants." (Take from that what you will.)
The katydid seemed plenty alert and wary upon my approach. I believe this is a Greater Anglewing, Microcentrum rhombifolium (I confess to moving my lips as I spelled out that one.)
When listening to night-singing insects in the yard, I find some comfort in my ability to concentrate for a few seconds, and isolate four - sometimes five - different insect songs participating in the "mix." (I gave up trying to find spelling of brouhaha in the dictionary - Oh, there it is...)
