I was at one of my favorite natural areas in Ohio the other day, the always interesting Cedar Bog. If you've not been to this 400+ acre fen, put it on your list. There is never a shortage of fascinating flora and fauna, and this day was no exception.
"Nothing is known of the egg stage and oviposition site of Calopteron species."
So states a University of Florida website on this beetle genus. There are so many things that we still know so little about, and apparently Net-winged Beetles fall into this camp.
So, next time you are in shady forested haunts, be sure to investigate any lightning bug-like critters that flit past.