Now look at the Oblong-winged Katydid's wing shape. There is indeed a distinctive bend in the upper wing and they're also wider and a little shorter.
When the temperature drops to what katydids would consider to be chilly after sunset (low 60s or perhaps upper 50s) their songs slow considerably. These are cold-blooded individuals and they can't move -and therefore, sing - as fast at those temperatures and their pitch won't be as high. One recent night at 61 degrees, I noticed that I was actually hearing more wing strokes than usual. Do they always have this many wing strokes that I didn't hear at a faster tempo, or was this unusual?
Within a couple of minutes, I realized that two more males were nearby on the same thorn-filled stage. Rattlers often hide under the leaves but occasionally sing from an upper surface to advertise for females.
I brought one of that trio of male Rattler Round-wingeds home to compare with the Clicker Round-winged Katydid I was given last year. (See my post about this species for a visual comparison.) Clickers (Amblycorypha alexanderei) don't seem to be present in NE Ohio. They’re not a species I ever hear and the two are visually identical so I wouldn’t be able to tell by sight. I had hoped for an opportunity to study a Rattler’s behavior after living with the Clicker last year, but could not assume that finding multiple Rattlers would even be possible.
The Oblong-winged’s legs and wings are significantly larger.
He has easily jumped from his butterfly cage directly to the top of my head.
The evening he decided to fly, he didn’t take just a quick trip from the dining room
table to the top of the lower window. He took a vacation. Using the same
jump-and-extend-the-wings takeoff as the Rattler, the Oblong-winged repeatedly circled the dining room and
then confidently flew into the hallway, ultimately landing at the edge of a
bathroom shelf. It was easy to see how one could fly around a meadow or wetland
to suitable vegetation while the Rattler would stay hidden in the understory.