I'm comfortable putting this instar under Black-horned Tree Cricket based on: The antennae are dark; there's a dark strip (but not reddish) in the center of a dark head and the strip extends into the pronotum; there is black on the limbs, and (although my own theory based only on my own experience raising several species) -- the row of white marks running down the abdomen on either side of the midline have a dash-like pattern rather than a spotted pattern. All of these characteristics point to O. nigricornis. The only similar would be Forbes' Tree Cricket; however, their range is currently shown only as far east as Ohio.