These began showing up approximately 2 weeks ago and have been found mostly in trees although they’ve been everywhere. (Spring Branch, Texas)
Your photo is of a Truncated true katydid, also called Central Texas leaf-katydid. They are found in Central Texas in oak woodlands.
They feed on oaks.
According to bugguide.net. “during outbreaks, they are known for defoliating Post Oak (Quercus stellata) and plateau live oak (Quercus fusiformis).
Katydids normally sing only at night, but during outbreaks they sing day and night (and how!!!)”