stridulate
To make a high-pitched chirping, grating, hissing, or squeaking sound, as male crickets and grasshoppers do, by rubbing certain body parts together.
intransitive
A window was open, and the crickets were stridulating at an ominous speed in the black motionless foliage.
Where it comes from
Back-formation from stridulation. (From earlier term stridulous; from Latin strīdulus (“giving a shrill sound, creaking”), from strīdō (“utter a shrill or harsh sound; creak, shriek, grate, hiss”))
Adapted from the Wiktionary entry stridulate (CC BY-SA 4.0).