Assertion: grasshopper's forewing | /r/HasProperty | stridulation
Facets:
Source sentences:
text: Those species that make easily heard noises usually do so by rubbing a row of pegs on the hind legs against the edges of the forewings (stridulation).
text: Those species that make easily heard noises usually do so by rubbing the hind femurs against the forewings or abdomen (stridulation), or by snapping the wings in flight.