This insect's sound as he rubs his wings together is a courtship song
By late summer, most of our singing insects  grasshoppers, katydids,... [DOC] [TLE] This Is What a Cicada Orchestra Sounds Like | Center Theatre Group [PAR] Sep 30, 2015 ... What we call these soniferous insects (si-KAY-duh is more common) has got ... 
the sounds crickets and katydids make by rubbing their wings together, or what ... 
A courting song will show his virility and hopefully convince a female ... and 
bangs his wings together to produce a short, sharp clicking sound.