The lesser Water boatman and his amazing musical genitals...

Although this may sound like one of the less popular Andrew Lloyd Webber Musicals, today's link is actually about the exceptionally loud mating "call" of a pond insect. The insect- The Lesser boatman,Micronecta scholtzi, attracts females using a sound it generates by rubbing ("stridulating") its penis against its abdomen, or, as the tabloid newspaper, The Sun, puts it "Bug's musical willy breaks noise record"-

http://www.thesun.co.uk/sol/homepage/news/3669816/Bugs-musical-willy-breaks-noise-record.html

The original scientific article is by Paris-based researcher Jérôme Sueur and David Mackie and James F. C. Windmill of the University of Strathclyde and goes by the more sober title of
"So Small, So Loud: Extremely High Sound Pressure Level from a Pygmy Aquatic Insect (Corixidae, Micronectinae)"- you can find it in full online here-
http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0021089

Stridulation- "the act of producing sound by rubbing together certain body parts" is best known in grasshopppers and crickets. However, it has been found in a variety of insect species, including weevils and scarab and tiger beetles, as well as in certain tarantulas and even snakes, for example, saw scale vipers (Echis species)