Bugle with a single valve, lowering the pitch by a 4th. Made in different sizes: sop. in B♭, cont. in E♭, ten. in B♭, bar. in B♭, and bass in F. Became popular with bugle bands during 1914–18 war. Presumably of It. origin (Bersaglieri = a sharpshooter corps of It. army).