Such roles are often made in pairs, that is, two corps dancers, dance together, frequently in mirror image.
Such dances are most commonly created for a pair of ballerinas but are occasionally made for (two or more) danseurs.
At a gala or other deluxe performance a company's soloists or principal dancers might dance demi [1] roles.
The second meaning of demi-soloist is that of a rank in a ballet company, the English equivalent being second soloist.
The Australian Ballet follows the French naming[4] and calls their demi-soloist equivalents coryphées[5].