"No, Van did not desire to see the Count. He said so to the pretty messenger, who stood with one hand on the hip and one knee turned out like an extra, waiting for the signal to join the gambaders in the country dance after Calabro's aria."
MY QUESTION: WHO IS "CALABRO"? AN OPERA CHARACTER? THE REFERENCE TO A COUNTRY DANCE ECHOES THE SCENE (I-2) IN WHICH DEMON SEDUCES MARINA DURING A PERFORMANCE OF A PLAY BASED ON "EUGENE ONEGIN."
EDITOR's AFTER THOUGHT. Mulling the thing over I wonder if the cavorting figure refers to a goat rather than a horse--since the toponym "Calabria" appears to derive from the root for "goat" whose capering is dance-like. The country dance "Gambade" derives from the root for "Leg;" hence a jumping dance.
Also I wonder if there is a scence in Tchaikovsky's EUGENE ONEGIN in which a messenger assumes the pose VN describes (and joins in the girls dance).