[9] The male genitalia of M. scalare are figured by Dusek and Laska (1967).

This species is present in most of Europe, the Near East, North Africa, and the eastern parts of the Afrotropical realm south to Zimbabwe and throughout the Indomalayan realm to New Guinea.

Further, the yellow markings of the male are roundish or diamond-shaped, while those of the female are triangular patches.

Little is known of its biology, but it is suspected to be general predator of small insects in leaf litter.

Adults fly from April to November and inhabit gardens, meadows, and flowering bushes where they feed.