[2] Adult females of the genus snare prey mid-air by using a silk line with an adhesive blob on the end, similar to bolas used by South American gauchos.

They feed on flying insects, particularly moths, sometimes releasing pheromones that mimic those of their prey to attract them.

Males and juvenile females capture their prey directly with their legs.

Female abdomen large, wider than long, an occasion has dorsal humps or lobes.

[6] The attraction of preys by Mastophora is undoubtedly linked to an extraordinary endocrinoid abdominal tissue discovered histologically and named by A. Lopez, France (external link), a structure unfortunately ignored in english and spanish publications concerning the genus nevertheless America autochthonous.