Mating with sexually attractive males provides female Gryllus firmus field crickets with direct but not indirect fitness benefits

Females choose to mate with certain males to accrue either genetic or direct benefits, and male sexual attractiveness evolved to advertise those benefits to potential mates. Sexually attractive males are expected to be of higher genetic quality and thus possess greater body condition and perhaps greater disease resistance. Positive covariance between male sexual attractiveness and disease resistance should thus provide females an avenue for...