title: Sexual selection: do flies lie with asymmetric legs?
abstract: A newly described species of empidid or 'dance fly' shows a bizarre polymorphism in their forelegs, which presumably serve as a mating lure. This trait may have evolved by frequency-dependent deceptive male signalling.
authors.affiliation: School of Biology, University of St Andrews, Dyers Brae House, St Andrews, Fife, Scotland KY16 9TH, UK. mgr@st-andrews.ac.uk
authors.forename: Michael G
authors.initials: MG
authors.lastname: Ritchie
authors.forename: Karim
authors.initials: K
authors.lastname: Vahed
mesh_terms: D000819:Animal Communication; D000818:Animals; D004175:Diptera / Q000235:genetics / Q000502:physiology*; D005121:Extremities / Q000033:anatomy & histology*; D005260:Female; D008297:Male; D052586:Mating Preference, Animal / Q000502:physiology*; D012641:Selection, Genetic; D012727:Sex Characteristics