title: Evolutionary innovations overcome ancestral constraints: a re-examination of character evolution in male sepsid flies (Diptera: Sepsidae).
authors.affiliation: Yale University, New Haven, CT 06520-8106, USA. gunter.wagner@yale.edu
authors.forename: Günter P
authors.initials: GP
authors.lastname: Wagner
authors.forename: Gerd B
authors.initials: GB
authors.lastname: Müller
mesh_terms: D000818:Animals; D005075:Biological Evolution; D004175:Diptera / Q000033:anatomy & histology / Q000145:classification / Q000502:physiology; D008297:Male; D008954:Models, Biological; D010802:Phylogeny; D012727:Sex Characteristics; D012726:Sexual Behavior, Animal