... Sepsid flies have received considerable research attention in evolutionary ecology because of their diverse, fast-evolving mating behaviours (Eberhard, 2001a(Eberhard, , 2003Kraushaar & Blanckenhorn, 2002;Martin & Hosken, 2004;Mühlh€ auser & Blanckenhorn, 2002;Puniamoorthy, 2014;Tan, Ng, & Meier, 2011) and their conspicuous secondary sexual morphology (male forelegs and genitals: Eberhard, 2001b;Pont & Meier, 2002;Bowsher & Nijhout, 2009;Bowsher, Ang, Ferderer, & Meier, 2013;Herath, Dochtermann, Johnson, Leonard, & Bowsher, 2015;. Mating systems range from species with classic female choice and male courtship to species with male scramble or contest competition, with associated changes in mating behaviour, morphology and life history (Puniamoorthy et al, 2008(Puniamoorthy et al, , 2009. ...