N. Puniamoorthy, M. R. B. Ismail, D. S. H. Tan & R. Meier 2009, “From kissing to belly stridulation: comparative analysis reveals surprising diversity, rapid evolution, and much homoplasy in the mating behaviour of 27 species of sepsid flies (Diptera: Sepsidae).” Journal of Evolutionary Biology 22, 2146-2156.
(Careful of impressionable minds looking over your shoulder while watching this)
The full list of videos can be accessed on the evolutionary biology website here
courting in the sepsid world seems more interesting than homo sapiens..