Published online by Cambridge University Press: 31 May 2012
The phylogenetic relationships between species groups and subgenera in the Forcipomyiinae are presented for the first time, from a consideration primarily of male genitalic structures and comparative morphology of all stages. A dendrogram showing the phylogenetic relationships within the subfamily and a figure showing the evolutionary trends in claspette development in the subfamily are given.The genitalia of Atrichopogon are considered as plesiomorphic and the genus a possible living prototype of all Ceratopogonidae.