A REVISION OF NEUROBEZZIA WIRTH AND RATANAWORABHAN AND NEUROHELEA KIEFFER, WITH A DESCRIPTION OF A NEW GENUS AND DISCUSSION OF THEIR PHYLOGENETIC-RELATIONSHIPS (DIPTERA, CERATOPOGONIDAE)

The genus Neurohelea Kieffer is restricted to its type species, N. lut eitarsis (Waltl) and is returned to the Heteromyiini. The Nearctic spe cies previously recognized as Neurohelea nigra Wirth and N. macroneura (Malloch) are members of the Ceratopogonini and are placed in the new genus Atyphohelea. Neurohelea nigra Wirth is a new synonym of the typ e species Atyphohelea macroneura (Malloch), new combination. The Balti c amber species Neurohelea cothurnata (Meunier) is also placed in Atyp hohelea as a new combination. An unnamed species from Taiwan is descri bed and the pupa of A. macroneura is newly described. The male of Neur obezzia granulosa (Wirth) is described for the first time. The male pr eviously identified as N. granulosa by Grogan & Wirth (1978) is probab ly the male of Amerohelea frontispina (Dow & Turner) in the Palpomyiin i. Medeobezzia Yu is regarded as a new synonym of Neurobezzia Wirth & Ratanaworabhan, which now includes three species. A new world key to t he genera of male and female Heteromyiini is provided. The phylogeneti c relationships of the described genera are discussed.