Asiokeroplatus, Ševčík & Mantič & Blagoderov, 2015

Ševčík, Jan, Mantič, Michal & Blagoderov, Vladimir, 2015, Two new genera of Keroplatidae (Diptera), with an updated key to the World genera of Keroplatini, Acta Entomologica Musei Nationalis Pragae 55 (1), pp. 387-399 : 392

Asiokeroplatus gen. nov.

Type species. Asiokeroplatus tiger sp. nov., here designated.

Diagnosis. A medium-sized keroplatid fungus gnat with unmarked wings and with posterior third of its abdomen bent ventrally. Three ocelli in a triangular position. Median ocellus distinctly smaller, rudimentary. Antennae with cylindrical flagellomeres, each flagellomere about as long as wide or shorter. Mouthparts strongly reduced, palpus with only two short palpomeres. Wing transparent, brownish, without markings. Vein R 4 absent. Stem of M-fork relatively long, about half as long as M 2. Cu1 distinctly curved towards the tip. A 1 weak, not reaching wing margin. Terminalia with a long aedeagal complex, reaching internally to the 7 th abdominal segment.

Differential diagnosis. The new genus differs from most genera of the Keroplatidae mainly in wing characters, such as the absence of R 4, long stem of M-fork, strongly downcurved vein Cu 1 and reduced A 1. It is similar in most characters to the recently described Neotropical genus Pseudochetoneura Ševčík, 2012 , especially in overall habitus, shape of antennae, reduced palpi, ventrally bent abdomen and the outline of the male terminalia, especially the long apodeme of aedeagal complex. Asiokeroplatus gen. nov. differs from Pseudochetoneura mainly in distinctly larger body size and in different wing venation (basal cell and R-M fusion are strongly reduced in Pseudochetoneura ). The bent male abdomen and the long aedeagal complex in these two genera are reminiscent of those of Urytalpa Edwards, 1929 (Orfeliini) but in the other characters (mainly on the head and wing) they are sufficiently different. In the wing venation, Asiokeroplatus gen. nov. shows also some similarities with the Oriental Chetoneura Colless, 1962 and Microkeroplatus Ševčík & Papp, 2009 , but both the latter genera have quite different male terminalia and antennae (see ŠEVČÍK 2012a, ŠEVČÍK & PAPP 2009). Etymology. The generic name is derived from Asia, referring to its distribution, and Keroplatus Bosc, 1792 , a related genus. Gender is masculine.