01921nas a2200145   4500008004100000245005600041210005600097300001100153490000600164520142000170100002901590700002701619700002901646856010001675       1995                        eng d00aTriassic Diptera and initial radiation of the order0 aTriassic Diptera and initial radiation of the order  a75-1150 v63 aTriassic Diptera Nematocera from Central Asia are described: Mabelysia chariest (Limoniidae), Gnomusca molecula and G. renyxa (?Limoniidae, Gnomuscinae subfam. n.), Vymrhyphus tuomikoskii and V. triassicus (Protorhyphidae, Anisopodoidea), Nadiptera kaluginae and N. pulchella (Nadipteridae fam. n., Ptychopteroidea), Vladiptera kovalevi, Dilemmala specula, Psychotipa predicta, and P. depicta (all Vladipteroidea superfam. n. and Vladipteridae fam. n., two latter Psychotipinae subfam. n.), Kuperwoodia benefica and Anemeca liya (both Hennigmatoidea superfam. n. and Hennigmatidae fam. n., the former Kuperwoodiinae subfam. n.). The type of the latter family, Hennigma cladistorum, is described from the Cretaceous of Mongolia, and Nadiptera anachrona from the Jurassic of Kyrgyzstan. Mesozoic Eoptychopteridae are divided into three subfamilies. The Jurassic family Ansorgiidae is transferred into Blephariceroidea; Triassic Alinkidae is provisionally assigned to Pachyneuroidea. The most primitive dipterans, Vladipteridae, are placed in Tipulomorpha. The radiation of Nematocera is discussed (original phylochronogram and modified system given); some infraordinal concepts are criticized. The origin of Diptera from Permian Mecoptera similar to Robinjohniidae is suggested; it's hypothesized that the dipteran wing structure was formed mainly due to transfer of mecopteran hindwing characters onto the forewing. 1 aShcherbakov, Dmitrii, E.1 aLukashevich, Elena, D.1 aBlagoderov, Vladimir, A.  uhttp://www.online-keys.net/sciaroidea/1991_2000/Scherbakov&al_1995_DiptRes_InitialRadiation.pdf