Oriental species of clusiid flies (Diptera: Clusiidae: Clusiinae) Author Sasakawa, Mitsuhiro text Zootaxa 2011 3038 1 28 journal article 46304 10.5281/zenodo.205904 62376e09-f30b-4fb0-a635-8f8f43e008fd 1175-5326 205904 Genus Heteromeringia Czerny Heteromeringia Czerny, 1903 : 72 . Type species, Heteroneura nigrimana Loew, 1864 , fixed by monotypy. Diagnosis. Pedicel with obtuse outer triangular projection and no inner projection; arista minutely pubescent to shortly plumose; prsc absent; lsc one or two; crossvein bm-cu complete, M1 ratio 4.0–8.5, ultimate section of CuA1 slightly shorter than penultimate section; tibiae without pd; surstylus narrow, usually with several spinules on inner tip; cerci separated or united; basiphallus at least partially coiled; hypophallus and paraphallus varying considerably in shape or undeveloped. Males of the nitida -group of Lonsdale and Marshall (2007a) usually have a small, white or yellowish disc on the anepisternum before the posteroventral mesopleural suture (present in the Oriental H . abatanensis sp. nov. , H. didyma Sasakawa, 1966 , H. helicina Sasakawa, 1966 , H. melaena Sasakawa, 1966 , H. nitobei Sasakawa, 1966 , H. paraphalloides sp. nov. , H. pectinata sp. nov. (female too), and H . steyskali Sasakawa, 1966 , but absent in H. melanoprotoma sp. nov. . Remarks. This genus is widely distributed in tropical and warm-temperate areas of the world, with 16 species hitherto known from the Oriental region ( Czerny 1926 ; Frey 1928 , 1960 ; Sasakawa 1966 , 1993 ). A key to the Oriental and Pacific species of this genus was given by Sasakawa (1966) .