Three new species and six new records of Scathophagidae (Diptera) from Japan with a key to the Japanese genera Author Iwasa, Mitsuhiro text Zootaxa 2021 2021-06-08 4981 3 531 553 journal article 5897 10.11646/zootaxa.4981.3.6 e602c4fe-7400-4287-b3f5-62fecf81f369 1175-5326 4921413 6416487B-1776-4BA5-AFB5-6D382C1940D4 Genus Megaphthalma Becker, 1894 [Japanese name: Kiiro-funbae-zoku] Megaphthalma Becker, 1894: 105 . Type-species: Scatomyza pallida Fallén, 1819 , by original designation. Diagnosis. Head yellowish except for eyes; 3 fr , 3 or (1 proclinate, 2 latero-reclinate), 1 oc , 1 poc , 1 vte , 1 vti , vibrissal angle with 1 vibrissa; postpedicel short and rounded apically; palpi slender and clavate; scutum yellow to dark brown; thoracic sclerites yellow; 2 pprn , 2 npl , 1+2 ial , 1+2 sa , 2 pa , 2 +3 dc , 1 dsc ; apsc absent; 1 prepst and 1 prepm ; 4 anepst , 1 kepst ; proepimeron sparsely with yellowish hairs; abdominal tergites yellow; male sternite V prominently bilobate posteriorly; male surstyli long and slender; male cerci clothed with setulae.