Opinions from A. L. Melander 1949
- 'Acallomyia probolaea belongs to Acallomyia'
- 'Agromyza praecursor belongs to Agromyza'
- 'Alepidophora cockerelli belongs to Alepidophora'
- 'Alepidophora minor belongs to Alepidophora'
- 'Amphicosmus delicatulus belongs to Amphicosmus'
- 'Apolysis magister belongs to Apolysis'
- 'Bibio capnodes belongs to Bibio'
- 'Bibio cockerelli belongs to Bibio'
- 'Bibio excurvatus belongs to Bibio'
- 'Bibio explanatus belongs to Bibio'
- 'Bibio jamesi belongs to Bibio'
- 'Bibio podager belongs to Bibio'
- 'Bibio vetus belongs to Bibio'
- 'Bibio vulcanius belongs to Bibio'
- 'Bibio wickhami belongs to Bibio'
- 'Boletina hypogaea belongs to Boletina'
- 'Chironomus pausatus belongs to Chironomus'
- 'Chironomus primaevus belongs to Chironomus'
- 'Chironomus pristinus belongs to Chironomus'
- 'Chironomus proterus belongs to Chironomus'
- 'Chironomus requiescens belongs to Chironomus'
- 'Chironomus scudderiellus belongs to Chironomus'
- 'Chironomus sepultus belongs to Chironomus'
- 'Cladura integra belongs to Cladura'
- 'Cyttaromyia clathrata belongs to Cyttaromyia'
- 'Dialysis revelata belongs to Dialysis'
- 'Diamesa extincta belongs to Diamesa'
- 'Empis infossa belongs to Empis'
- 'Exechia priscula belongs to Exechia'
- 'Hesperinus immutabilis belongs to Hesperinus'
- 'Hirmoneura melanderi is recombined as Neorhynchocephalus melanderi'
- 'Hirmoneura occultator is recombined as Neorhynchocephalus occultator'
- 'Limnocema marcescens belongs to Limnocema'
- 'Mecistoneuron belongs to Anthomydae'
- 'Mecistoneuron perpetuum belongs to Mecistoneuron'
- 'Melanagromyza prisca belongs to Melanagromyza'
- 'Melanagromyza tephrias belongs to Melanagromyza'
- 'Melanderella testea belongs to Melanderella'
- 'Melieria calligrapha belongs to Melieria'
- 'Moyamyia belongs to Stratiomyiidae'
- 'Moyamyia limigena belongs to Moyamyia'
- 'Mycetaulus incretus belongs to Mycetaulus'
- 'Nebritus willistoni belongs to Nebritus'
- 'Ophyra vetusta belongs to Ophyra'
- 'Penthetria longifurca belongs to Penthetria'
- 'Phora cockerelli belongs to Phora'
- 'Phora laminarum belongs to Phora'
- 'Phora tumbae belongs to Phora'
- 'Platycheirus lethaeus belongs to Platycheirus'
- 'Plecia axeliana is recombined as Hesperinus axelianus'
- 'Plecia gradata belongs to Plecia'
- 'Plecia melanderi is recombined as Hesperinus melanderi'
- 'Plecia orycta belongs to Plecia'
- 'Plecia tessella belongs to Plecia'
- 'Proapemon belongs to Mycetophilidae'
- 'Proapemon infernus belongs to Proapemon'
- 'Protophthiria atra belongs to Protophthiria'
- 'Reichertella belongs to Scatopsidae'
- 'Reichertella fasciata belongs to Reichertella'
- 'Rhagio fossitius belongs to Rhagio'
- 'Rhagio wheeleri belongs to Rhagio'
- 'Rhamphidia faecaria is recombined as Helius faecarius'
- 'Rhamphomyia aeterna belongs to Rhamphomyia'
- 'Rhamphomyia craterae belongs to Rhamphomyia'
- 'Rhamphomyia fossa belongs to Rhamphomyia'
- 'Rhamphomyia inanimata belongs to Rhamphomyia'
- 'Rhamphomyia infernalis belongs to Rhamphomyia'
- 'Rhamphomyia interita belongs to Rhamphomyia'
- 'Rhamphomyia morticina belongs to Rhamphomyia'
- 'Rhamphomyia senecta belongs to Rhamphomyia'
- 'Rhamphomyia spodites belongs to Rhamphomyia'
- 'Rhamphomyia tumulata belongs to Rhamphomyia'
- 'Sapromyza veterana belongs to Sapromyza'
- 'Sciara dormitans belongs to Sciara'
- 'Sciara requieta belongs to Sciara'
- 'Sciara sopora belongs to Sciara'
- 'Senoprosopis eureka belongs to Senoprosopis'
- 'Solva (Xylomya) inornata belongs to Solva (Xylomya)'
- 'Tachypeza primitiva belongs to Tachypeza'
- 'Themira saxifica belongs to Themira'
- 'Tipula florissanta belongs to Tipula'
- 'Tipula heilprini belongs to Tipula'
- 'Tipula lapillescens belongs to Tipula'
- 'Tipula limi belongs to Tipula'
- 'Tipula maclurei belongs to Tipula'
- 'Tipula wilmatteae belongs to Tipula'
- 'Tipulidea distincta belongs to Tipulidea'
- 'Tipulidea distincta belongs to Tipulidea' according to Scudder 1894
- 'Trichoscelis patefacta belongs to Trichoscelis'
- 'Trixoscelis [misspelled as Trichoscelis] belongs to Diptera'
- 'Xylomya was reranked as Solva (Xylomya) and belongs to Solva'