Macrosphenus is a genus of African warblers, formerly placed in the Sylviidae family. The genus is one of two in that family known as longbills. It contains the following species: Grey longbill (Macrosphenus concolor) Yellow longbill (Macrosphenus flavicans) Kemp's longbill (Macrosphenus kempi) Kretschmer's longbill (Macrosphenus kretschmeri) Pulitzer's longbill (Macrosphenus pulitzeri)