Bactrodes STAL, 1860 Þ Bactrodinae
Baebius STAL, 1865 Þ Stenopodainae
Bagriella McATEE & MALLOCH, 1923 Þ Saicinae
Bagauda BERGROTH, 1903 Þ Leistarchini, Emesinae
Bagaudella MILLER, 1952 Þ Leistarchini, Emesinae
Bagaudina WYGODZINSKY, 1966 Þ Leistarchini, Emesinae
Bakerinia KORMILEV, 1962 Þ Macrocephalini, Phymatinae
Baliemocoris MILLER, 1958 Þ Harpactorini, Harpactorinae
Banarocoris MILLER, 1958 Þ Saicinae
Bannania HSIAO, 1973 Þ Ectrichodiinae
Barce STAL, 1865 Þ Metapterini, Emesinae
Bardesanes DISTANT, 1909 Þ Stenopodainae
Bargylia STAL, 1866 Þ Metapterini, Emesinae
Barlireduvius MALIPATIL, 1988 Þ Dicrotelini, Harpactorinae
Bayerus DISTANT, 1904 Þ Ectrichodiinae
Beanana VILLIERS, 1960 Þ Stenopodainae
Befotaka VILLIERS, 1962 Þ Physoderinae
Beharus AMYOT & SERVILLE, 1843 Þ Apiomerini, Harpactorinae
Bekilya VILLIERS, 1949 Þ Peiratinae
Belemnocoris MILLER, 1952 Þ Stenopodainae
Belminus STAL, 1859 Þ Bolboderini, Triatominae
Belosternella MALDONADO & VAN DOESBURG, 1996 Þ Emesini, Emesinae
Bequaertidea SCHOUTEDEN, 1932 Þ Harpactorini, Harpactorinae
Berengeria GIL-SANTANA & COLETTO-SILVA, 2005 Þ Reduviinae
Bergemesa WYGODZINSKY, 1950 Þ Deliastini, Emesinae
Bergeviniella VILLIERS, 1948 Þ Ectrichodiinae
Bergrothellus MILLER, 1953 Þ Harpactorini, Harpactorinae
Bergrotheus SCHOUTEDEN, 1913 Þ Reduviinae
Berlandiana VILLIERS, 1949 Þ Metapterini, Emesinae
Bettotanocoris MILLER, 1954 Þ Harpactorini, Harpactorinae
Bettyella WYGODZINSKY, 1966 Þ Leistarchini, Emesinae
Bewanicoris MILLER, 1958 Þ Harpactorini, Harpactorinae
Biasticus STAL, 1866 Þ Harpactorini, Harpactorinae
Bironiola HORVATH, 1914 Þ Ploiariolini, Emesinae
Blapton SPINOLA, 1850 Þ Harpactorini, Harpactorinae
Bobba BERGROTH, 1914 Þ Metapterini, Emesinae
Bocatella VILLIERS, 1948 Þ Harpactorini, Harpactorinae
Bolbodera VALDES, 1914 Þ Bolboderini, Triatominae
Borgmeierina WYGODZINSKY, 1949 Þ Ectrichodiinae
Brachysandalus STAL, 1866 Þ Peiratinae
Brachytonus CHINA, 1925 Þ Reduviinae
Brassivola DISTANT, 1904 Þ Harpactorini, Harpactorinae
Breddinia BERGROTH, 1903 Þ Harpactorini, Harpactorinae
Bredo SCHOUTEDEN, 1931 Þ Stenopodainae
Brisbanocoris MILLER, 1957 Þ Ectrichodiinae
Brontostoma KIRKALDY, 1904 Þ Ectrichodiinae
Bubiacoris MILLER, 1959 Þ Harpactorini, Harpactorinae
Bukacoris MILLER, 1958 Þ Harpactorini, Harpactorinae
Buninotus MALDONADO, 1981 Þ Saicinae
Butuanocoris MILLER, 1953 Þ Harpactorini, Harpactorinae