| Hylaeus (Abrupta) cornutus Curtis, 1831 | Spined Hylaeus |
| Hylaeus (Alfkenylaeus) stictifrons Cockerell, 1936 | |
| Hylaeus (Analastoroides) foveatus Rayment, 1950 | |
| Hylaeus (Cephalylaeus) basalis Smith, 1853 | Basal Masked Bee |
| Hylaeus (Cephalylaeus) nunenmacheri Bridwell, 1919 | |
| Hylaeus (Cornylaeus) aterrimus Friese, 1911 | |
| Hylaeus (Dentigera) acer Dathe, 1980 | |
| Hylaeus (Dentigera) brachycephalus Morawitz, 1868 | |
| Hylaeus (Dentigera) breviceps Morawitz, 1876 | |
| Hylaeus (Dentigera) brevicornis (Nylander, 1852) | ⇒ Hylaeus brevicornis Nylander, 1852 |
| Hylaeus (Dentigera) conformis Förster, 1871 | |
| Hylaeus (Dentigera) glacialis Morawitz, 1872 | |
| Hylaeus (Dentigera) gredleri Förster, 1871 | |
| Hylaeus (Dentigera) imparilis Förster, 1871 | |
| Hylaeus (Dentigera) intermedius Förster, 1871 | |
| Hylaeus (Dentigera) kahri Förster, 1871 | |
| Hylaeus (Dentigera) longulus Perez, 1903 | |
| Hylaeus (Dentigera) pallidicornis Morawitz, 1876 | |
| Hylaeus (Dentigera) penalaris Dathe, 1979 | |
| Hylaeus (Dentigera) pilosulus Perez, 1903 | |
| Hylaeus (Dentigera) punctus Förster, 1871 | |
| Hylaeus (Dentigera) rubicola (Saunders, 1850) | ⇒ Hylaeus brevicornis Nylander, 1852 |
| Hylaeus (Dentigera) syriacus Alfken, 1936 | |
| Hylaeus (Dentigera) transversalis Cockerell, 1924 | |
| Hylaeus (Deranchylaeus) alfkeni Friese, 1913 | |
| Hylaeus (Deranchylaeus) bequaertianus (Bridwell, 1919) | ⇒ Hylaeus gabonicus Vachal, 1899 |
| Hylaeus (Deranchylaeus) claviger Cockerell, 1936 | |
| Hylaeus (Deranchylaeus) curvicarinatus Cameron, 1905 | |
| Hylaeus (Deranchylaeus) dominae Cockerell, 1936 | |
| Hylaeus (Deranchylaeus) dregei Strand, 1912 | |
| Hylaeus (Deranchylaeus) haygoodi Bridwell, 1919 | |
| Hylaeus (Deranchylaeus) immarginatus (Alfken, 1914) | ⇒ Hylaeus krebsianus Strand, 1912 |
| Hylaeus (Deranchylaeus) lightfooti Bridwell, 1919 | |
| Hylaeus (Deranchylaeus) melanosoma Cockerell, 1920 | |
| Hylaeus (Deranchylaeus) microstictus Cockerell, 1942 | |
| Hylaeus (Deranchylaeus) ogilviei (Cockerell, 1936) | ⇒ Hylaeus gabonicus Vachal, 1899 |
| Hylaeus (Deranchylaeus) perater Cockerell, 1936 | |
| Hylaeus (Deranchylaeus) promontorii Meade-Waldo, 1923 | Grape blossom midge |
| Hylaeus (Deranchylaeus) robertianus Cameron, 1906 | |
| Hylaeus (Deranchylaeus) simulans Cockerell, 1942 | |
| Hylaeus (Deranchylaeus) subreditus Cockerell, 1942 | |
| Hylaeus (Deranchylaeus) tinctulus Cockerell, 1932 | |
| Hylaeus (Deranchylaeus) varians Cockerell, 1936 | |
| Hylaeus (Deranchylaeus) xanthostoma Alfken, 1914 | |
| Hylaeus (Edriohylaeus) ofarrelli Michener, 1965 | Mountain cave amphipod |
| Hylaeus (Euprosopellus) certus (Cockerell, 1921) | ⇒ Hylaeus illinoisensis Robertson, 1896 |
| Hylaeus (Euprosopellus) chrysaspis Cockerell, 1910 | |
| Hylaeus (Euprosopellus) dromedarius Cockerell, 1910 | |
| Hylaeus (Euprosopellus) pergibbosus Cockerell, 1926 | |
| Hylaeus (Euprosopis) disjunctus Cockerell, 1905 | |
| Hylaeus (Euprosopis) elegans Smith, 1853 | Neighbor tagelus |
| Hylaeus (Euprosopis) honestus Smith, 1879 | |
| Hylaeus (Euprosopis) husela Cockerell, 1910 | |
| Hylaeus (Euprosopis) violaceus Smith, 1853 | Neighbor tagelus |
| Hylaeus (Euprosopoides) amatus Cockerell, 1909 | |
| Hylaeus (Euprosopoides) cyanurus Kirby, 1802 | |
| Hylaeus (Euprosopoides) dromedarius Cockerell, 1910 | |
| Hylaeus (Euprosopoides) musgravei Cockerell, 1929 | |
| Hylaeus (Euprosopoides) obtusatus Smith, 1879 | |
| Hylaeus (Euprosopoides) perplexus Smith, 1854 | |
| Hylaeus (Euprosopoides) rotundiceps Smith, 1879 | |
| Hylaeus (Euprosopoides) ruficeps Smith, 1853 | Neighbor tagelus |
| Hylaeus ruficeps kalamundae Cockerell, 1915 | |
| Hylaeus ruficeps ruficeps | |
| Hylaeus (Gephyrohylaeus) sculptus Cockerell, 1911 | |
| Hylaeus (Gnathoprosopis) albonitens Cockerell, 1905 | Colletid bee |
| Hylaeus (Gnathoprosopis) amiculiformis Cockerell, 1909 | |
| Hylaeus (Gnathoprosopis) amiculinus Cockerell, 1922 | |
| Hylaeus (Gnathoprosopis) amiculus Smith, 1879 | |
| Hylaeus (Gnathoprosopis) chromaticus Cockerell, 1912 | |
| Hylaeus (Gnathoprosopis) euxanthus Cockerell, 1910 | |
| Hylaeus (Gnathoprosopis) theodorei Cockerell, 1910 | |
| Hylaeus (Gnathoprosopoides) bituberculatus Smith, 1879 | |
| Hylaeus (Gnathoprosopoides) philoleucus Cockerell, 1910 | |
| Hylaeus (Heterapoides) bacillarius Cockerell, 1914 | |
| Hylaeus (Heterapoides) delicatus Cockerell, 1911 | |
| Hylaeus (Heterapoides) digitatus Houston, 1975 | |
| Hylaeus (Heterapoides) exleyae Houston, 1975 | |
| Hylaeus (Heterapoides) extensus Cockerell, 1916 | |
| Hylaeus (Heterapoides) halictiformis Perkins, 1912 | |
| Hylaeus (Heterapoides) leviceps Houston, 1975 | |
| Hylaeus (Heterapoides) nigriconcavus Houston, 1975 | |
| Hylaeus (Hylaeana) aztecus Cresson, 1869 | |
| Hylaeus (Hylaeana) graenicheri Mitchell, 1951 | Graenicher´s Masked Bee |
| Hylaeus (Hylaeana) knabi Cockerell, 1918 | |
| Hylaeus (Hylaeana) panamensis Michener, 1954 | Long-legged cave amphipod |
| Hylaeus (Hylaeopsis) bertonii Schrottky, 1907 | |
| Hylaeus (Hylaeopsis) coroicensis Cockerell, 1918 | |
| Hylaeus (Hylaeopsis) crustatus Vachal, 1909 | |
| Hylaeus (Hylaeopsis) flavohumeralis Cockerell, 1918 | |
| Hylaeus (Hylaeopsis) gualanicus Cockerell, 1912 | |
| Hylaeus (Hylaeopsis) guaraniticus Schrottky, 1906 | |
| Hylaeus (Hylaeopsis) itapuensis Schrottky, 1906 | |
| Hylaeus (Hylaeopsis) subgriseus Cockerell, 1918 | |
| Hylaeus (Hylaeopsis) zamoranicus Cockerell, 1949 | |
| Hylaeus (Hylaeorhiza) nubilosus Smith, 1853 | Neighbor tagelus |
| Hylaeus (Hylaeteron) douglasi Michener, 1965 | Mountain cave amphipod |
| Hylaeus (Hylaeteron) hemirhodus Michener, 1965 | Mountain cave amphipod |
| Hylaeus (Hylaeteron) riekianus Houston, 1981 | |
| Hylaeus (Hylaeteron) semirufus Cockerell, 1914 | |
| Hylaeus (Hylaeus) adriaticus Warncke, 1972 | |
| Hylaeus (Hylaeus) angustatus Schenck, 1861 | |
| Hylaeus (Hylaeus) annulatus Linnaeus, 1758 | Annulate Masked Bee |
| Hylaeus (Hylaeus) araxanus Warncke, 1981 | |
| Hylaeus (Hylaeus) cardioscapus Сockerell, 1924 | |
| Hylaeus (Hylaeus) communis Nylander, 1852 | Common Yellow Face Bee |
| Hylaeus communis communis | |
| Hylaeus communis deceptorius Benoist, 1959 | |
| Hylaeus (Hylaeus) conspicuus Metz, 1911 | |
| Hylaeus (Hylaeus) crispulus Dathe, 1980 | |
| Hylaeus (Hylaeus) difformis Eversmann, 1852 | |
| Hylaeus (Hylaeus) dolichocephalus Morawitz, 1876 | |
| Hylaeus (Hylaeus) fedtschenkoi Cockerell, 1906 | |
| Hylaeus (Hylaeus) gracilicornis Morawitz, 1867 | |
| Hylaeus (Hylaeus) hameri Dathe, 1995 | Douglas-fir cone gall midge |
| Hylaeus (Hylaeus) hellenicus Dathe, 2000 | |
| Hylaeus (Hylaeus) ibericus Dathe, 2000 | |
| Hylaeus (Hylaeus) koenigsmanni Dathe, 1981 | |
| Hylaeus (Hylaeus) kotschisus Warncke, 1981 | |
| Hylaeus (Hylaeus) labiatifrons Cockerell, 1896 | |
| Hylaeus (Hylaeus) leptocephalus Morawitz, 1870 | Slender-faced Masked Bee |
| Hylaeus (Hylaeus) maritimus Bridwell, 1910 | |
| Hylaeus (Hylaeus) mesillae Cockerell, 1896 | Mesilla Masked Bee |
| Hylaeus mesillae cressoni Cockerell, 1907 | Cresson'S Masked Bee |
| Hylaeus (Hylaeus) moricei Friese, 1898 | |
| Hylaeus (Hylaeus) niger Bridwell, 1919 | |
| Hylaeus (Hylaeus) nigritus Fabricius, 1798 | |
| Hylaeus (Hylaeus) nivaliformis Dathe, 1977 | Chokecherry midge |
| Hylaeus (Hylaeus) nivalis Morawitz, 1867 | |
| Hylaeus (Hylaeus) paulus Bridwell, 1919 | |
| Hylaeus (Hylaeus) pyrenaicus Dathe, 2000 | |
| Hylaeus (Hylaeus) rudbeckiae Cockerell & ..., 1895 | |
| Hylaeus (Hylaeus) saniculae Robertson, 1896 | |
| Hylaeus (Hylaeus) scutellaris Morawitz, 1873 | |
| Hylaeus (Hylaeus) sejunctus Snelling, 1970 | |
| Hylaeus (Hylaeus) sidensis Warncke, 1981 | |
| Hylaeus (Hylaeus) styriacus Förster, 1871 | |
| Hylaeus (Hylaeus) tardus Warncke, 1981 | |
| Hylaeus (Hylaeus) trifidus Alfken, 1936 | |
| Hylaeus (Hylaeus) tyrolensis Förster, 1871 | |
| Hylaeus (Hylaeus) verticalis Cresson, 1869 | Vertical Masked Bee |
| Hylaeus (Koptogaster) bifasciatus Jurine, 1807 | |
| Hylaeus (Koptogaster) punctulatissimus Smith, 1842 | Conrad thracia |
| Hylaeus (Koptogaster) tetris Dathe, 2000 | |
| Hylaeus (Laccohylaeus) cyanophilus Cockerell, 1910 | |
| Hylaeus (Lambdopsis) annularis (Kirby, 1802) | ⇒ Hylaeus annularis Kirby, 1802 |
| Hylaeus (Lambdopsis) crassanus Warncke, 1972 | |
| Hylaeus (Lambdopsis) dilatatus (Kirby, 1802) | ⇒ Hylaeus annularis Kirby, 1802 |
| Hylaeus (Lambdopsis) euryscapus Förster, 1871 | |
| Hylaeus euryscapus euryscapus Förster, 1856 | |
| Hylaeus euryscapus spilotus Foerster, 1871 | |
| Hylaeus (Lambdopsis) ikedai Yasumatsu, 1936 | Sunflower midge |
| Hylaeus (Lambdopsis) nipponicus (Bridwell, 1919) | ⇒ Hylaeus pfankuchi Alfken, 1919 |
| Hylaeus (Lambdopsis) pfankuchi Alfken, 1919 | Douglas-fir cone scale midge |
| Hylaeus (Lambdopsis) rinki Gorski, 1852 | |
| Hylaeus (Lambdopsis) scutellatus Spinola, 1838 | |
| Hylaeus (Lamdopsis) annularis Kirby, 1802 | |
| Hylaeus (Lamdopsis) spilotus Förster, 1871 | |
| Hylaeus (Macrohylaeus) alcyoneus Erichson, 1842 | Banksia bee |
| Hylaeus (Meghylaeus) fijiensis Cockerell, 1909 | |
| Hylaeus (Mehelyana) friesei Alfken, 1904 | |
| Hylaeus (Metylaeus) cribratus Bridwell, 1919 | |
| Hylaeus (Metylaeus) mahafaly Hensen, 1987 | |
| Hylaeus (Metziella) sparsus Cresson, 1869 | Broad-Faced Masked Bee |
| Hylaeus (Nesoprosopis) anomalus Perkins, 1899 | Anomalous yellow-faced bee |
| Hylaeus (Nesoprosopis) anthracinus Smith, 1853 | Neighbor tagelus |
| Hylaeus (Nesoprosopis) chlorostictus Perkins, 1899 | Boreal Whiteface |
| Hylaeus (Nesoprosopis) connectens Perkins, 1899 | Boreal Whiteface |
| Hylaeus (Nesoprosopis) difficilis Perkins, 1899 | Boreal Whiteface |
| Hylaeus (Nesoprosopis) facilis Smith, 1879 | Easy yellow-faced bee |
| Hylaeus (Nesoprosopis) floralis Smith, 1873 | |
| Hylaeus (Nesoprosopis) fuscipennis Smith, 1879 | |
| Hylaeus (Nesoprosopis) hirsutulus Perkins, 1899 | Boreal Whiteface |
| Hylaeus (Nesoprosopis) hostilis Perkins, 1899 | Boreal Whiteface |
| Hylaeus (Nesoprosopis) pectoralis Förster, 1871 | |
| Hylaeus (Nesoprosopis) pubescens Perkins, 1899 | Boreal Whiteface |
| Hylaeus (Nesoprosopis) sphecodoides Perkins, 1899 | Boreal Whiteface |
| Hylaeus (Nesoprosopis) volatilis Smith, 1879 | |
| Hylaeus (Nothylaeus) braunsi Alfken, 1905 | |
| Hylaeus (Nothylaeus) fumatus Strand, 1912 | |
| Hylaeus (Nothylaeus) heraldicus Smith, 1853 | Neighbor tagelus |
| Hylaeus (Nothylaeus) junodi (Friese, 1911) | ⇒ Hylaeus rufipedoides Strand, 1911 |
| Hylaeus (Nothylaeus) malagassus Benoist, 1945 | |
| Hylaeus (Paraprosopis) albonotatus Walker, 1871 | |
| Hylaeus (Paraprosopis) asininus Cockerell & ..., 1895 | |
| Hylaeus (Paraprosopis) ater Saunders, 1903 | |
| Hylaeus (Paraprosopis) azorae Warncke, 1992 | |
| Hylaeus (Paraprosopis) calvus Metz, 1911 | Bald Masked Bee |
| Hylaeus (Paraprosopis) canariensis Erlandsson, 1983 | |
| Hylaeus (Paraprosopis) clypearis (Schenck, 1853) | ⇒ Lasioglossum clypeare Schenck, 1853 |
| Hylaeus (Paraprosopis) coloradensis Cockerell, 1896 | |
| Hylaeus (Paraprosopis) dinkleri Friese, 1898 | |
| Hylaeus (Paraprosopis) donbakeri Dathe, 1995 | Douglas-fir cone gall midge |
| Hylaeus (Paraprosopis) elatus Warncke, 1981 | |
| Hylaeus (Paraprosopis) emir Dathe, 2000 | |
| Hylaeus (Paraprosopis) georgicus Cockerell, 1898 | |
| Hylaeus (Paraprosopis) gribodoi Vachal, 1895 | |
| Hylaeus (Paraprosopis) gujaraticus Nurse, 1903 | |
| Hylaeus (Paraprosopis) hohmanni Dathe, 1993 | |
| Hylaeus (Paraprosopis) krombeini Snelling, 1980 | |
| Hylaeus (Paraprosopis) lineolatus Schenck, 1861 | |
| Hylaeus (Paraprosopis) lunicraterius Snelling, 1970 | |
| Hylaeus (Paraprosopis) maderensis Cockerell, 1921 | |
| Hylaeus (Paraprosopis) megalotis Swenk & Cock..., 1910 | |
| Hylaeus (Paraprosopis) nevadensis Cockerell, 1896 | |
| Hylaeus (Paraprosopis) omanicus Dathe, 1995 | Douglas-fir cone gall midge |
| Hylaeus (Paraprosopis) personatellus Cockerell, 1915 | |
| Hylaeus (Paraprosopis) pictipes Nylander, 1852 | Colletid bee |
| Hylaeus (Paraprosopis) polifolii Cockerell, 1901 | |
| Hylaeus (Paraprosopis) sinuatus (Schenck, 1853) | ⇒ Hylaeus gribodoi Vachal, 1895 |
| Hylaeus sinuatus gribodoi Vachal, 1895 | |
| Hylaeus sinuatus sinuatus | |
| Hylaeus (Paraprosopis) sonorensis Cockerell, 1924 | |
| Hylaeus (Paraprosopis) soror Perez, 1903 | |
| Hylaeus (Paraprosopis) styriacus Förster, 1871 | |
| Hylaeus (Paraprosopis) taeniolatus Förster, 1871 | |
| Hylaeus (Paraprosopis) wootoni Cockerell, 1896 | |
| Hylaeus (Paraprosopis) xanthopoda Vachal, 1895 | |
| Hylaeus (Paraprosopis) yasumatsui Snelling, 1970 | |
| Hylaeus (Patagiata) nigrocuneatus (Cockerell, 1924) | ⇒ Hylaeus difformis Eversmann, 1852 |
| Hylaeus (Planihylaeus) daviesiae Houston, 1981 | |
| Hylaeus (Planihylaeus) jacksoniae Houston, 1981 | |
| Hylaeus (Planihylaeus) probligenatus Houston, 1981 | |
| Hylaeus (Planihylaeus) quadriceps Smith, 1879 | |
| Hylaeus (Planihylaeus) trilobatus Cockerell, 1910 | |
| Hylaeus (Prosopis) absolutus Gribodo, 1894 | |
| Hylaeus (Prosopis) affinis Smith, 1853 | Eastern Masked Bee |
| Hylaeus (Prosopis) alexandrinus Warncke, 1992 | |
| Hylaeus (Prosopis) bipunctatus (Fabricius, 1798) | ⇒ Lasioglossum calceatum Scopoli, 1763 |
| Hylaeus (Prosopis) brevicornis Nylander, 1852 | |
| Hylaeus (Prosopis) confluens Smith, 1853 | Neighbor tagelus |
| Hylaeus (Prosopis) confusus Nylander, 1852 | White-Jawed Yellow-Face |
| Hylaeus (Prosopis) convergens Dathe, 2000 | |
| Hylaeus (Prosopis) coriaceus Perez, 1895 | |
| Hylaeus (Prosopis) duckei Alfken, 1904 | |
| Hylaeus (Prosopis) episcopalis Cockerell, 1896 | |
| Hylaeus episcopalis coquilletti | Coquillett´s Yellow-masked Bee |
| Hylaeus (Prosopis) garrulus Warncke, 1981 | |
| Hylaeus (Prosopis) gazagnairei Vachal, 1891 | |
| Hylaeus (Prosopis) gibbus Saunders, 1850 | |
| Hylaeus (Prosopis) incongruus Förster, 1871 | White-lipped yellow-face bee |
| Hylaeus (Prosopis) laevithorax Alfken, 1924 | |
| Hylaeus (Prosopis) lateralis Smith, 1879 | |
| Hylaeus (Prosopis) maculatus Alfken, 1904 | |
| Hylaeus (Prosopis) matsumurae | |
| Hylaeus (Prosopis) meridionalis Förster, 1871 | |
| Hylaeus (Prosopis) modestus Say, 1837 | Modest Masked Bee |
| Hylaeus (Prosopis) nelumbonis Robertson, 1890 | Nelumbo Masked Bee |
| Hylaeus (Prosopis) opaciventris Friese, 1925 | |
| Hylaeus (Prosopis) orientalicus Warncke, 1981 | |
| Hylaeus (Prosopis) ornatus Mitchell, 1951 | |
| Hylaeus (Prosopis) pectoralis Förster, 1871 | Reed yellow-face bee |
| Hylaeus (Prosopis) pictus (Smith, 1853) | ⇒ Hylaeus pictulus Michener, 1965 |
| Hylaeus (Prosopis) praenotatus Förster, 1871 | |
| Hylaeus (Prosopis) rugicollis Morawitz, 1873 | |
| Hylaeus (Prosopis) rugulosus Perkins, 1899 | Boreal Whiteface |
| Hylaeus (Prosopis) schwarzii Cockerell, 1896 | Schwarz'S Masked Bee |
| Hylaeus (Prosopis) signatus Panzer, 1798 | Large yellow-face bee |
| Hylaeus (Prosopis) teruelus Warncke, 1981 | |
| Hylaeus (Prosopis) transvittatus Cockerell, 1917 | |
| Hylaeus (Prosopis) trinotatus Perez, 1895 | |
| Hylaeus (Prosopis) tuertonis Cockerell, 1906 | |
| Hylaeus (Prosopis) variegatus Fabricius, 1798 | Masked bee |
| Hylaeus variegatus analis Fabricius, 1804 | |
| Hylaeus variegatus coriaceus Perez, 1895 | |
| Hylaeus variegatus variegatus | |
| Hylaeus (Prosopis) volusiensis Mitchell, 1951 | |
| Hylaeus (Prosopisteron) accipitris Cockerell, 1914 | |
| Hylaeus (Prosopisteron) agilis Smith, 1876 | Purplish tagelus |
| Hylaeus (Prosopisteron) albozebratus Michener, 1965 | Mountain cave amphipod |
| Hylaeus (Prosopisteron) amatulus Cockerell, 1922 | |
| Hylaeus (Prosopisteron) aralis Cockerell, 1916 | |
| Hylaeus (Prosopisteron) asperithorax Rayment, 1927 | |
| Hylaeus (Prosopisteron) auriferus Cockerell, 1918 | |
| Hylaeus (Prosopisteron) basilautus Rayment, 1953 | |
| Hylaeus (Prosopisteron) baudinensis Cockerell, 1905 | |
| Hylaeus (Prosopisteron) bicoloratus Smith, 1853 | Neighbor tagelus |
| Hylaeus (Prosopisteron) bicuneatus Cockerell, 1910 | |
| Hylaeus (Prosopisteron) bidentatus Smith, 1853 | Neighbor tagelus |
| Hylaeus (Prosopisteron) brevior Cockerell, 1918 | |
| Hylaeus (Prosopisteron) burnsi Michener, 1965 | |
| Hylaeus (Prosopisteron) capitosus Smith, 1876 | Purplish tagelus |
| Hylaeus (Prosopisteron) chlorosoma Cockerell, 1913 | |
| Hylaeus (Prosopisteron) chlorosomus Cockerell, 1913 | |
| Hylaeus (Prosopisteron) cliffordiellus Rayment, 1953 | |
| Hylaeus (Prosopisteron) crassifemoratus Cockerell, 1922 | |
| Hylaeus (Prosopisteron) cyaneomicans Cockerell, 1910 | |
| Hylaeus (Prosopisteron) distractus Cockerell, 1914 | |
| Hylaeus (Prosopisteron) eugeniellus Cockerell, 1910 | |
| Hylaeus (Prosopisteron) flavojugatus Cockerell, 1912 | |
| Hylaeus (Prosopisteron) frederici Cockerell, 1905 | |
| Hylaeus (Prosopisteron) greavesi Rayment, 1935 | |
| Hylaeus (Prosopisteron) hobartiellus Cockerell, 1929 | |
| Hylaeus (Prosopisteron) innocens Cameron, 1898 | |
| Hylaeus (Prosopisteron) kermadecensis Donovan, 2007 | |
| Hylaeus (Prosopisteron) leai Cockerell, 1912 | |
| Hylaeus (Prosopisteron) littleri Cockerell, 1918 | |
| Hylaeus (Prosopisteron) matamoko Donovan, 2007 | |
| Hylaeus (Prosopisteron) mediovirens Cockerell, 1913 | |
| Hylaeus (Prosopisteron) microphenax Cockerell, 1910 | |
| Hylaeus (Prosopisteron) minusculus Cockerell, 1913 | |
| Hylaeus (Prosopisteron) murihiku Donovan, 2007 | |
| Hylaeus (Prosopisteron) nigrescens Cockerell, 1918 | |
| Hylaeus (Prosopisteron) perhumilis Cockerell, 1914 | |
| Hylaeus (Prosopisteron) primulipictus Cockerell, 1905 | |
| Hylaeus (Prosopisteron) quadratus Smith, 1853 | Neighbor tagelus |
| Hylaeus (Prosopisteron) relegatus Smith, 1876 | Purplish tagelus |
| Hylaeus (Prosopisteron) sanguinipictus Cockerell, 1914 | |
| Hylaeus (Prosopisteron) scintillans Cockerell, 1922 | |
| Hylaeus (Prosopisteron) scintilliformis Cockerell, 1913 | |
| Hylaeus (Prosopisteron) scintillus Cockerell, 1912 | |
| Hylaeus (Prosopisteron) semipersonatus Cockerell, 1929 | |
| Hylaeus (Prosopisteron) serotinellus Cockerell, 1906 | |
| Hylaeus (Prosopisteron) simplus Houston, 1993 | |
| Hylaeus (Prosopisteron) subcoronatus Rayment, 1935 | |
| Hylaeus (Prosopisteron) trimerops Cockerell, 1916 | |
| Hylaeus (Prosopisteron) turgicollaris Michener, 1965 | Mountain cave amphipod |
| Hylaeus (Prosopisteron) vittatifrons Cockerell, 1913 | |
| Hylaeus (Prosopisteron) wilsoni Rayment, 1928 | |
| Hylaeus (Prosopisteron) woyensis Rayment, 1939 | |
| Hylaeus (Prosopisteron) wynyardensis Cockerell, 1929 | |
| Hylaeus (Prosopisteron) xanthaspis Cockerell, 1910 | |
| Hylaeus (Prosopisteron) xanthopsyche Cockerell, 1922 | |
| Hylaeus (Pseudhylaeus) albocuneatus Cockerell, 1913 | |
| Hylaeus (Pseudhylaeus) albomaculatus Smith, 1879 | |
| Hylaeus (Pseudhylaeus) hypoleucus Cockerell, 1918 | |
| Hylaeus (Pseudhylaeus) mirandus Rayment, 1930 | |
| Hylaeus (Pseudhylaeus) multigibbosus Michener, 1965 | Mountain cave amphipod |
| Hylaeus (Rhodohylaeus) ancoratus Cockerell, 1912 | |
| Hylaeus (Rhodohylaeus) ceniberus Cockerell, 1910 | |
| Hylaeus (Rhodohylaeus) constrictiformis Cockerell, 1910 | |
| Hylaeus (Rhodohylaeus) constrictus Cockerell, 1905 | |
| Hylaeus (Rhodohylaeus) coronatulus Cockerell, 1914 | |
| Hylaeus (Rhodohylaeus) coronatus Cockerell, 1905 | |
| Hylaeus (Rhodohylaeus) indecisus Cockerell, 1929 | |
| Hylaeus (Rhodohylaeus) lateralis Smith, 1879 | |
| Hylaeus (Rhodohylaeus) maiellus Rayment, 1935 | |
| Hylaeus (Rhodohylaeus) melanocephalus Cockerell, 1922 | |
| Hylaeus (Rhodohylaeus) perrufus Cockerell, 1929 | |
| Hylaeus (Rhodohylaeus) proximus Smith, 1879 | |
| Hylaeus (Rhodohylaeus) rufipes Smith, 1853 | Neighbor tagelus |
| Hylaeus (Rhodohylaeus) semicastaneus Cockerell, 1918 | |
| Hylaeus (Spatulariella) adspersus Alfken, 1935 | |
| Hylaeus (Spatulariella) alpinus Morawitz, 1867 | |
| Hylaeus (Spatulariella) armeniacus Warncke, 1981 | |
| Hylaeus (Spatulariella) cypricola Warncke, 1972 | |
| Hylaeus (Spatulariella) fossifer Dathe, 1995 | Douglas-fir cone gall midge |
| Hylaeus (Spatulariella) hyalinatus (Smith, 1842) | ⇒ Hylaeus milossa Warncke, 1981 |
| Hylaeus hyalinatus hyalinatus | |
| Hylaeus hyalinatus montebovensis Pittioni, 1950 | |
| Hylaeus (Spatulariella) hyperpunctatus Strand, 1909 | |
| Hylaeus hyperpunctatus helenae Pittioni, 1950 | |
| Hylaeus hyperpunctatus hyperpunctatus | |
| Hylaeus hyperpunctatus subhyalinatus Pittioni, 1950 | |
| Hylaeus (Spatulariella) iranicus Dathe, 1980 | |
| Hylaeus (Spatulariella) longimaculus Alfken, 1936 | |
| Hylaeus (Spatulariella) punctatus Brullé, 1832 | Punctate Masked Bee |
| Hylaeus (Spatulariella) sulphuripes Gribodo, 1894 | |
| Hylaeus (Sphaerhylaeus) bicolorellus Michener, 1965 | Mountain cave amphipod |
| Hylaeus (Sphaerhylaeus) globuliferus Cockerell, 1929 | Woolybush Bee |
| Hylaeus (Xenohylaeus) desertoris Houston, 1981 | |
| Hylaeus (Xenohylaeus) kelvini Cockerell, 1912 | |
| Hylaeus (Xenohylaeus) leptospermi Cockerell, 1922 | |
| Hylaeus (Xenohylaeus) scutaticornis Michener, 1965 | Mountain cave amphipod |
| Hylaeus aberrans Bridwell, 1919 | |
| Hylaeus abjunctus Cockerell, 1936 | |
| Hylaeus aborigensis Dathe, 1994 | |
| Hylaeus absonulus Cockerell, 1936 | |
| Hylaeus abyssinicus Alfken, 1905 | |
| Hylaeus acariphorus Snelling, 1985 | |
| Hylaeus adamauanis Dathe, 0 | |
| Hylaeus aenigmus Viereck, 1903 | |
| Hylaeus akoko Daly & Magnacca, 2003 | |
| Hylaeus alampes Moure, 1942 | |
| Hylaeus alocaspidus Snelling, 1975 | |
| Hylaeus amatiformis (Cockerell, 1929) | ⇒ Hylaeus obtusatus Smith, 1879 |
| Hylaeus amazonicus Gribodo, 1894 | |
| Hylaeus ambigua Foerster, 1871 | |
| Hylaeus ameliae Cockerell, 1942 | |
| Hylaeus amharicus Dathe, 2014 | |
| Hylaeus andrenoides Perkins, 1899 | Boreal Whiteface |
| Hylaeus angustifrons (Morawitz, 1876) | ⇒ Hylaeus communis Nylander, 1852 |
| Hylaeus angustulus Perkins, 1899 | Boreal Whiteface |
| Hylaeus anmelanocephalus Rayment, 1954 | |
| Hylaeus arenarius Morawitz, 1876 | |
| Hylaeus arnoldi (Friese, 1913) | ⇒ Amphylaeus obscuriceps Friese, 1924 |
| Hylaeus arsenicus Vachal, 1901 | |
| Hylaeus asiaticus Dalla Torre, 1896 | |
| Hylaeus asper Vachal, 1909 | |
| Hylaeus aspricollis Vachal, 1901 | |
| Hylaeus assimulans Perkins, 1899 | Boreal Whiteface |
| Hylaeus atriceps Friese, 1911 | |
| Hylaeus atripes Vachal, 1901 | |
| Hylaeus basirufus Vachal, 1910 | |
| Hylaeus benoisti Michener, 2000 | |
| Hylaeus bequaerti Schrottky, 1910 | |
| Hylaeus bernhardi Dathe, 2014 | |
| Hylaeus bevisi Cockerell, 1917 | |
| Hylaeus binotatus Alfken, 1914 | |
| Hylaeus binus Vachal, 1909 | |
| Hylaeus biscutellus Vachal, 1909 | |
| Hylaeus bisinuatus (Förster, 1871) | ⇒ Hylaeus leptocephalus Morawitz, 1870 |
| Hylaeus blanchae Rayment, 1953 | |
| Hylaeus bolivianus Schrottky, 1910 | |
| Hylaeus borchii Rayment, 1935 | |
| Hylaeus bothros Schrottky, 1910 | |
| Hylaeus bouyssoui Vachal, 1899 | |
| Hylaeus brachycephala Morawitz, 1868 | |
| Hylaeus brachyceratomerus Moure, 1941 | |
| Hylaeus brasiliensis Schrottky, 1910 | |
| Hylaeus breviradia Vachal, 1901 | |
| Hylaeus breviradius Vachal, 1901 | |
| Hylaeus bridwelli Ikudome, 1989 | |
| Hylaeus caarendyensis Schrottky, 1906 | |
| Hylaeus callosulus Meade-Waldo, 1923 | Grape blossom midge |
| Hylaeus callosus Cockerell, 1910 | |
| Hylaeus camerunensis Dathe, 2014 | |
| Hylaeus capicola Alfken, 1914 | |
| Hylaeus cecidonastes Moure, 1972 | |
| Hylaeus chimani Dathe, 2014 | |
| Hylaeus clavigerus Cockerell, 1936 | |
| Hylaeus cockerelli Schrottky, 1906 | |
| Hylaeus colei Rayment, 1935 | |
| Hylaeus coniceps Blackburn, 1886 | Boxelder leaf gall midge |
| Hylaeus conspicua Metz, 1911 | |
| Hylaeus convexiusculum Schenck, 1853 | |
| Hylaeus cookii Metz, 1911 | |
| Hylaeus costaricensis Friese, 1917 | |
| Hylaeus crabronoides Perkins, 1899 | Boreal Whiteface |
| Hylaeus cribellatus Vachal, 1901 | |
| Hylaeus cruentus Vachal, 1910 | |
| Hylaeus culiciformis Schrottky, 1906 | |
| Hylaeus curtellus Moure, 1960 | |
| Hylaeus curtulus Vachal, 1910 | |
| Hylaeus cuscoanus Strand, 1911 | |
| Hylaeus dentiferellus Strand, 1912 | |
| Hylaeus dictyotus Snelling, 1982 | Many-colored tellin |
| Hylaeus dimidiatus Perkins, 1899 | Boreal Whiteface |
| Hylaeus diplonymus Schulz, 1906 | Mealybug destroyer |
| Hylaeus dubiosus Cresson, 1869 | |
| Hylaeus dumetorum Perkins, 1899 | Boreal Whiteface |
| Hylaeus eardleyi Dathe, 2014 | |
| Hylaeus elliptica Kirby, 1837 | |
| Hylaeus ellipticus (Kirby, 1837) | ⇒ Hylaeus annulatus Linnaeus, 1758 |
| Hylaeus elongatus Smith, 1879 | |
| Hylaeus euphorbiae Dathe, 0 | |
| Hylaeus exiguus Schrottky, 1902 | |
| Hylaeus expansus Vachal, 1909 | |
| Hylaeus extensicornis Cockerell, 1936 | |
| Hylaeus extrinsecus Snelling, 1982 | Many-colored tellin |
| Hylaeus fardus | |
| Hylaeus fedorica Cockerell, 1909 | |
| Hylaeus femoralis Schrottky, 1902 | |
| Hylaeus filicum Perkins, 1911 | |
| Hylaeus fissus Vachal, 1901 | |
| Hylaeus flammipes Robertson, 1893 | |
| Hylaeus flavifrons W. F. Kirby, 1880 | Pear midge |
| Hylaeus flavipes Smith, 1853 | Neighbor tagelus |
| Hylaeus flaviscutum Alfken, 1914 | |
| Hylaeus floridanus Robertson, 1893 | |
| Hylaeus formosus Krombein, 1953 | |
| Hylaeus fortis Cockerell, 1936 | |
| Hylaeus fossisternis Vachal, 1909 | |
| Hylaeus fuliginosus Warncke, 1970 | |
| Hylaeus fulvicrus Eversmann, 1852 | |
| Hylaeus fumata Strand, 1912 | |
| Hylaeus gabonicus Vachal, 1899 | |
| Hylaeus gaigei Cockerell, 1916 | |
| Hylaeus gaullei Vachal, 1899 | |
| Hylaeus geminus (Vachal, 1910) | ⇒ Lasioglossum interruptum Panzer, 1798 |
| Hylaeus genualis Vachal, 1909 | |
| Hylaeus georgica Cockerell, 1898 | |
| Hylaeus gessianus Dathe, 2014 | |
| Hylaeus gibbonsi (Cockerell, 1929) | ⇒ Hylaeus kelvini Cockerell, 1912 |
| Hylaeus gigas Friese, 1911 | |
| Hylaeus globula Vachal, 1903 | |
| Hylaeus gnathylaeoides | |
| Hylaeus graaffi Cockerell, 1936 | |
| Hylaeus gracillimus Schrottky, 1902 | |
| Hylaeus granulatus Metz, 1911 | |
| Hylaeus grossus Cresson, 1869 | |
| Hylaeus guamensis Cockerell, 1914 | |
| Hylaeus haematopodus Cockerell, 1913 | |
| Hylaeus haemorrhous Benoist, 1946 | |
| Hylaeus haladanius Dathe, 0 | |
| Hylaeus haleakalae Perkins, 1899 | Boreal Whiteface |
| Hylaeus hermonus Warncke, 1981 | |
| Hylaeus hilaris Smith, 1879 | |
| Hylaeus hirashimai Ikudome, 1989 | |
| Hylaeus hula Perkins, 1911 | |
| Hylaeus hungaricus Alfken, 1905 | |
| Hylaeus hurdi Snelling, 1966 | |
| Hylaeus huselus Cockerell, 1910 | |
| Hylaeus hydrangeae | |
| Hylaeus hydrophilus Schrottky, 1906 | |
| Hylaeus hyrcanius Dathe, 1980 | |
| Hylaeus iheringi Schrottky, 1910 | |
| Hylaeus illinoisensis Robertson, 1896 | |
| Hylaeus incomitatus Snelling, 1970 | |
| Hylaeus incompletus Alfken, 1936 | |
| Hylaeus infans Cockerell, 1910 | |
| Hylaeus infulatus Snelling, 1985 | |
| Hylaeus inquilina Perkins, 1899 | Boreal Whiteface |
| Hylaeus insolitus Snelling, 1966 | |
| Hylaeus insularum Yasumatsu & ..., 1965 | |
| Hylaeus iridipennis Schrottky, 1906 | |
| Hylaeus isochromus Cockerell, 1936 | |
| Hylaeus izikosalis Dathe, 2014 | |
| Hylaeus joergenseni Schrottky, 1906 | |
| Hylaeus kasindensis Cockerell, 1936 | |
| Hylaeus kauaiensis Perkins, 1899 | Boreal Whiteface |
| Hylaeus kokeensis Daly & Magnacca, 2003 | |
| Hylaeus kona Blackburn, 1886 | Boxelder leaf gall midge |
| Hylaeus krebsianus Strand, 1912 | |
| Hylaeus kuakea Daly & Magnacca, 2003 | |
| Hylaeus kukui Daly & Magnacca, 2003 | |
| Hylaeus lactiferus Cockerell, 1910 | |
| Hylaeus laetus Perkins, 1899 | Boreal Whiteface |
| Hylaeus larocai Moure, 1972 | |
| Hylaeus lativentris Schenck, 1853 | |
| Hylaeus lemuriae Benoist, 1945 | |
| Hylaeus lepidulus (Cockerell, 1924) | ⇒ Hylaeus paulus Bridwell, 1919 |
| Hylaeus leucolippa Friese, 1913 | |
| Hylaeus leucolippus Friese, 1913 | |
| Hylaeus libericus Cockerell, 1936 | |
| Hylaeus lineaticeps Friese, 1913 | |
| Hylaeus liogonius Vachal, 1899 | |
| Hylaeus longiceps Perkins, 1899 | Boreal Whiteface |
| Hylaeus longmani (Cockerell, 1929) | ⇒ Amphylaeus obscuriceps Friese, 1924 |
| Hylaeus lubbocki Cockerell, 1905 | |
| Hylaeus luctuosus Benoist, 1944 | |
| Hylaeus lumbellus Vachal, 1910 | |
| Hylaeus luzonicus Cockerell, 1914 | |
| Hylaeus lychnis Vachal, 1910 | |
| Hylaeus macilentus Ikudome, 1989 | |
| Hylaeus maculipennis Smith, 1879 | |
| Hylaeus maculipes Cockerell, 1936 | |
| Hylaeus maculosus Friese, 1921 | |
| Hylaeus magnificus Cockerell, 1942 | |
| Hylaeus magrettii Vachal, 1892 | |
| Hylaeus major Strand, 1912 | |
| Hylaeus makaha Magnacca, 2011 | |
| Hylaeus mana Daly & Magnacca, 2003 | |
| Hylaeus mapirensis Schrottky, 1910 | |
| Hylaeus matsumurai Bridwell, 1919 | |
| Hylaeus medialis Morawitz, 1890 | |
| Hylaeus mediolucens Cockerell, 1911 | |
| Hylaeus melaleucae Rayment, 1953 | |
| Hylaeus meridianus Yasumatsu & ..., 1965 | |
| Hylaeus meriti Rayment, 1935 | |
| Hylaeus metopii | |
| Hylaeus mexicanus Cresson, 1869 | |
| Hylaeus milossa Warncke, 1981 | |
| Hylaeus mimicus Daly & Magnacca, 2003 | |
| Hylaeus montacuti Cockerell, 1942 | |
| Hylaeus monticola (Bridwell, 1919) | ⇒ Hylaeus confusus Nylander, 1852 |
| Hylaeus multifarius (Eardley & Urban, 2010) | ⇒ Hylaeus robertianus Cameron, 1906 |
| Hylaeus muranus Warncke, 1970 | |
| Hylaeus murrayensis Rayment, 1935 | |
| Hylaeus murrumbidgeanus Houston, 1981 | |
| Hylaeus mutatus Perkins, 1899 | Boreal Whiteface |
| Hylaeus namaquensis Cockerell, 1942 | |
| Hylaeus nanseiensis Ikudome, 1989 | |
| Hylaeus nasutus Vachal, 1910 | |
| Hylaeus neavei Cockerell, 1942 | |
| Hylaeus nigricans Friese, 1913 | |
| Hylaeus nigrifacies Bramson, 1879 | |
| Hylaeus nigripennis Vachal, 1909 | |
| Hylaeus nigroconcavus | |
| Hylaeus niloticus Warncke, 1970 | |
| Hylaeus nippon Hirashima, 1977 | |
| Hylaeus niveofasciatus Dours, 1872 | |
| Hylaeus nivicola Meade-Waldo, 1923 | Grape blossom midge |
| Hylaeus noomen Hirashima, 1977 | |
| Hylaeus nottoni Dathe, 2014 | |
| Hylaeus nunemacheri Bridwell, 1919 | |
| Hylaeus nyassanus Strand, 1912 | |
| Hylaeus oblitus Warncke, 1970 | |
| Hylaeus odontophora Strand, 1914 | |
| Hylaeus ombrias Perkins, 1899 | |
| Hylaeus opacissimus Cockerell, 1919 | |
| Hylaeus orbicus Vachal, 1910 | |
| Hylaeus oregonensis | |
| Hylaeus oromialis Dathe, 2014 | |
| Hylaeus palmaris Vachal, 1901 | |
| Hylaeus pamelae Dathe, 2014 | |
| Hylaeus pannosus Vachal, 1909 | |
| Hylaeus paradifformis Ikudome, 1989 | |
| Hylaeus paradoxicus Perkins, 1899 | Boreal Whiteface |
| Hylaeus paradoxus Schrottky, 1907 | |
| Hylaeus paraguayensis Schrottky, 1906 | |
| Hylaeus paulistanus Schrottky, 1906 | |
| Hylaeus paulyi Dathe, 2014 | |
| Hylaeus pele Perkins, 1911 | |
| Hylaeus penangensis Cockerell, 1920 | |
| Hylaeus perconstrictus (Cockerell, 1929) | ⇒ Hylaeus chrysaspis Cockerell, 1910 |
| Hylaeus perconvergens (Michener, 1965) | ⇒ Hylaeus obtusatus Smith, 1879 |
| Hylaeus perdensus Cockerell, 1936 | |
| Hylaeus perforatus Smith, 1873 | |
| Hylaeus peringueyi Bridwell, 1919 | |
| Hylaeus perpictus Rayment, 1935 | |
| Hylaeus peruvianus Schrottky, 1910 | |
| Hylaeus pesenkoi Proshchalyki..., 2016 | |
| Hylaeus petroselini Schrottky, 1906 | |
| Hylaeus phaeoscapus Snelling, 1982 | Many-colored tellin |
| Hylaeus pictulus Michener, 1965 | Mountain cave amphipod |
| Hylaeus polybiaeformis Schrottky, 1907 | |
| Hylaeus polybioides Schrottky, 1906 | |
| Hylaeus potaninii Morawitz, 1890 | |
| Hylaeus preposterosus Snelling, 1982 | Many-colored tellin |
| Hylaeus procurvus Rayment, 1939 | |
| Hylaeus proteae Cockerell, 1942 | |
| Hylaeus przewalskyi Morawitz, 1886 | |
| Hylaeus psaenythioides Snelling, 1985 | |
| Hylaeus psammobius Perkins, 1899 | |
| Hylaeus psammophilus Schrottky, 1906 | |
| Hylaeus puerulus Vachal, 1910 | |
| Hylaeus pumilus Dathe, 0 | |
| Hylaeus puncta | |
| Hylaeus punctiferus Cockerell, 1936 | |
| Hylaeus punctulatissima | |
| Hylaeus quadratifer Cockerell, 1912 | |
| Hylaeus rawi Snelling, 1982 | Many-colored tellin |
| Hylaeus recisus Vachal, 1910 | |
| Hylaeus rectanguliceps Alfken, 1928 | |
| Hylaeus reditus Cockerell, 1936 | |
| Hylaeus rhodesicus Cockerell, 1942 | |
| Hylaeus rhodognathus Cockerell, 1936 | |
| Hylaeus rieki (Michener, 1965) | ⇒ Hylaeus leptospermi Cockerell, 1922 |
| Hylaeus rivalis Schrottky, 1906 | |
| Hylaeus roborovskyi Proshchalyki..., 2018 | |
| Hylaeus royesi Raw, 1984 | |
| Hylaeus rubellus Eversmann, 1852 | |
| Hylaeus rubrifacialis Strand, 1912 | |
| Hylaeus rufipedoides Strand, 1911 | |
| Hylaeus rufipictus Strand, 1912 | |
| Hylaeus rufoclypeatus Friese, 1917 | |
| Hylaeus rufulus Friese, 1908 | |
| Hylaeus rugipunctus Alfken, 1914 | |
| Hylaeus rugosus Smith, 1879 | |
| Hylaeus saltensis Friese, 1908 | |
| Hylaeus sanctus Cockerell, 1936 | |
| Hylaeus sansibaribia Strand, 1912 | |
| Hylaeus sansibaribius Strand, 1912 | |
| Hylaeus scrobicauda Vachal, 1901 | |
| Hylaeus scrupeus Vachal, 1909 | |
| Hylaeus sculptilis Schrottky, 1910 | |
| Hylaeus scutellata | |
| Hylaeus scutispinus Alfken, 1914 | |
| Hylaeus seabrai Urban & Moure, 2002 | |
| Hylaeus seclusus Cockerell & ..., 1931 | |
| Hylaeus sedens Snelling, 1980 | |
| Hylaeus setosifrons Perkins, 1899 | Boreal Whiteface |
| Hylaeus simillimus | |
| Hylaeus simplior (Meade-Waldo, 1923) | ⇒ Hylaeus tenuis Alfken, 1914 |
| Hylaeus simpsoni Cockerell, 1942 | |
| Hylaeus solaris Daly & Magnacca, 2003 | |
| Hylaeus sparsa Cresson, 1869 | |
| Hylaeus specularis Perkins, 1899 | Boreal Whiteface |
| Hylaeus stenops Schrottky, 1910 | |
| Hylaeus stigmorrhina Perez, 1895 | |
| Hylaeus stilbaspis Vachal, 1901 | |
| Hylaeus strenuus Cameron, 1897 | Plasterer bee |
| Hylaeus subconstrictus Cockerell, 1922 | |
| Hylaeus subfortis Cockerell, 1942 | |
| Hylaeus sublateralis Cockerell, 1914 | |
| Hylaeus sublucens Cockerell, 1936 | |
| Hylaeus submonticola Ikudome, 1989 | |
| Hylaeus subplebeius Cockerell, 1905 | |
| Hylaeus suffusa Cockerell, 1896 | |
| Hylaeus suffusus Cockerell, 1896 | |
| Hylaeus tagala Ashmead, 1905 | Elliptical astarte |
| Hylaeus taihorinica Strand, 1914 | |
| Hylaeus takumiae Daly & Magnacca, 2003 | |
| Hylaeus tenuis Alfken, 1914 | |
| Hylaeus thoracica Fabricius, 1793 | |
| Hylaeus timberlakei Snelling, 1970 | |
| Hylaeus titanius Friese, 1925 | |
| Hylaeus transversicostata Strand, 1913 | |
| Hylaeus transversicostata ligula Strand, 1913 | |
| Hylaeus transversicostata rugatula Strand, 1913 | |
| Hylaeus transversus Vachal, 1909 | |
| Hylaeus transvittata Cockerell, 1917 | |
| Hylaeus triangulum Fabricius, 1793 | |
| Hylaeus tricolor Schrottky, 1906 | |
| Hylaeus trisulcus Vachal, 1910 | |
| Hylaeus trivittatus Friese, 1917 | |
| Hylaeus tsingtauensis Strand, 1915 | |
| Hylaeus tuamotuensis Michener, 1965 | Mountain cave amphipod |
| Hylaeus ubertus Vachal, 1910 | |
| Hylaeus uelleburgensis Strand, 1912 | |
| Hylaeus ugandicus Cockerell, 1939 | |
| Hylaeus ulaula Magnacca, 2011 | |
| Hylaeus umtalicus Cockerell, 1936 | |
| Hylaeus unicus Perkins, 1899 | Boreal Whiteface |
| Hylaeus vachali Meade-Waldo, 1923 | Grape blossom midge |
| Hylaeus vachalianus Moure, 1960 | |
| Hylaeus variolosus Smith, 1853 | Neighbor tagelus |
| Hylaeus venustus Dathe, 2014 | |
| Hylaeus versicolor Saunders, 1850 | |
| Hylaeus vigilans Smith, 1879 | |
| Hylaeus villosellus Moure, 1960 | |
| Hylaeus volcanicus Perkins, 1899 | Boreal Whiteface |
| Hylaeus vulgaris Morawitz, 1876 | |
| Hylaeus worcesteri Cockerell, 1919 | |
| Hylaeus xanthocephalus Schrottky, 1906 | |
| Hylaeus xanthognathus Rayment, 1935 | |
| Hylaeus yaguarae Schrottky, 1913 | |
| Hylaeus yatsumatsui | |
| Hylaeus yoruba Bridwell, 1919 | |
| Hyleoides abnormis Houston, 1975 | |
| Hyleoides bivulnerata Cockerell, 1921 | |
| Hyleoides concinna Fabricius, 1775 | Common Wasp-mimic Bee |
| Hyleoides concinna collaris Friese, 1924 | |
| Hyleoides concinna ruficollaris Rayment, 1935 | |
| Hyleoides concinnula Cockerell, 1909 | |
| Hyleoides planifrons Houston, 1975 | |
| Hyleoides striatula Cockerell, 1921 | |
| Hyleoides waterhousei Cockerell, 1913 | |
| Hyleoides zonalis Smith, 1853 | Stout tagelus |
