• Abatetia robusta (Parent, 1933)
• Abgrallaspis cyanophylli (Signoret, 1869)
• Ablabesmyia mala (Hutton, 1902)
• Abroscelis anchoralis (Chevrolat, 1845)
• Acanalonia pumila (Van Duzee, 1908)
• Acanthia (Chiloxanthus) arcticus (Sahlberg, 1878) accepted as Chiloxanthus arcticus (Sahlberg, 1878)
• Acanthia arctica (Sahlberg, 1878) accepted as Chiloxanthus arcticus (Sahlberg, 1878)
• Acanthia bicolor Curtis, 1835 accepted as Halosalda lateralis (Fallén, 1807)
• Acanthia elegantula (Fallén, 1807) accepted as Chartoscirta elegantula (Fallén, 1807)
• Acanthia grenieri Signoret, 1883 accepted as Halosalda concolor (Puton, 1880)
• Acanthia lateralis Puton, 1880 accepted as Halosalda concolor (Puton, 1880)
• Acanthia lateralis concolor Puton, 1880 accepted as Halosalda concolor (Puton, 1880)
• Acanthia pulchella Curtis, 1835 accepted as Halosalda lateralis (Fallén, 1807)
• Acanthoscelides obtectus (Say, 1831)
• Acartomyia mariae (Sergent & Sergent, 1903)
• Acartomyia phoeniciae (Coluzzi & Sabatini, 1968)
• Acartomyia zammitii (Theobald, 1903)
• Aceratagallia sanguinolenta (Provancher, 1872)
• Acerophagus pallidus Timberlake, 1918
• Achroia grisella (Fabricius, 1794)
• Achryson surinamum (Linnaeus, 1767)
• Achyra rantalis Guenée, 1854
• Acilius semisulcatus Aubé, 1838
• Acroschismus bowditchi Pierce, 1909 accepted as Xenos pecki Kirby, 1813
• Acroschismus hubbardi Pierce, 1908 accepted as Xenos pallidus (Brues, 1903)
• Acroschismus hunteri Pierce, 1909 accepted as Xenos hunteri (Pierce, 1909)
• Acroschismus maximus Pierce, 1909 accepted as Xenos pecki Kirby, 1813
• Acroschismus pallidus Brues, 1903 accepted as Xenos pallidus (Brues, 1903)
• Acroschismus pallidus texensis Pierce, 1909 accepted as Xenos pallidus (Brues, 1903)
• Acroschismus pecosensis Pierce, 1909 accepted as Xenos pecki Kirby, 1813
• Acroschismus rubiginosi Pierce, 1909 accepted as Xenos rubiginosi (Pierce, 1909)
• Acroschismus texani Pierce, 1909 accepted as Xenos pecki Kirby, 1813
• Acrotrichis insularis (Mäklin, 1852)
• Acrotrichis josephi (Matthews, 1872)
• Actaletes calcarius Bellinger, 1962
• Actaletes neptuni Giard, 1889
• Acticola falklandica Cameron, 1944
• Actidium coarctatum (Haliday)
• Actocharis cassandrensis Assing, 1992
• Actocharis marina Fauvel, 1871 accepted as Actocharis readingii Sharp, 1870
• Actocharis readingii Sharp, 1870
• Actornithophilus bicolor (Piaget, 1880)
• Actornithophilus ceruleus (Timmermann, 1954)
• Actornithophilus grandiceps (Piaget, 1880)
• Actornithophilus incisus (Piaget, 1880)
• Actornithophilus limosae (Kellogg, 1908)
• Actornithophilus ochraceus (Nitzsch, 1818)
• Actornithophilus pauliani Séguy, 1953
• Actornithophilus pediculoides (Mjoberg, 1910)
• Actornithophilus piceus (Denny, 1842)
• Actornithophilus spinulosus (Piaget, 1880)
• Actornithophilus umbrinus (Burmeister, 1838)
• Acutaspis morrisonorum Kosztarab, 1963
• Acylomus calcaratus Casey, 1890
• Acyrthosiphon malvae (Mosley, 1841)
• Acyrthosiphon porosum (Sanderson, 1900) accepted as Rhodobium porosum (Sanderson, 1900)
• Adalia bipunctata (Linnaeus, 1758)
• Adalia flavomaculata De Geer, 1778 accepted as Lioadalia flavomaculata (De Geer, 1778)
• Adelphithrips dolus Mound & Walker, 1982
• Adia cinerea (Robineau-Desvoidy, 1830)
• Adipsomyia stigmosa (Smith, 1964)
• Adota colpophila Gusarov, 2003
• Adota gnypetoides (Casey, 1910)
• Adota immigrans (Easton, 1971) accepted as Adota maritima (Mannerheim, 1843)
• Adota insons Casey, 1911 accepted as Adota maritima (Mannerheim, 1843)
• Adota madida (Bernhauer, 1907)
• Adota magnipennis (Bernhauer, 1943)
• Adota maritima (Mannerheim, 1843)
• Adota massettensis Casey, 1910 accepted as Adota maritima (Mannerheim, 1843)
• Adota scolopacina Casey, 1911 accepted as Adota maritima (Mannerheim, 1843)
• Adota scortea Casey, 1911 accepted as Adota maritima (Mannerheim, 1843)
• Adota setosetarsis Casey, 1910 accepted as Adota maritima (Mannerheim, 1843)
• Adota subintima Casey, 1910 accepted as Adota maritima (Mannerheim, 1843)
• Adota ushio (Sawada, 1971)
• Aedes (Finlaya) savoryi Bohart, 1957
• Aedes (Halaedes) australis (Erichson, 1842) accepted as Halaedes australis (Erichson, 1842)
• Aedes (Lorrainea) dasyorrhus King & Hoogstraal, 1946 accepted as Lorrainea dasyorrhus (King & Hoogstraal, 1946)
• Aedes (Nothoskusea) chathamicus Dumbleton, 1962 accepted as Opifex chathamicus (Dumbleton, 1962)
• Aedes (Ochlerotatus) arundinariae Kasper, 2020
• Aedes (Ochlerotatus) atropalpus (Coquillett, 1902) accepted as Georgecraigius atropalpus (Coquillett, 1902)
• Aedes (Ochlerotatus) caspius (Pallas, 1771) accepted as Ochlerotatus caspius (Pallas, 1771)
• Aedes (Ochlerotatus) detritus (Haliday, 1833) accepted as Ochlerotatus detritus (Haliday, 1833)
• Aedes (Ochlerotatus) dorsalis (Meigen, 1830) accepted as Ochlerotatus dorsalis (Meigen, 1830)
• Aedes (Ochlerotatus) mariae (Sergent & Sergent, 1903) accepted as Acartomyia mariae (Sergent & Sergent, 1903)
• Aedes (Ochlerotatus) phoeniciae Coluzzi & Sabatini, 1968 accepted as Acartomyia phoeniciae (Coluzzi & Sabatini, 1968)
• Aedes (Ochlerotatus) sollicitans (Walker, 1856) accepted as Ochlerotatus sollicitans (Walker, 1856)
• Aedes (Ochlerotatus) taeniorhynchus (Wiedemann, 1821) accepted as Ochlerotatus taeniorhynchus (Wiedemann, 1821)
• Aedes (Ochlerotatus) vigilax (Skuse, 1889) accepted as Ochlerotatus vigilax (Skuse, 1889)
• Aedes (Ochlerotatus) zammitii Theobald, 1903 accepted as Acartomyia zammitii (Theobald, 1903)
• Aedes aegypti (Linnaeus, 1762)
• Aedes cantator Coquillett, 1903 accepted as Ochlerotatus cantator (Coquillett, 1903)
• Aedes savoryi Bohart, 1957 represented as Aedes (Finlaya) savoryi Bohart, 1957
• Aedes togoi (Theobald, 1907)
• Aegialia arenaria (Fabricius, 1787)
• Aegialites californicus Motschulsky, 1845
• Aegialites fuchsi Horn, 1893
• Aegialites stejnegeri Linell, 1898
• Aegialites subopacus (Van Dyke, 1918)
• Aeolothrips fasciatus (Linnaeus, 1758)
• Aepophilus bonnairei Signoret, 1879