Calopsectra luticola Kieffer, 1922 – synonym of Tanytarsus bathophilus
Calopsectra tripunctata Reiss, 1968 – synonym of Tanytarsus bathophilus
Camptocladius ephemerae Kieffer in Súlc and Zavrel, 1924 – synonym of Epoicocladius flavens
Camptocladius foenisuga Kieffer, 1921 (a questionable synonymy) – synonym of Paralimnophyes hydrophilus
Camptocladius longiseta Thienemann, 1921 – synonym of Paralimnophyes hydrophilus
Chironomus "saxonicus Kieff." Lenz, 1921 (???) (nomen nudum) – synonym of Chironomus riparius
Chironomus (Chironomus) claripennis: Edwards, 1929 nec Malloch, 1915 – synonym of Paracladopelma nigritula
Chironomus (Cryptochironomus) atriforceps Goetghebuer, 1928 – synonym of Demicryptochironomus vulneratus
Chironomus (Cryptochironomus) lhoneuxi Goetghebuer, 1921 – synonym of Parachironomus frequens
Chironomus (Cryptochironomus) longicauda Goetghebuer, 1921 – synonym of Demicryptochironomus vulneratus
Chironomus (Glyptotendipes) severini Goetghebuer, 1923 – synonym of Glyptotendipes imbecillis
Chironomus (Lauterborniella) brachylabis Edwards, 1929 – synonym of Paralauterborniella nigrohalteralis
Chironomus (Leptochironomus) balticus Pagast, 1931 – synonym of Microchironomus tener
Chironomus (Limnochironomus) notatus var. rufolineatus Goetghebuer, 1928 (a questionable synonymy) – synonym of Dicrotendipes notatus
Chironomus (Orthocladius) sordidellus: Taylor, 1903 nec Zetterstedt, 1838 – synonym of Orthocladius rivulorum
Chironomus (s.str.) meigeni Kieffer sensu Thienemann and Strenzke 1951 – synonym of Chironomus acidophilus
Chironomus abdominalis Meigen, 1818 – synonym of Chironomus tentans
Chironomus absconditus Kieffer, 1926 – synonym of Chironomus annularius
Chironomus adjunctus Walker, 1856 – synonym of Metriocnemus fuscipes
Chironomus aestivus Curtis, 1825 – synonym of Eurycnemus crassipes
Chironomus albidus Walker, 1848 nec Wiedemann, 1818 – synonym of Polypedilum convictum
Chironomus alismatis Kieffer, 1915 – synonym of Endochironomus tendens
Chironomus alismatis var. xantholabis Kieffer, 1915 – synonym of Endochironomus tendens
Chironomus alligatus Walker, 1856 – synonym of Metriocnemus fuscipes
Chironomus alpestris Goetghebuer, 1934 – synonym of Chironomus dorsalis
Chironomus amasia Meigen, 1830 – synonym of Cricotopus ornatus
Chironomus ammon Haliday, 1856 in Walker, 1856a – synonym of Potthastia gaedii
Chironomus angustiforceps Kieffer, 1916 in Thienemann and Kieffer, 1916a – synonym of Chironomus cingulatus
Chironomus annularis Meigen, 1804 nec Tipula annularis De Geer, 1776 when both in Chironomus – synonym of Paratendipes albimanus
Chironomus annularius: Meigen, 1818 , misidentification of annularis De Geer, 1776 – synonym of Chironomus annularius
Chironomus aprilinus var. obscurus Goetghebuer, 1921 nec Meigen, 1804 and nec Zetterstedt, 1838 – synonym of Chironomus aprilinus
Chironomus aprilinus: Kieffer, 1918 nec Meigen, 1830 – synonym of Chironomus tentans
Chironomus atrofasciatus Kieffer, 1921 nom. nov. for aprilinus: Kieffer, 1918 – synonym of Chironomus tentans
Chironomus bequaerti Goetghebuer, 1921 – synonym of Chironomus longipes
Chironomus biappendiculata Kruglova, 1940 – synonym of Einfeldia pagana
Chironomus bifasciatus Meigen, 1818 – synonym of Demeijerea rufipes
Chironomus bipartitus Kieffer, 1915 (a questionable synonymy) – synonym of Dicrotendipes nervosus
Chironomus blandus van der Wulp, 1858 – synonym of Polypedilum convictum
Chironomus brevibarba Kieffer, 1922 (a questionable synonymy) – synonym of Chironomus dorsalis
Chironomus brevifilis Kieffer, 1915 – synonym of Glyptotendipes glaucus
Chironomus brevifilis var. inclusus Kieffer, 1915 – synonym of Glyptotendipes glaucus
Chironomus brevimanus Kieffer, 1909 – synonym of Endochironomus lepidus
Chironomus brevitibialis Zetterstedt, 1850 – synonym of Dicrotendipes nervosus
Chironomus brevitibialis: Goetghebuer, 1921 nec Zetterstedt, 1850 – synonym of Dicrotendipes lobiger
Chironomus brunnipes Zetterstedt, 1850 – synonym of Micropsectra junci
Chironomus bryozoarum Kieffer, 1909 (a questionable synonymy) – synonym of Endochironomus tendens
Chironomus calolabis Kieffer, 1915 – synonym of Endochironomus tendens
Chironomus calolabis var. sparganiicola Kieffer, 1915 – synonym of Endochironomus tendens
Chironomus candidus Kieffer, 1913 (a questionable synonymy) – synonym of Glyptotendipes imbecillis
Chironomus carbonarius: Walker, 1848 nec Meigen, 1804 – synonym of Tribelos intextus
Chironomus chiopterus Meigen, 1804 – synonym of Camptocladius stercorarius
Chironomus coaequatus Walker, 1856 – synonym of Acricotopus lucens
Chironomus convectus Walker, 1856 – synonym of Einfeldia dissidens
Chironomus convestita Walker, 1856 – synonym of Prodiamesa olivacea
Chironomus cristatus Fabricius, 1805 – synonym of Chironomus plumosus
Chironomus curtibarba Kieffer, 1922 – synonym of Chironomus riparius
Chironomus danicus Kieffer, 1915 (a questionable synonymy) – synonym of Endochironomus tendens
Chironomus debilipennis Lundbeck, 1898 – synonym of Paraphaenocladius impensus
Chironomus decksbachi Goetghebuer, 1930 (a questionable synonymy) – synonym of Chironomus dorsalis
Chironomus denotatus Walker, 1856 – synonym of Paracladius conversus
Chironomus deproperans Walker, 1856 – synonym of Metriocnemus fuscipes
Chironomus deviatus Malloch, 1923 – synonym of Tanytarsus gracilentus
Chironomus dilatus van der Wulp, 1858 – synonym of Acricotopus lucens
Chironomus diplosus Kieffer, 1915 – synonym of Chironomus plumosus
Chironomus dispessus Walker, 1856 – synonym of Dicrotendipes modestus
Chironomus dizonias Meigen, 1830 – synonym of Cricotopus bicinctus
Chironomus dorsalis var. atrolineatus Goetghebuer, 1928 – synonym of Chironomus dorsalis
Chironomus dorsalis var. islandicus Goetghebuer, 1931 in Goetghebuer and Lindroth, 1931a – synonym of Chironomus dorsalis
Chironomus elegans Meigen, 1818 – synonym of Eurycnemus crassipes
Chironomus enotatus Walker, 1856 – synonym of Polypedilum c tritum
Chironomus enotatus Walker, 1856 – synonym of Polypedilum nubeculosum
Chironomus ferrugineovittatus Zetterstedt, 1850 – synonym of Chironomus plumosus
Chironomus fertus Walker, 1856 – synonym of Metriocnemus fuscipes
Chironomus flavonervosus Staeger, 1839 (a questionable synonymy) – synonym of Polypedilum bicrenatum
Chironomus fluminalis Kieffer, 1915 – synonym of Chironomus plumosus
Chironomus frequens Johannsen, 1905 – synonym of Parachironomus frequens
Chironomus fuscimanus Meigen, 1830 (a questionable synonymy) – synonym of Cricotopus ornatus
Chironomus fuscipennis Meigen, 1818 (a questionable synonymy) – synonym of Polypedilum pedestre
Chironomus futilis Walker, 1856 – synonym of Dicrotendipes nervosus
Chironomus gibbosus Meigen, 1830 (a questionable synonymy) – synonym of Cricotopus bicinctus
Chironomus gilvus Goetghebuer, 1919 – synonym of Glyptotendipes pallens
Chironomus gmundensis Egger, 1863 – synonym of Micropsectra junci
Chironomus goetghebueri Kieffer, 1915 – synonym of Dicrotendipes nervosus
Chironomus grandis Meigen, 1818 – synonym of Chironomus plumosus
Chironomus gregarius Kieffer, 1909 (a questionable synonymy) – synonym of Chironomus riparius
Chironomus halochares Kieffer, 1915 in Thienemann, 1915a – synonym of Chironomus riparius
Chironomus halophilus Kieffer, 1913 – synonym of Chironomus aprilinus
Chironomus hebescens Walker, 1856 – synonym of Chironomus plumosus
Chironomus heterolabis Kieffer, 1915 – synonym of Dicrotendipes notatus
Chironomus heteropus Kieffer, 1906 (a questionable synonymy) – synonym of Paratendipes albimanus
Chironomus hirtipes Macquart, 1834 – synonym of Eurycnemus crassipes
Chironomus horni Kieffer, 1918 (a questionable synonymy) – synonym of Chironomus annularius
Chironomus incoactus Walker, 1856 – synonym of Orthocladius rubicundus
Chironomus inscendens Walker, 1856 – synonym of Potthastia gaedii
Chironomus inserpens Walker, 1856 – synonym of Paracladius conversus
Chironomus insolitus Kieffer, 1922 – synonym of Einfeldia dissidens
Chironomus interruptus Kieffer, 1909 – synonym of Chironomus riparius
Chironomus intrudens Walker, 1856 (a questionable synonymy) – synonym of Micropsectra notescens
Chironomus juncicola Kieffer, 1913 (a questionable synonymy) – synonym of Glyptotendipes pallens
Chironomus kochianus Kieffer, 1919 in Kieffer and Thienemann, 1919a – synonym of Chironomus riparius
Chironomus latidens Goetghebuer, 1921 – synonym of Einfeldia pagana
Chironomus leucoceras Kieffer, 1913 – synonym of Glyptotendipes viridis
Chironomus leucopus Meigen, 1830 – synonym of Polypedilum c tritum
Chironomus leucopus Meigen, 1830 – synonym of Polypedilum nubeculosum
Chironomus longifilis Kieffer, 1915 – synonym of Glyptotendipes pallens
Chironomus lucidus Staeger, 1839 nec Zetterstedt, 1838 – synonym of Acricotopus lucens
Chironomus malacus Walker, 1856 – synonym of Parachironomus biannulatus
Chironomus meigeni Kieffer, 1921 (a questionable synonymy) – synonym of Chironomus acidophilus
Chironomus microthrix Kieffer, 1916 in Thienemann and Kieffer, 1916a (a questionable synonymy) – synonym of Chironomus cingulatus
Chironomus miki Kieffer, 1915 – synonym of Endochironomus albipennis
Chironomus modestus Meigen, 1830 preoccupied – synonym of Brillia modesta
Chironomus motitator: Walker, 1856 nec Tipula motitator Linnaeus, 1758 – synonym of Cricotopus bicinctus
Chironomus moturus Walker, 1856 – synonym of Acricotopus lucens
Chironomus nacta Walker, 1856 – synonym of Micropsectra notescens
Chironomus nemoralis Zetterstedt, 1850 (a questionable synonymy) – synonym of Chironomus cingulatus
Chironomus nigrimanus Staeger, 1839 – synonym of Demicryptochironomus vulneratus
Chironomus nigrimanus var. nigrolineatus Goetghebuer, 1921 – synonym of Demicryptochironomus vulneratus
Chironomus nigroviridis Macquart, 1834 – synonym of Chironomus dorsalis
Chironomus nitidicollis Stephens, 1856 in Walker, 1856a – synonym of Acricotopus lucens
Chironomus norderneyanus Kieffer, 1913 – synonym of Glyptotendipes glaucus
Chironomus notabilis Macquart, 1834 – synonym of Endochironomus lepidus
Chironomus nubilipennis Meigen, 1838 – synonym of Polypedilum laetum
Chironomus obditus Walker, 1856 – synonym of Prodiamesa olivacea
Chironomus objectans Walker, 1856 – synonym of Dicrotendipes modestus
Chironomus obscurimanus Meigen, 1830 (a questionable senior synonymy) – synonym of Odontomesa fulva
Chironomus obscurimanus Zetterstedt, 1850 – synonym of Cricotopus ornatus
Chironomus obscuripes Meigen, 1830 – synonym of Glyptotendipes glaucus
Chironomus obsepiens Walker, 1856 – synonym of Acricotopus lucens
Chironomus obsistens Walker, 1856 – synonym of Metriocnemus fuscipes
Chironomus obtexens Walker, 1856 – synonym of Paracladius conversus
Chironomus occipiens Walker, 1856 – synonym of Micropsectra notescens
Chironomus occultans Meigen, 1830 – synonym of Hydrobaenus lugubris
Chironomus offectus Walker, 1856 – synonym of Micropsectra notescens
Chironomus opplens Walker, 1856 – synonym of Paratrichocladius rufiventris
Chironomus oscillator Meigen, 1818 (a questionable synonymy) – synonym of Cricotopus ornatus
Chironomus patens Walker, 1856 – synonym of Polypedilum pedestre
Chironomus patibilis Walker, 1856 – synonym of Acricotopus lucens
Chironomus pentatomus Kieffer, 1909 – synonym of Chironomus riparius
Chironomus perpessus Walker, 1856 – synonym of Prodiamesa olivacea
Chironomus persidens Walker, 1856 – synonym of Orthocladius rubicundus
Chironomus pervulsus Walker, 1856 – synonym of Acricotopus lucens
Chironomus pictipes Zetterstedt, 1850 – synonym of Polypedilum pedestre
Chironomus polytomus Kieffer, 1909 – synonym of Glyptotendipes pallens
Chironomus praecox Wiedemann, 1818 in Meigen, 1818 – synonym of Micropsectra junci
Chironomus pulcher Zetterstedt, 1838 – synonym of Demeijerea rufipes
Chironomus pulsus Walker, 1856 – synonym of Dicrotendipes modestus
Chironomus rectilobus Kieffer, 1921 (a questionable synonymy) – synonym of Chironomus dorsalis
Chironomus rousseaui Goetghebuer, 1921: pp. 41, 148 – synonym of Xenochironomus xenolabis
Chironomus sanguineus Kieffer, 1909 – synonym of Chironomus cingulatus
Chironomus scutellatus Meigen, 1818 – synonym of Prodiamesa olivacea
Chironomus subaprilinus Kieffer, 1918 – synonym of Chironomus tentans
Chironomus subriparius Kieffer, 1918 – synonym of Chironomus riparius
Chironomus testaceum Macquart, 1826 (a questionable synonymy) – synonym of Polypedilum convictum
Chironomus thummi var. bifilis Kieffer, 1916 in Thienemann and Kieffer, 1916a (a questionable synonymy) – synonym of Chironomus riparius
Chironomus thummi var. curtiforceps Kieffer, 1916 in Thienemann and Kieffer, 1916a – synonym of Chironomus riparius
Chironomus trichopus Walker, 1856 – synonym of Endochironomus tendens
Chironomus trinotatus van der Wulp, 1874 – synonym of Polypedilum scalaenum
Chironomus turpis Zetterstedt, 1838 – synonym of Prodiamesa olivacea
Chironomus typhon Haliday, 1856 in Walker, 1856a – synonym of Potthastia gaedii
Chironomus vernalis Meigen, 1804 – synonym of Chironomus tentans
Chironomus versicolor Kieffer, 1909 – synonym of Chironomus cingulatus
Chironomus versicolor var. atripes Kieffer, 1909 – synonym of Chironomus cingulatus
Chironomus virescens Kieffer, 1921 nec Meigen, 1818 – synonym of Dicrotendipes modestus
Chironomus viridanus Ruthe, 1831 (a questionable synonymy) – synonym of Parachironomus biannulatus
Chironomus viridicollis van der Wulp, 1858 – synonym of Chironomus dorsalis
Chironomus waldheimii Gimmerthal, 1847 – synonym of Chironomus dorsalis
Chironomus yoshimatsui Martin and Sublette, 1972 – synonym of Chironomus dorsalis
Chironomus zernyi Goetghebuer, 1931 (a questionable synonymy) – synonym of Chironomus dorsalis
Chironomus zonulus Zetterstedt, 1838 – synonym of Chironomus riparius
Cladopelma olstadi Kieffer, 1926 (a questionable synonymy) – synonym of Paracladopelma nigritula
Cladopelma sinuosus Kieffer, 1924 (a questionable synonymy) – synonym of Microchironomus tener
Corynocera ambigua brachyptera Linevich, 1961 – synonym of Corynocera ambigua
Corynoneura morosa Edwards, 1924 – synonym of Thienemanniella acuticornis
Corynoneura pseudosimilis Goetghebuer, 1921 – synonym of Thienemanniella clavicornis
Cricotopus atritarsis Kieffer, 1915 – synonym of Cricotopus ornatus
Cricotopus boiemicus Kieffer, 1923 (a questionable synonymy) – synonym of Rheocricotopus glabricollis
Cricotopus carnosus var. angorensis Kieffer, 1918 (a questionable synonymy) – synonym of Cricotopus ornatus
Cricotopus dispar Goetghebuer, 1913 – synonym of Rheocricotopus fuscipes
Cricotopus edwardsi Storå, 1936 in Frey, 1936a – synonym of Cricotopus vierriensis
Cricotopus halobius Kieffer, 1925 (a questionable synonymy) – synonym of Cricotopus ornatus
Cricotopus hirtimanus Kieffer, 1915 (a questionable synonymy) – synonym of Cricotopus ornatus
Cricotopus kroeberi Goetghebuer, 1935 – synonym of Cricotopus ornatus
Cricotopus longicollis Kieffer, 1925 – synonym of Nanocladius rectinervis
Cricotopus niger var. muscicola Kieffer, 1913 – synonym of Paracricotopus niger
Cricotopus pseudosimilis Goetghebuer, 1939 in Goetghebuer and Timon-David, 1939a – synonym of Cricotopus vierriensis
Cricotopus rivicola Kieffer, 1921 – synonym of Rheocricotopus effusus
Cricotopus sordicola Kieffer, 1912 – synonym of Rheocricotopus fuscipes
Cricotopus sordiicola var. discolor Kieffer, 1913 (a questionable synonymy) – synonym of Rheocricotopus fuscipes
Cricotopus sordiicola var. fuscithorax Kieffer, 1913 – synonym of Rheocricotopus fuscipes
Cricotopus(?) versidentatus Chernovskij, 1949 – synonym of Orthocladius consobrinus
Cryptochironomus aegyptius Kieffer, 1925 – synonym of Microchironomus tener
Cryptochironomus distractus Johannsen, 1932 – synonym of Microchironomus tener
Cryptochironomus longiforceps Kieffer, 1921 – synonym of Parachironomus frequens
Cryptochironomus lv. vytshegdae Zvereva, 1950 – synonym of Kloosia pusilla
Cryptochironomus polyseticus Botnariuc and Cure, 1956 – synonym of Odontomesa fulva
Cryptochironomus serpancus Kirpichenko, 1961 – synonym of Kloosia pusilla
Curvaria minuta Chernovskij, 1938 (nomen nudum) – synonym of Pagastiella orophila