W

a. $ WIEDEMANNI
b. EINFELDIA - FITTKAU, SCHLEE & REISS 1967A: 371.
c. GOETGHEBUER 1931D: 98 - as GLYPTOTENDIPES (PHYTOTENDIPES).
d. EUROPE - Type locality not given, ?AUSTRIA.
e. GOETGHEBUER 1937-54(13c): 31 - as TENDIPES (EINFELDIA).  ASHE & CRANSTON 1990: 278 - as noden dubium in EINFELDIA.

a. * WILLISTONI
b. SYN : XESTOCHIRONOMUS FURCATUS - SUBLETTE 1967B, SUBLETTE & WIRTH 1972A.
c. JOHANNSEN 1905A: 235 - as CHIRONOMUS on basis of WILLISTON's description of the male.
d. NEOTROPICS - St. Vincent, WEST INDIES (Type lost).
e. WILLISTON 1896: 275 - as CHIRONOMUS n. sp.  SPIES & REISS 1996: 90 - Note the synonymy is doubtful and that WILLISTONI should not be a junior synonym, but class it as Nomen dubium in CHIRONOMINAE.

a. $ WINTHEMI
b. CHIRONOMUS, but IDENTITY UNCERTAIN - WÜLKER & KLOETZLI 1973A:
c. GOETGHEBUER 1931D: 104 - as CHIRONOMUS, on basis of adult male.
d. EUROPE - Type locality not given (Type in Museum of Natural History Vienna); HUNGARY.
e. WINTHEM - as C. PULCHER.  ASHE & CRANSTON 1990: 268 - as Nomen dubium in CHIRONOMUS.

a. * WIRTHI
b. SYN: DICROTENDIPES PELOCHLORIS - EPLER 1988: 134.
c. FREEMAN 1961A: 692 - as CHIRONOMUS (DICROTENDIPES), on basis of adult male and female.
d. AUSTRALIA - Mosman, N.S.W.
e. CRANSTON & MARTIN 1989: 269 - as syn. D. PELOCHLORIS.

a. * WOODI
b. ENDOCHIRONOMUS - FREEMAN & CRANSTON 1980A: 191.
c. FREEMAN 1957A: 355 - as CHIRONOMUS (ENDOCHIRONOMUS).
d. AFRICA - MALAWI.
e.

a. $ WUELKERI
b. Valid species - SPIES & REISS 1996: 69.
c. SUBLETTE & SASA 1994: 30 - as CHIRONOMUS, on basis of adult male and female.
d. NEOTROPICAL - Rincon, GUATEMALA (Types in SASA collection, Japan).
e.

a. $ WÜLKERI (WULKERI)
b. CHIRONOMUS (S.S.)
c. PHILINKOVA & BELYANINA 1993: 119 - as CHIRONOMUS, on basis of all stages and cytology.
d. EUROPE - Krasy Kamen, polar URALS, RUSSIA; Northern SWEDEN.
e. SPIES & REISS 1996: 86 - correct spelling is WULKERI.

X

a. * XANTHOLABIS
b. SYN. ENDOCHIRONOMUS TENDENS - ASHE & CRANSTON 1990: 280.
c. KIEFFER 1915B: 77 - as CHIRONOMUS and var. ALISMATIS.
d. EUROPE - Holzmaar, Eifel, GERMANY.
e.

a. $ XANTHUS
b. CHIRONOMUS - SPIES & REISS 1996: 69.
c. REMPEL 1939A: - as CHIRONOMUS (CAMPTOCHIRONOMUS), on basis of adult male and female.  Notes relationship to CRASSICAUDATUS
d. SOUTH AMERICA - Ac. Velho, BRASIL.
e.

a. * XENOLABIS
b. XENOCHIRONOMUS - KIEFFER 1921B: 70.
c. KIEFFER (In THIENEMANN & KIEFFER 1916A): 526 - as CHIRONOMUS.
d. HOLARCTIC - Huskvarna Aa, SWEDEN (August 1912); Canada, U.S.A., Thailand.
e. TOWNES 1945A: 92; ASHE & CRANSTON 1990: 316 - as XENOCHIRONOMUS.

Y

a. * YAMASINENSIS
b. MICROTENDIPES - SASA & YAMAMOTO 1977A: 313.
c. TOKUNAGA 1940B: 295 - as CHIRONOMUS (MICROTENDIPES), on basis of adult male and female, but pupae and larvae included in Paratype series..
d. ASIA - Yamashina & Kumano, KYOTO, JAPAN.
e. ASHE & CRANSTON 1990; 291 - as MICROTENDIPES.

a. $ YOSHIMATSUI
b. CHIRONOMUS (S.S.)
c. MARTIN & SUBLETTE 1972A: 2 - as CHIRONOMUS, on basis of all life stages and cytology.
d. ASIA - Yamaguchi; Hokkaido, JAPAN; KOREA, Far Eastern RUSSIA.
e. SASA & YAMAMOTO 1977A: 312; SASA 1978A: 23, 1985: 3 - redescription.  OHNO 1981: 155 - Ecology.  REE & KIM 1981: 136 - as C. FLAVIPLUMUS (MISIDENTIFIED), description of all stages.  KIKNADZE, ISTOMINA, GOLYGINA & GUNDERINA 2016: 449 - cytology (incorrectly as syn. C. DORSALIS Meigen & C. LURIDUS Strenzke 1959).