A NEW SPECIES IN THE RHEOCRICOTOPUS (R.) EFFUSUS GROUP FROM CANADA WITH A REVIEW OF THE NEARCTIC SPECIES OF RHEOCRICOTOPUS AND PARAMETRIOCNEMUS (CHIRONOMIDAE: ORTHOCLADIINAE) Abstract Author Namayandeh, Armin Taxanama Corp., 25 Mabelle Ave, Toronto, ON, M 9 A 4 Y 1, Canada. a.namayan@taxanama.com Author Beresford, David V. Department of Biology, Trent University, Peterborough, Ontario, Canada. davidberesford@trentu.ca text CHIRONOMUS Journal of Chironomidae Research 2018 2018-12-27 31 16 29 journal article 10.5324/cjcr.v0i31.2531 2387-5372 Rheocricotopus ( Psilocricotopus ) chapmani (Edwards, 1935) Adults: Male and female described by Saether (1985). Immatures: Unknown. Ecology and Habitat: Adults collected near lentic and lotic habitats (Saether 1985). NE: Canada ( Northwest Territories , Nunavut , Yukon Territory); Greenland . In the Palearctic, recorded in Finland and Norway .