There are 9 species in 2 genera recorded from Michigan (denoted in blue), with another 5 species and an additional genus likely to occur here based on their known regional distribution. A specimen of Cercobrachys also has recently been collected, but its species identity has not yet been confirmed (Todd White, MSU, pers. comm.). The systematics of the family has recently been revised by Sun and McCafferty (2008); Michigan species previously included in Brachycercus are now placed to a new genus Sparbarus.

Caenis Stephens, 1835

Caenis amica Hagen, 1861
   • Caenis simulans McDunnough, 1931
Caenis anceps Traver, 1935
Caenis diminuta Walker, 1853
Caenis hilaris (Say), 1839 Ephemera - (records at Cook Collection, MSU, East Lansing, Michigan - Koss 1969)
Caenis latipennis Banks, 1907
   • Caenis delicata Traver, 1935
   • Caenis forcipata McDunnough, 1931
   • Caenis gigas Burks, 1953
   • Caenis jocosa McDunnough, 1931
Caenis punctata McDunnough, 1931
Caenis tardata McDunnough, 1931 – (records at Cook Collection, MSU, East Lansing, Michigan - Koss 1969)
Caenis youngi Toemhild, 1984

Cercobrachys Soldán, 1986

Cercobrachys etowah Soldán, 1986 - IN, WI
Cercobrachys fox Lu & McCafferty, 2008 - IN, WI
Cercobrachys lilliei Lu & McCafferty, 2008 - WI
Cercobrachys winnebago Lu & McCafferty, 2008 - WI

Sparbartis Lu & McCafferty, 2008

Sparbartis lacustris(Needham), 1918 Caenis
   • Brachycercus idei (Lestage), 1931 (syn.)
   • Brachycercus lacustris (Needham), 1918 (comb.)
   • Brachycercus pallidus (Ide), 1930 (syn.)
   • Eurycaenis idei Lestage, 1931 (syn.)
   • Eurycaenis lacustris (Needham), 1918 (comb.)
   • Eurycaenis pallida Ide, 1930 (syn.)
Sparbartis maculatus (Berner), 1946 Brachycercus - OH
   • Brachycercus pini Soldan, 1986
Sparbartis nasatus Soldan, 1986 Brachycercus – IN, WI
Sparbartis prudens (McDunnough), 1931 Eurycaenis - IN, WI
   • Brachycercus prudens (McDunnough), 1931

References

Sun L, McCafferty WP. 2008. Cladistics, classification and identification of the brachycercine mayflies
(Insecta: Ephemeroptera: Caenidae). Zootaxa 1801: 1–239.

Page created: October 29, 2002 - Last updated: May 13, 2011 (EB)