5 species in North America (Nearctica.com
4 species in Canada; only 2 east of Alberta (CBIF)
Scales brushed from terminal end of abdomen in males of C. erechtea and C. crassiuscula.
Represented coast to coast in US and Canada; only 2 species occur in the east (crassiuscula and erechtea)
Due to the similarity in spelling, the genus Caenurgina
is sometimes confused with Caenurgia
, a genus in the same subfamily and tribe as Caenurgina
The two species C. crassiuscula - the Clover Looper, and C. erechtea - the Forage Looper are sometimes very difficult to distinguish, and it should be noted that some of the species posted here on BugGuide may well be misidentified, although every effort is made to place them under the correct species. Some specimens are not identifiable from photographs alone.
pinned adult images
of all four species in Canada (CBIF)