three-lined shieldback
Steiroxys trilineatus

Male, Okanagan, near Penticton, British Columbia, Canada.
In 5 Oct 2009 email, Dan Johnson wrote that females outnumber males (>99%) in southern Alberta, where he has never found a male
and that the sex ratio may be more normal in BC, but that not much should be concluded from a sample of one.
Photograph by Dan L. Johnson, University of Lethbridge, used by permission.