This name is used in parts of Wisconsin to describe species nearly identical in form and behavior to yellow "Sulphurs" like Ephemerella invaria, but with a distinct green color.
This common name refers to only one species.
These are sometimes called Booger Sulphurs.
This intriguing species has received a lot of attention in past angling books. Recent authors suspect that much of this credit was a case of mistaken identity, with Attenella attenuata
receiving praise for the hatches of Drunella lata
and Dannella simplex
. Much of the credit was
legitimate and accurate, but this species is no longer thought to be on par with its most popular cousins in Ephemerella
I have several specimens listed under this species, but I'm not positive the identification is correct.