Although Caucci and Nastasi write this genus off as unimportant in Hatches II, and most authors don't mention it at all, there are some who praise the localized hatches of Dannella simplex for providing good fishing.
Where & when
In 24 records from GBIF, adults of this genus have mostly been collected during July (42%), June (29%), August (13%), and April (8%).
In 10 records from GBIF, this genus has been collected at elevations ranging from 3 to 2559 ft, with an average (median) of 1901 ft.