“…The latter genus and species have further contributed to our knowledge of the group and provided additional evidence that this group should be placed in the shore-fly family Ephydridae, subfamily Discomyzinae, tribe Psilopini Cresson. Risa and Notorisa are somewhat anomalous genera, demonstrating several structurally derived conditions, especially in external characters of the head that have posed difficulties in placing the family within the Ephydroidea, including, as noted previously, recognition as a separate family or tribe (Papp, 1977). Risa, for example, was included prominently in analyses and discussions of the Ephydroidea (Chandler, 1987;Grimaldi, 1990;Wiegmann et al, 2011;Winkler et al, 2022). An improved phylogenetic framework available for the Ephydroidea and for the family Ephydridae (Chandler, 1987;Zatwarnicki, 1992;Mathis & Zatwarnicki, 1995) provides the context for this paper, including placement of these genera within the shore-fly tribe Psilopini Cresson (see "Discussion" associated with the tribal diagnosis).…”