Helina viola Malloch, 1934
(Fig. 15 E)
For a complete list of references, see the catalog by Carvalho et al. (2005). Information subsequent to this catalog: Löwerberg-Neto et al. 2011 (biogeography); Löwerberg-Neto & Carvalho 2013 (checklist).
Remarks. Malloch (1934) described H. viola from a single female specimen from Lago Gutierrez, Río Negro, Argentina. This species is distinguished from other Helina species recorded in the region by the metallic coloration. We have not included the redescription of this species because we did not observe or collect any specimen.
Biology. Unknown.
Distribution (Fig. 15 E). ARGENTINA. Rio Negro.