''Paraparaba impositrix'' is a species of

land planarian Geoplanidae is a family of flatworms known commonly as land planarians or land flatworms. These flatworms are mainly predators of other invertebrates, which they hunt, attack and capture using physical force and the adhesive and digestive proper ...

belonging to the subfamily

Geoplaninae Geoplaninae is a subfamily of land planarians endemic to the Neotropical region. Members of this family are sometimes referred to as the Neotropical land planarians. However, one species, '' Obama nungara'' has been introduced in Europe. Descri ...

. It is found in areas of Atlantic Forest of Brazil and Argentina.

Description

''Paraparaba impositrix'' has a dark-brown to black dorsal color with a ferruginous or brownish band, sometimes with a dark median stripe running inside it. It has many dorsal eyes surrounded by clear halos, which appear as light dots.

Taxonomy

Ernst Marcus first described ''Paraparaba impositrix'' in 1951, but misidentified it as ''Geoplana multicolor'', a species described by

Ludwig von Graff Ludwig Graff de Pancsova (2 January 1851 – 6 February 1924), known as Ludwig von Graff, was an Austrian zoologist born in Pancsova. In 1871, he received his medical degree in Vienna, afterwards studying zoology at the University of Graz. In 1 ...

in 1899. During the following decades, the species continued to be erroneously associated with ''Geoplana multicolor'' and even became the type-species of a new genus, ''Paraba'', in 2013. A recent analysis of the original material used by von Graff to describe ''Geoplana multicolor'' revealed that they are not conspecific and von Graff's specimen actually has the diagnostic features of the genus ''

Geoplana ''Geoplana'' is a genus of land planarians from South America. Taxonomic history The genus ''Geoplana'' was erected in 1857 by William Stimpson and included most land planarians with several eyes distributed along the body.Stimpson, W. (1857). ...

'' as currently defined. As a result, ''Paraba'' became a junior synonym of ''Geoplana'' and a new genus, Paraparaba was created for species previously in ''Paraba''. The species described by Marcus thus also received a new name, ''Paraparaba impositrix''.

References

{{Taxonbar, from=Q105103722 Platyhelminthes of Brazil Geoplanidae