Wallaceina
Wallaceina is a genus of parasitic flagellate protist belonging to the family Trypanosomatidae. This generic name is a replacement name for "Proteomonas" because the latter "Proteomonas" was already attributed to a cryptomonad. "Wallaceina" is a taxonomic patronym honoring the protistologist Franklin G. Wallace, a pioneer in the modern taxonomy of trypanosomatids. "Wallaceina" is a monoxenous parasite of insects. Other one-host trypanosomatids from hemipteran and dipteran insects have been traditionally placed in genera "Blastocrithidia", "Crithidia", "Leptomonas", "Herpetomonas", and "Rhynchoidomonas". "Wallaceina" is characterized by endomastigote morphological forms, whereas epimastigotes and opisthomastigotes are features of the genera "Blastocrithidia" and "Herpetomonas", respectively . Comparison and phylogenetic analysis of 18S ribosomal RNA and glycosomal glyceraldehyde-3-phosphatedehydrogenase sequences of trypanosomatid taxa indicate that the genus "Wallaceina" is polyphyletic. It is therefore suggested to reassign "Wallaceina" species either to "Crithidia brevicula" (for "Wallaceina brevicula", "W. inconstans", "W. vicina", and "W. podlipaevi") or to the newly proposed genus "Wallacemonas" (for "Wallaceina collosoma", "W. rigida", and "W. raviniae").