Protochauliodes dubitatus is a species of fishfly in the family Corydalidae.

The species was formally described in 1853 by English entomologist Francis Walker under the name Hermes dubitatus.

[2] Its distribution is unknown, with a plausibility being somewhere in South America; despite the mystery surrounding its whereabouts, it is known that the species is absent in Australia and New Zealand.

[1]