A new species in Trichosalpinx is described, illustrated, and compared with similar species, and a new record for Peru is described and illustrated. A brief history of the genus is provided. Trichosalpinx reticulata is most similar to T. carmeniae, but differs with a reticulated, gray-green leaf; a longer inflorescence; and a lip with a pair of low, rounded basal lobes and an obtuse apex. Trichosalpinx acremona is recorded from Peruvian collections.