Parmeliella triptophylloides is a species of corticolous (bark-dwelling) lichen in the family Pannariaceae. Found in east Africa, it was formally described as a new species in 2003 by Norwegian lichenologist Per Magnus Jørgensen. The type specimen was collected by Dutch mycologist Rudolf Arnold Maas Geesteranus in 1949, from the Cherang'any Hills at an elevation of 900 m (3,000 ft). In addition to the type locality, it has also been recorded from the Luhangalo Plateau in Tanzania.