P. compressa sp. n. (holotype International Odonata Research Institute (IORI) collection, Gainesville, Florida, USA) is described from 1 Q, 3 9 collected near Llachapa, NE of Iquitos, Loreto Department, Peru. The male paraprocts are apically rounded in lateral view, and compressed vertically, a unique shape in the genus. Females of compressa and iquita Dunkle are similar, but differ by sculpturing of prothorax and shape of ovipositor.