Insecta - Diptera - Bibionidae

Alternative combinations: Plecia gracilis, Protomyia gracilis

Belongs to Penthetria according to N. L. Evenhuis 1994

Sister taxa: Penthetria abacula, Penthetria alderensis, Penthetria beskonakensis, Penthetria bohemica, Penthetria brevipennis, Penthetria bucklandi, Penthetria creedensis, Penthetria elegans, Penthetria fryi, Penthetria inflata, Penthetria intermedia, Penthetria lapidaria, Penthetria livida, Penthetria longa, Penthetria longifurca, Penthetria lugens, Penthetria lygaeoides, Penthetria marinosi, Penthetria rubiensis, Penthetria whipsawensis