Sc1 reaching C distad of the level of R forking; Sc2 slightly distad of R forking. Crossvein r-m 1.3 times as long as bRs. Legs: Fore, mid and hind coxae expanded; femur clearly thicker than tibia; tibia spur well-developed, claws very small. Abdomen: The 2nd to 5th tergites wider than the others; the 8th tergite terminal not preserved.