FIGURES 21–31 in First record of hygropetric species in the genus Paegniodes Eaton, 1881 (Ephemeroptera: Heptageniidae) with description of a new species from China

FIGURES 21–31. Paegniodes oligopilus sp. nov. (Scale bars = 0.1mm). 21: femur of foreleg; 22: gill I; 23: partial anterior margin of fore femur; 24: posterolateral projection of abdominal segment VI; 25: gill III; 26: gill VI; 27: apex of tibia on middle leg; 28: base of cerci and median caudal filament; 29: gill VII; 30: middle portion of cerci; 31: middle portion of median caudal filament.