FIGURES 48–54 in The concept of Compsoneuria Eaton, 1881 revisited in light of historical and new material from the Sunda Islands (Ephemeroptera: Heptageniidae: Ecdyonurinae)

FIGURES 48–54. Nymphal maxillae details of Compsoneuriella thienemanni. Fig. 48: SEM view of the dentisetae, proximal dentiseta in red, distal dentisetae in yellow, with first one entire; Figs 49–50: Different angle views of the dentisetae in SEM, to show the outer distal dentiseta always entire; Fig. 51: Same view in optical microscope; Fig. 52: SEM view of fimbriate scattered setae on the ventral face of the galea; Fig. 53: Same view in optical microscope; Fig. 54: SEM view of the combshape setae on the crown of the galea; abbreviations: dp: proximal dentiseta, dd1, first distal dentiseta, dd2, second distal dentiseta.