FIGURES 30–35. Compsoneuriella thienemanni, nymphal mouthparts. Fig. 30 in The concept of Compsoneuria Eaton, 1881 revisited in light of historical and new material from the Sunda Islands (Ephemeroptera: Heptageniidae: Ecdyonurinae)

FIGURES 30–35. Compsoneuriella thienemanni, nymphal mouthparts. Fig. 30: Dorsal view of the head; Fig. 31: Labrum, with structure on the dorsal face (left) and ventral face (right); Fig. 32: Right mandible; Fig. 33: Left mandible; a: general view, b: details of the incisors. c: detail of the right incisor of another specimen; Fig. 34: Hypopharynx (left side); Fig. 35: Labium (left side).