Published May 26, 2014
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FIGURES 10–13 in What is Ecdyonurus sumatranus Ulmer, 1939? A contribution to the knowledge of the genus Rhithrogena in the Oriental Region (Ephemeroptera, Heptageniidae)
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FIGURES 10–13. Larval structures of Rh. sumatrana (Figs 10 and 12) and Rhithrogena parva (Figs 11 and 13). Figs 10–11: labrum in dorsal position; Figs 12–13: gill I